Welcome to Samanta's Research Group





Publications



From 2010 - Current

From 2010 - Current

  • Zn(II) Alloying Improves the Luminescence Efficiency of Hybrid Tetrahedral Mn(II) Halides ((DMAPH)2MnX4; X = Cl, Br, and I) to Near-Unity,R.Babu, A. Samanta, S. Prashanthkumar and L. Polavarapu ACS Materials Lett. 5 (2023) 2131.
  • Photoluminescence Blinking of Quantum Confined CsPbBr3 Perovskite Nanocrystals: Influence of Size, S. Paul, G. Kishore and A. Samanta, J. Phys. Chem.C. 127 (2023) 10207.
  • Stable and Intense Violet-Emitting CsPbCl3 Nanocrystals for Light-Emitting Diodes: Directly Obtained by L-Type Surface Passivation,S. Das, M. Hossain and A.Samanta, ACS Appl. Nano Mater., 6 (2023) 4812.
  • Phase-Stable and Highly Luminescent CsPbI3 Perovskite Nanocrystals with Suppressed Photoluminescence Blinking,S. Paul and A. Samanta, J. Phys. Chem. Lett. 13 (2022) 5742.
  • On direct synthesis of high quality APbX3 (A = Cs+, MA+ and FA+; X = Cl-, Br- and I-) nanocrystals following a generic approach,S. Das and A.Samanta, Nanoscale, 14 (2022) 9349.
  • Room-TemperatureTreatment with Thioacetamide Yielding Blue-and Green-Emitting CsPbX3 Perovskite Nanocrystals with Enhanced Photoluminescence Efficiency and Stability, R.K. Gautam, S. Das and A.Samanta, ChemNanoMat, (2022) e202200029.
  • Can Sulfur-Containing Small Systems Enhance the Photoluminescence and Stability of the Blue-, Green- and Yellow-Emitting Perovskite Nanocrystals? A Case Study with Sodium Thiosulfate, R.K. Gautam, S. Das and A.Samanta, J. Phys. Chem. C, 125 (2021) 24170.
  • Effect of Lead:Halide Precursor Ratio on the Photoluminescence and Carrier Dynamics of Violet- and Blue-Emitting Lead Halide Perovskite Nanocrystals, S.Paul, T. Ahmed, S.Das and A. Samanta, J. Phys. Chem. C, 125 (2021) 23539.
  • Highly Luminescent and Phase-Stable Red/ NIR-Emitting All-Inorganic and Hybrid Perovskite Nanocrystals, S.Das and A. Samanta, ACS Energy Lett. 6 (2021) 3780.
  • Solute Rotation and Solvation Dynamics in Deep Eutectic Solvents, S. S. Hossain and A. Samanta, Chemical Physics Impact 3 (2021) 100043.
  • Lack of Environmental Sensitivity of a Naturally Occurring Fluorescent Analog of Cholesterol, A.Chattopadhyay, S.C. Biswas, R. Rukmini, S. Saha and A. Samanta, Journal of Fluorescence 31 (2021) 1401.
  • Structural Stability and Conformational Dynamics of Cytochrome c in Hydrated Deep Eutectic Solvents, S. S. Hossain, S. Paul, and A. Samanta, J. Phys. Chem. B 125 (2021) 5757.
  • Dark Excitons of the Perovskites and Sensitization of Molecular Triplets,N. Mondal, A. De, S.Seth, T. Ahmed, S. Das, S.Paul, R.K. Gautam and A.Samanta, ACS Energy Lett. 6 (2021) 588.
  • Individual Particle-Level Picture of Charge Carrier Recombination in Bi-Doped CsPbBr3 Nanocrystals, T. Ahmed A. De, S.Paul and A. Samanta, J. Phys. Chem. C 125 (2021) 2156.
  • Comparative photophysical and femtosecond third-order nonlinear optical properties of novel imidazole substituted metal phthalocyanines, S. Bhattacharya, G. Reddy, S. Paul, S. S. Hossain, S. Ravi, L. Giribabu, A. Samanta, S. Venugopal Rao, Dyes and Pigments 184 (2021) 108791.
  • On the Stability and Conformational Dynamics of Cytochrome c in Ammonium Ionic Liquids, A. Pabbathi, and A. Samanta, J. Phys. Chem. B 124 (2020) 8132.
  • Hot Hole Transfer Dynamics from CsPbBr3Perovskite Nanocrystals, A.De, S.Das, A.Samanta, ACS Energy Lett. 5 (2020) 2246.
  • Complete Solvation Dynamics of Coumarin 153 in Tetraalkylammonium Bromide-Based Deep Eutectic Solvents, S. S. Hossain, S. Paul, and A. Samanta, J. Phys. Chem. B 124 (2020) 2473.
  • Ambient Condition Mg2+ Doping Producing Highly LuminescentGreen- and Violet-Emitting Perovskite Nanocrystals with ReducedToxicity and Enhanced Stability, S.Das, A.De and A.Samanta, J. Phys. Chem. Lett. 11 (2020) 1178.
  • Insights into the Folding Pathway of a c-MYC-Promoter-Based i-Motif DNA in Crowded Environments at the Single-Molecule Level, S. Paul, S.S. Hossain, A. Samanta, J. Phys. Chem. B 124 (2020) 763.
  • N-Bromosuccinimide as Bromide Precursor for Direct Synthesis of Stable and Highly Luminescent Green-Emitting Perovskite Nanocrystals, S.Paul and A. Samanta, ACS Energy Lett. 5 (2020) 64.
  • Mechanistic Investigation of the Defect Activity Contributing to the Photoluminescence Blinking of CsPbBr3 Perovskite Nanocrystals, T. Ahmed, S. Seth, and A. Samanta, ACS Nano 13 (2019) 13537.
  • Liquid Structure and Dynamics of Tetraalkylammonium Bromide-Based Deep Eutectic Solvents: Effect of Cation Chain Length, S. S. Hossain, S. Paul, and A. Samanta, J. Phys. Chem. B 123 (2019) 6842.
  • Tackling the Defects, Stability, and Photoluminescence of CsPbX3 Perovskite Nanocrystals, S. Seth, T. Ahmed, A. De, and A. Samanta, ACS Energy Lett. 4 (2019) 1610.
  • Highly Luminescent Violet- and Blue-Emitting Stable Perovskite Nanocrystals, A. De, S. Das, N. Mondal, and A. Samanta, ACS Materials Lett. 1 (2019) 116.
  • Ultrafast carrier dynamics of metal halide perovskite nanocrystals and perovskite-composites, N. Mondal, A. De, S. Das, S.Paul and A. Samanta, Nanoscale 11 (2019) 9796.
  • Interactions between a Bioflavonoid and c-MYC Promoter G-Quadruplex DNA: Ensemble and Single-Molecule Investigations,S. Paul, S. S. Hossain, B. Divya M and A. Samanta, J. Phys. Chem. B 123 (2019) 2022.
  • Broadband ultrafast nonlinear optical studies revealing exciting multi-photon absorption coefficients in phase pure zero-dimensional Cs4 PbBr6 perovskite films, K. N. Krishnakanth,S.Seth,A.Samanta,S. Venugopal Rao, Nanoscale 11(2019) 945.
  • Achieving Near-Unity Photoluminescence Efficiency for Blue-Violet-Emitting Perovskite Nanocrystals, N. Mondal, A. De and A. Samanta, ACS Energy Lett. 4 (2019) 32.
  • Photoluminescence Flickering and Blinking of Single CsPbBr3 Perovskite Nanocrystals: Revealing Explicit Carrier Recombination Dynamics,S. Seth, T. Ahmed, and A. Samanta, J. Phys. Chem. Lett. 9 (2018) 7007.
  • How Do the Hydrocarbon Chain Length and Hydroxyl Group Position Influence the Solute Dynamics in Alcohol-Based Deep Eutectic Solvents? S. S. Hossain and A. Samanta, Phys. Chem. Chem. Phys. 20 (2018) 24613.
  • Hole Transfer Dynamics from Photoexcited Cesium Lead Halide Nanocrystals: 1-Aminopyrene as Hole Acceptor, A. De, N. Mondal and A. Samanta, J. Phys. Chem. C 122 (2018) 13617.
  • Biexciton Generation and Dissociation Dynamics in Formamidinium- and Chloride-Doped Cesium Lead Iodide Perovskite Nanocrystal, N. Mondal, A. De and A. Samanta, J. Phys. Chem. Lett. 9 (2018) 3673.
  • Boosting the Photoluminescence of CsPbX3 (X=Cl, Br, I) Perovskite Nanocrystals Covering a Wide Wavelength Range by Post-Synthetic Treatment with Tetrafluoroborate Salts, T. Ahmed, S. Seth and A. Samanta, Chem. Mater. 30 (2018) 3633.
  • Ground and Excited State Interactions of a Psoralen Derivative with Human Telomeric G-Quadruplex DNA, S. Paul and A. Samanta, J. Phys. Chem. B 122 (2018) 2277.
  • An Ultrafast Transient Absorption Study of Charge Separation and Recombination Dynamics in CdSe QDs and Methyl Viologen: Dependence on Surface Stoichiometry, M.C. Sekhar, S.Paul, A.De, A.Samanta, Chemistry Select 3 (2018) 2675.
  • Broadband femtosecond nonlinear optical properties of CsPbBr3 perovskite nanocrystals, K. N. Krishnakanth, S. Seth, A. Samanta, S. Venugopal Rao, Optics Letts. 43 (2018) 603.
  • All-Inorganic Perovskite Nanocrystals Assisted Extraction of Hot Electrons and Biexcitons from Photoexcited CdTe Quantum Dots, N. Mondal, A. De and A. Samanta, Nanoscale 10 (2018) 639.
  • Photoluminescence of Zero-Dimensional Perovskites and Perovskite-Related Materials, S. Seth and A. Samanta, J. Phys. Chem. Lett. 9 (2018) 176.
  • Solute Rotation and Translation Dynamics in an Ionic Deep Eutectic Solvent Based on Choline Chloride, S.S. Hossain and A. Samanta, J. Phys. Chem. B 121 (2017) 10556.
  • Luminescence Tuning and Exciton Dynamics of Mn-doped CsPbCl3 Nanocrystals. A. De, N. Mondal and A. Samanta, Nanoscale 9 (2017) 16722.
  • Fluorescent Phase-Pure Zero-Dimensional Perovskite-Related Cs4PbBr6 Microdisks: Synthesis and Single-Particle Imaging Study, S. Seth and A. Samanta, J. Phys. Chem. Lett. 8 (2017) 4461.
  • Influence of Divalent Counterions on the Dynamics in DNA as Probed by Using a Minor-Groove Binder, S. Paul, T. Ahmed and A. Samanta, ChemPhysChem 18 (2017) 2058.
  • Complete Ultrafast Charge Carrier Dynamics in Photoexcited All-Inorganic Perovskite Nanocrystals (CsPbX3), N. Mondal and A. Samanta, Nanoscale 9 (2017) 1878. .
  • Roles of the Methyl and Methylene Groups of Mercapto Acids in the Photoluminescence Efficiency and Carrier Trapping Dynamics of CdTe QDs, M. C. Sekhar, A. De, S.S. Hossain and A. Samanta, Phys. Chem. Chem. Phys. 19 (2017) 1536.
  • A Facile Methodology for Engineering the Morphology of CsPbX3 Perovskite Nanocrystals under Ambient Condition, S. Seth and A. Samanta, Sci. Rep. 6 (2016) 37693.
  • Photoinduced 2-way Electron Transfer in Composites of Metal Nanoclusters and Semiconductor Quantum Dots, N. Mondal, S. Paul and A. Samanta, Nanoscale, 8 (2016) 14250.
  • Fluorescence Blinking and Photoactivation of All-Inorganic Perovskite Nanocrystals CsPbBr3 and CsPbBr2I, S. Seth, N. Mondal, S. Patra, and A. Samanta, J. Phys. Chem. Lett. 7 (2016) 266.
  • Ultrafast Charge Transfer and Trapping Dynamics in a Colloidal Mixture of Similarly Charged CdTe Quantum Dots and Silver Nanoparticles, N. Mondal and A. Samanta, J. Phys. Chem. C 120 (2016) 650.
  • Hexaethylsubporphyrins: β-alkyl Analogues in the Subporphyrin Family, B. Chandra,B. S. Kumar, N. Mondal, A. Samanta and P. K. Panda, Dalton Trans. 44 (2015) 19966.
  • Effect of Controlled Deposition of ZnS Shell on the Photostability of CdTe Quantum Dots as Studied by Conventional Fluorescence and FCS Techniques, S. Patra, S. Seth and A. Samanta ChemPhysChem 16 (2015) 3871.
  • Spectroscopic and Molecular Docking Study of the Interaction of DNA with a Morpholinium Ionic Liquid, A. Pabbathi and A. Samanta, J. Phys. Chem. B 119 (2015) 11099.
  • Fluorescence Studies of the Microenvironments of the Morpholinium Room Temperature Ionic Liquids, D.C. Khara, K. Santhosh and A. Samanta in B.K. Paul and S. P. Moulik, Ed. In "Ionic Liquid-Based Surfactant Science: Formulation, Characterization and Applications," "John Wiley & Sons, NJ, USA, 2015, p. 151-172.
  • Ultrafast Transient Absorption Study of the Nature of Interaction between Oppositely Charged Photoexcited CdTe Quantum Dots and Cresyl Violet, M.C. Sekhar and A. Samanta, J. Phys. Chem. C 119 (2015) 15661.
  • Contrasting Fluorescence Response of Two Dipolar Fluorescence Probes in a Leucine-Based Organogel and Its Implications, S. Soumya, S. Seth, S. Paul, and A. Samanta, ChemPhysChem 16 (2015) 2440.
  • Temporal Behavior of the Singlet Molecular Oxygen Emission in Imidazolium and Morpholinium Ionic Liquids and Its Implications, T. Yoshida, A. Kawai, D. C. Khara, and A. Samanta, J. Phys. Chem. B 119 (2015) 6696.
  • Ionic Liquid-induced all -a to a+b Conformational Transition in Cytochrome C with Improved Peroxidase Activity in Aqueous Medium, P Bharmoria, T. J. Trivedi, A. Pabbathi, A. Samanta and A. Kumar Phys. Chem. Chem. Phys. 17 (2015) 10189.
  • Intramolecular Cycloadditions of Photogenerated Azaxylylenes: An Experimental and Theoretical Study, O.A. Mukhina, W.C. Kronk, N.N. Bhuvan Kumar, M.C. Sekhar, A. Samanta, A.G. Kutateladze J. Phys. Chem. A 118 (2014) 10487.
  • CdTe Quantum Dots in Ionic Liquid: Stability and Hole Scavenging in Presence of a Sulfide salt, M.C. Sekhar, K. Santhosh, J. Praveen Kumar, N. Mondal, S. Soumya and A. Samanta, J. Phys. Chem. C 118 (2014) 18481.
  • Effect of Capping Agent and Medium on Light-Induced Variation of the Luminescence Properties of CdTe Quantum Dots: A Study Based on Fluorescence Correlation Spectroscopy, Steady State and Time-Resolved Fluorescence Techniques, S.Patra and A. Samanta, J. Phys. Chem. C 118 (2014) 18187.
  • Does Excited State Proton Transfer Reaction Contribute to the Emission Behaviour of 4-Aminophthalimide in Aqueous media? D. C. Khara, S. Banerjee and A. Samanta, ChemPhysChem 15 (2014) 1793.
  • An FCS study of the structural stability of lysozyme in the presence of morpholinium salts, A. Pabbathi, S. Ghosh and A. Samanta, J. Phys. Chem. B 117 (2013) 16587.
  • A Fluorescence Correlation Spectroscopy, Steady-State, and Time-Resolved Fluorescence Study of the modulation of Photo physical properties of mercaptopropionic acid capped CdTe quantum dots upon exposure to light, S. Patra and A. Samanta, J. Phys. Chem. C 117 (2013) 23313.
  • Comment on An interesting case where water behaves as a unique solvent. 4-Aminophthalimide emission profile to monitor aqueous environment, D. C. Khara and A. Samanta, J. Phys. Chem. B 117 (2013) 5387 (Comment).
  • Structural transformation of bovine serum albumin induced by dimethyl sulfoxide and probed by fluorescence correlation spectroscopy technique and additional methods, A. Pabbathi, S. Patra and A. Samanta, ChemPhysChem 14(11) (2013) 2441.
  • Effect of alkyl chain length on the rotational dynamics of nonpolar and dipolar solutes in a series of N-alkyl-N-methylmorpholinium ionic liquids, D. C. Khara, J. Praveen Kumar, N. Mondal and A. Samanta, J. Phys. Chem. B 117 (2013) 5156.
  • A fluorescence study of the solute-solvent interactions of aminochalcones in a room temperature ionic liquid, K. Santhosh, G. K. Grandhi, S. Ghosh and A. Samanta, Pure and Appl. Chem. 85 (2013) 1451.
  • Fluorescence response of coumarin-153 in N-alkyl-N-morpholinium ionic liquids: Are these liquids are more structured than the imidazolium ionic liquids? D. C. Khara and A. Samanta, J. Phys. Chem. B 116 (2012) 13430.
  • Microheterogeneity of some imidazolium ionic liquids as revealed by fluorescence correlation spectroscopy and lifetime studies, S. Patra and A. Samanta, J. Phys. Chem. B 116 (2012) 12275.
  • Exploring the CdTe quantum dots in ionic liquids by employing a luminescent hybrid of the two, K. Santhosh and A. Samanta, J. Phys. Chem. C 116 (2012) 20643.
  • Reply to comments on 'Dual Fluorescence of ellipticine: excited state proton transfer from solvent versus solvent mediated intramolecular proton transfer ', S. Banerjee, P. Ashok, M. Chandra Sekhar and A. Samanta, J. Phys. Chem. A 116 (2012) 901.
  • Diffusion of organic dyes in bovine serum albumin solution studied by fluorescence correlation spectroscopy, S. Patra, K. Santhosh, A. Pabbathi and A. Samanta, RSC Advances 2 (2012) 6079.
  • Fluorescence, phosphorescence and delayed fluorescence of benzil in imidazolium ionic liquids, D. C. Khara and A. Samanta, Aus. J. Chem. 65 (2012) 1291.
  • Differential effect of cholesterol and its biosynthetic precursors on membrane dipole potential, S. Haldar, R. K. Kanaparthi, A. Samanta and A. Chattopadhyay, Biophys. J. 102 (2012) 1561.
  • What determines the rate of excited state intramolecular electron transfer reaction of 4-(N,N'-dimethylamino)benzonitrile in room temperature ionic liquids? A case study in [bmim][PF6], K. Santhosh and A. Samanta, ChemPhysChem 13 (2012) 1956.
  • Fluorescence quenching of CdS quantum dots by 4-azetidinyl-7-nitrobenz-2-oxa-1,3-diazole: A mechanistic study, K. Santhosh, S. Patra, S. Soumya, D. C. Khara and A. Samanta, ChemPhysChem 12 (2011) 2735.
  • Laser flash photolysis study on 9-phenylxanthenium tetrafluoroborate: Identification of new features due to the triplet state, S. Banerjee and A. Samanta, J. Chem. Sci. 123 (2011) 15.
  • Dual fluorescence of ellipticine: Excited state proton transfer from solvent versus solvent mediated intramolecular proton transfer, S. Banerjee, A. Pabbathi, M. C. Sekhar and A. Samanta, J. Phys. Chem. A 115 (2011) 9217.
  • Synthesis, structure and luminescence behavior of a mononuclear cadmium(II)dicyanamide and a coordination polymer of mercury(II)dicyanamide containing 2,2'-dipyridylamine (dpaH) as end-capping ligand/anion of dpaH as binucleating bridge. Variance in coordination numbers, nuclearities and architectures with metal ion templates, S. Das, K. Bhar, S. Chantrapromma, H-K. Fun, R. K. Kanaparthi, A. Samanta and B. K. Ghosh, Inorg. Chim. Acta 367 (2011) 199.
  • Folding and unfolding movements in a [2]pseudorotaxane, M. Suresh, A. K. Mandal, M. K. Kesharwani, N. N. Adarsh, B. Ganguly, R. K. Kanaparthi, A. Samanta and A. Das, J. Org. Chem. 76 (2011) 138.
  • "Fluorescence probing of the physicochemical characteristics of the room temperature ionic liquids" by A. Samanta, a Book chapter of the "Advanced fluorescence reporters in chemistry and biology III: Applications in sensing and imaging" Dr. A. P. Demchenko (Volume Editor), Springer, 2011.
  • Modulation of the excited state intramolecular electron transfer reaction and dual fluorescence of crystal violet lactone in room temperature ionic liquids, K. Santhosh and A. Samanta, J. Phys. Chem. B 114 (2010) 9195.
  • Time-resolved studies of photoinduced processes in room temperature ionic liquids, A. Paul and A. Samanta, Ind. J. Chem. 49A (2010) 649.
  • Rotational dynamics of positively and negatively charged solutes in ionic liquid and viscous molecular solvent studied by time-resolved fluorescence anisotropy measurements, D. C. Khara, A. Samanta, Phys. Chem. Chem. Phys. 12 (2010) 7671.
  • Solvation dynamics and red-edge effect of two electrically charges solutes in an imidazolium ionic liquid, D. C. Khara and A. Samanta, Ind. J. Chem. 49A (2010) 714.
  • Solvation dynamics in ionic liquids: What we have learned from the dynamic fluorescence Stokes shift studies, A. Samanta, J. Phys. Chem. Lett. 1 (2010) 1557 (perspective article).
  • Spectroscopic and theoretical investigations on effective and selective interaction of fullerenes C60 and C70 with a derivatized Zn-Phthalocyanin: Stabilization of charge recombined state by side on approach of C70, A. Ray, K. Santhosh, S. Chattopadhyay, A. Samanta and S. Bhattacharya, J. Phys. Chem. A 114 (2010) 5544.
  • Fluorescence response of 4-(N,N'-dimethylamino)benzonitrile in room temperature ionic liquids: observation of photobleaching under mild excitation condition and multi photon confocal microscopic study of the recovery dynamics, K. Santhosh, S. Banerjee, N. Rangaraj and A. Samanta, J. Phys. Chem. B 114 (2010) 1967.

From 2000 - 2009

From 2000 - 2009

  • Probing the aggregated state of 4-(9-anthryl)-N,N-dimathylaniline by UV-Vis absorption and fluorescence spectroscopy, microscopy and crystallography, R. K. Kanaparthi, M. Sarkar and A. Samanta, J. Phys. Chem. B 113 (2009) 15189.
  • Excited state dynamics of 9,9′-bianthryl in room temperature ionic liquids as revealed by pico second time resolved fluorescence study, D. C. Khara, A. Paul, K. Santhosh and A. Samanta, J. Chem. Sci. 121 (2009) 309.
  • Interaction of bovine serum albumin with dipolar molecules: fluorescence and molecular docking studies, B. Bhattacharya, S. Nakka, L. Guruprasad and A. Samanta, J. Phys. Chem. B 113 (2009) 2143.
  • Solvation dynamics of a surfactant probe in mesostructured silica-surfactant nanocomposites, A. Paul, M. Sarkar, D. C. Khara, T. Kamijo, A. Yamaguchi, N. Teramae and A. Samanta, Chem. Phys. Lett. 469 (2009) 71.
  • Free volume dependence of the internal rotation of a molecular rotor probe in room temperature ionic liquids, A. Paul and A. Samanta, J. Phys. Chem. B 112 (2008) 16626.
  • Excited-state proton-transfer dynamics of 7-Hydroxyquinoline in room temperature ionic liquids, B. Bhattacharya and A. Samanta, J. Phys. Chem. B 112 (2008) 10101.
  • Mechanism of interaction of a flavone derivative with halides: Basis set dependence of the theoretical results, M. Sarkar and A. Samanta, J. Mol. Struc.: THEOCHEM 863 (2008) 111.
  • Effect of nonpolar solvents on the solute rotation and solvation dynamics in an imidazolium ionic liquid, A. Paul and A. Samanta, J. Phys. Chem. B 112 (2008) 947.
  • Polarity dependence of the radiative and nonradiative rates of flavone derivatives comprising structurally similar amino moieties: Change in the nature of the emitting state, M. Sarkar, K. Ravi Kumar, B. Bhattacharya and A. Samanta, J. Phys. Chem. A 112 (2008) 3302.
  • 4-(N,N-dimethylamino)benzonitrile: A twist in the excited state? A. Samanta, Resonance (2007) 79.
  • Laser flash photolysis study of aminophthalimide derivatives: Elucidation of nonradiative deactivation route, B. Bhattacharya and A. Samanta, Chem. Phys. Lett. 442 (2007) 316.  
  • Charge-transfer-induced twisting of the nitro group, J. A. Mondal, M. Sarkar, A. Samanta, H. N. Ghosh and D. K. Palit, J. Phys. Chem. A 111 (2007) 6122.
  • Photophysical and density functional studies of the interaction of a flavone derivative with the halides, M. Sarkar and A. Samanta, J. Phys. Chem. B 111 (2007) 7027.
  • Photoinduced electron transfer reaction in room temperature ionic liquids: A combined laser flash photolysis and fluorescence study, A. Paul and A. Samanta, J. Phys. Chem. B 111 (2007) 1957.
  • Ratiometric fluorescence signaling of fluoride ions by an amidophthalimide derivative, M. Sarkar, Y. Raghavendra, B. Bhattacharya, K. Ravi Kumar and A. Samanta, J. Chem. Sci. 119 (2007) 91.
  • Solute rotation and solvation dynamics in an alcohol-functionalized room temperature ionic liquid, A. Paul and A. Samanta, J. Phys. Chem. B 111 (2007) 4724.
  • A highly selective ′off-on′ fluorescence chemosensor for Cr(III), M. Sarkar, S. Banthia and A. Samanta, Tet. Lett. 47 (2006) 7575.
  • Structure-property relationship of aminonitrofluorenes by copper-mediated Ullmann type C-N bond formation, M. Sarkar and A. Samanta, Synthesis (2006) 3425.
  • Optical absorption and fluorescence studies on imidazolium ionic liquids comprising the bis(trifluoromethanesulfonyl)imide anion, A. Paul and A. Samanta, J. Chem. Sci. 118 (2006) 335.
  • pH-regulated ′off-on′ fluorescence signaling of d-block metal ions in aqueous media and realization of molecular IMP logic function, M. Sarkar, S. Banthia, A. Patil, B. Ansari and A. Samanta, New J. Chem. 30 (2006) 1557.
  • Dynamic Stokes shift and excitation wavelength dependent fluorescence of dipolar molecules in room temperature ionic liquids, A. Samanta, J. Phys. Chem. B 110 (2006) 13704 (Feature Article).
  • A new strategy for ratiometric fluorescence detection of transition metal ions, S. Banthia and A. Samanta, J. Phys. Chem. B 110 (2006) 6437.
  • Charge Resonance Character in Charge Transfer State of Bianthryls: Effect of Symmetry Breaking on Time-Resolved Near-IR Absorption Spectra, T. Takaya, S. Saha, H. Hamaguchi, M. Sarkar, A. Samanta, and K. Iwata, J. Phys. Chem. A 110 (2006) 4291.
  • Size-dependent evolution of optical properties on molecular/nano microcrystals: manifestation of hierarchical interaction, A. Patra, N. Hebalkar, B. Sreedhar, M. Sarkar, A. Samanta and T.P. Radhakrishnan, Small 5 (2006) 650.
  • Synthesis and Structure of Unusually Stable Linear Copper(I) Complexes with Blue Fluorescence, S. Banthia and A. Samanta, Polyhedron 25 (2006) 2269.
  • Excitation wavelength dependent fluorescence behavior of the room temperature ionic liquids and dissolved dipolar solutes, P. K. Mandal, A. Paul and A. Samanta, J. Photochem. Photobiol. A: Chemistry 182 (2006) 113.
  • Long and short brick network architecture: role of water molecules acting as three-connecting spacers, S. Banthia and A. Samanta, Cryst. Growth Des. 6 (2006) 360.
  • Room temperature ionic liquids as media for photophysical studies, P.K. Mandal, A. Paul and A. Samanta, J. Chin. Chem. Soc. 53 (2006) 247.
  • A colorimetric chemosensor for both fluoride and transitional metal ions based on dipyrrolyl derivative, T. Ghosh, B. G. Maiya and A. Samanta, J. Chem. Soc. Dalton Trans. (2006) 795.
  • Solvation dynamics in room temperature ionic liquids: dynamic Stokes shift studies of Fluorescence of Dipolar Molecules, P. K. Mandal, S. Saha, R. Karmakar and A. Samanta, Current Science 90 (2006) 301.
  • Multiple logical access with a single fluorophore-spacer-receptor system: realization of inhibit (INH) logic function, S. Banthia and A. Samanta, Eur. J. Org. Chem. (2005) 4967.
  • Fluorescence studies in a pyrrolidinium ionic liquid: polarity of the medium and solvation dynamics, P. K. Mandal and A. Samanta, J. Phys. Chem. B 109 (2005) 15172.
  • Mixed-ligand complexes of Ruthenium(II) containing new photo- or electro-active ligands: synthesis, spectral characterization and DNA Interactions, T. Ghosh, B. G. Maiya, A. Samanta, A. D. Shukla, D. Amilan Jose, D. Krishna Kumar, and A. Das, J. Biol. Inorg. Chem. 10 (2005) 496.
  • A two-dimensional chromogenic sensor as well as fluorescence inverter: selective detection of copper(II) in aqueous medium, S. Banthia and A. Samanta, New. J. Chem. 29 (2005) 1007.
  • Influence of structure on the unusual spectral behavior of 4-dialkylamino-1,8-naphthalimide, S. Banthia and A. Samanta, Chem. Lett. 34 (2005) 722.
  • Fluorescence response of mono- and tetra-azacrown derivatives of 4-aminophthalimide with and without some transition and post transition metal ions, N. B. Sankaran, Prasun K. Mandal, Bhaswati Bhattacharya and A. Samanta, J. Mater. Chem. 15 (2005) 2854.
  • Calix[4]azacrown and 4-Aminophthalimide-Appended Calix[4]azacrown: Synthesis, Structure, Complexation and Fluorescence Signaling Behaviour, S. Banthia and A. Samanta, Org. Biomol. Chem. 3 (2005) 1428.
  • On the optical properties of the imidazolium ionic liquids, A. Paul. P. K. Mandal and A. Samanta, J. Phys. Chem. B 109 (2005) 9148.
  • Synthesis, photophysical and metal ion signaling behaviour of mono- and di-azacrown derivatives of 4-aminophthalimide, N.B. Sankaran, M. Sarkar and A. Samanta, J. Chem. Sci. 117 (2005) 105.
  • How Transparent are the Imidazolium Ionic Liquids? A Case Study with 1-Methyl-3-butylimidazolium Hexafluorophosphate, A. Paul. P. K. Mandal and A. Samanta, Chem. Phys. Lett. 402 (2005) 375.
  • Fluorescence studies in environmentally benign solvents: Solvation dynamics of coumarin 102 in [BMIM][BF4], P.K. Mandal, A. Paul and A. Samanta, Res. Chem. Interm. 31 (2005) 575.
  • Off-on fluorescence signalling of transition metal ions, N.B. Sankaran and A. Samanta, ISRAPS Bulletin 16 (2005) 27.
  • Photophysical and transition metal ion signalling properties of some 4-amino-1,8-naphthalimide derivatives, S. Banthia, M. Sarkar and A. Samanta, Res. Chem. Interm. 31 (2005) 25.
  • In-Situ Reduction of Copper(II) forming an Unusually Air Stable Linear Complex of Copper(I) with a Fluorescent Tag, S. Banthia and A. Samanta, Inorg. Chem. 43 (2004) 6890.
  • Excitation wavelength dependent fluorescence behavior of some dipolar molecules in room temperature ionic liquids, P.K. Mandal, M. Sarkar and A. Samanta, J. Phys. Chem. B 108 (2004) 9048.
  • Solvation dynamics of nile red in a room temperature ionic liquid using streak camera, S. Saha, P. K. Mandal and A. Samanta, Phys. Chem. Chem. Phys. 6 (2004) 3106.
  • N-(4-amino-2-methylphenyl)-4-chlorophthalimide, S. Banthia and A. Samanta, Acta Cryst E 59 (2004) 740.
  • 10,10′-Dibromo-9,9′-bianthryl, M. Sarkar and A. Samanta, Acta Cryst. E59 (2003) o1764.
  • Evidence of ground state proton transfer reaction of 3-hydroxyflavone in neutral alcoholic solvents, P. K. Mandal and A. Samanta, J. Phys. Chem. A 107 (2003) 6334.
  • Room temperature ionic liquids as novel media for photophysical studies, A. Samanta, ISRAPS Bulletin 14 (2003) 5.
  • Intramolecular excimer formation kinetics in room temperature ionic liquids, R. Karmakar and A. Samanta, Chem. Phys. Lett. 376 (2003) 638.
  • Dynamics of solvation of the fluorescent state of some electron donor-acceptor molecules in room temperature ionic liquids, [BMIM][ (CF3SO2)2N] and [EMIM][ (CF3SO2)2N], R. Karmakar and A. Samanta, J. Phys. Chem. A 107 (2003) 7340.
  • Structure of a self-assembled chain of water in a crystal host, S. Pal, N.B. Sankaran and A. Samanta, Angew. Chem. Int. Ed. 42 (2003) 1741- 1743.
  • Electron donor-acceptor molecules: photophysics and applications, A. Samanta, Proc. Ind. Natl. Sci. Acad. 69 A (2003) 95-107.
  • Fluorescence signalling of the transition metal ions: design strategy based on the choice of the fluorophore component, N.B. Sankaran, S. Banthia and A. Samanta, Proc. Ind. Acad. Sci. 114 (2002) 539-545.
  • Redox switchable NIR dye derived from Ruthenium-dioxolene complexes, A.D. Shukla, B. Ganguly, P.C. Dave, A. Samanta and A. Das, Chem. Commun. (2002) 2648.
  • Fluorescence signalling of the transition metal ions: a new approach, N.B. Sankaran, S. Banthia, A. Das and A. Samanta, New J. Chem. 26 (2002) 1529.
  • Steady state and time-resolved fluorescence behavior of C153 and PRODAN in room temperature ionic liquids, R. Karmakar and A. Samanta, J. Phys. Chem. A 106 (2002) 6670.
  • Off-on fluorescence signalling of a transition metal ions by a fluorophore-appended cryptand system, S. Banthia and A. Samanta, J. Phys. Chem. B 106 (2002) 5572.
  • Solvation dynamics of Coumarin-153 in a room temperature ionic liquid, R. Karmakar and A. Samanta, J. Phys. Chem. A 106 (2002) 4447.
  • Influence of the structure of the amino group and polarity of the medium on the photophysical behavior of 4-amino-1,8-naphthalimide derivatives, S. Saha and A. Samanta, J. Phys. Chem. A 106 (2002) 4763.
  • Excited state structure of N-(4-cyanophenyl)carbazole by time-resolved infrared absorption spectroscopy, A. Samanta, S. Saha, H. Ishikawa and H. Hamaguchi, Chem. Letters (2002) 340.
  • Interaction between a pyridyl and a naphthyl/pyrenyl moiety in covalently linked systems, N.B. Sankaran, A. Das and A. Samanta, Chem. Phys. Lett. 351 (2002) 61.
  • Nature of the fluorescent state of N-arylcarbazole derivatives as derived from directly measured values of the excited state dipole moment, A.Samanta, S. Saha and R.W. Fessenden, J. Phys. Chem. A 105 (2001) 5438.
  • Phase transfer catalyst induced changes in the fluorescence behavior of some electron donor-acceptor molecules, R. Karmakar and A. Samanta, J. Am. Chem. Soc. 123 (2001) 3809.
  • Photochemical E (trans) Z (cis) isomerization in substituted 1-naphthyl acrylates, K. Mani Bushan, G.Venugopal Rao, T. Soujanya and V. Jayathirtha Rao, S. Saha and A. Samanta, J. Org. Chem. 66 (2001) 681.
  • How polar are room-temperature ionic liquids? S.N.V.K. Aki, J.F. Brennecke and A. Samanta, J. Chem. Soc. Chem. Commun. (2001) 413.
  • Unusually high fluorescence enhancement of structurally simple fluorophore-spacer-receptor systems induced by transition metal ions, B. Ramachandram, G. Saroja, N.B. Sankaran and A. Samanta, J. Phys. Chem. B 104 (2000) 11824.
  • Excited state dipole moment of PRODAN as determined from transient dielectric loss measurements, A. Samanta and R.W. Fessenden, J. Phys. Chem. A 104 (2000) 8972.
  • Excited state dipole moment of 7-aminocoumarins as determined from time-resolved microwave dielectric absorption measurements, A. Samanta and R.W. Fessenden, J. Phys. Chem. A 104 (2000) 8577.
  • Fluorescence signalling of transition metal ions by multi-component systems comprising 4-chloro-1,8-naphthalimide as fluorophore, B. Ramachandram, N.B. Sankaran, R. Karmakar, S. Saha and A. Samanta, Tetrahedron, 56 (2000) 7041.

From 1990 - 1999

From 1990 - 1999

  • The twisted structure of 9-(4-cyanophenyl)carbazole, S. Saha and A. Samanta, Acta Cryst. C55 (1999) 1299.
  • First simultaneous estimates of the water pool core size and the interfacial thickness of a cationic water in oil microemulsion by combined use of the chemical trapping and the time-resolved fluorescence quenching, P.K. Das, A. Chaudhuri, S. Saha and A. Samanta, Langmuir 15 (1999) 4765.
  • Fluorescence response of structurally simple fluorophore-spacer-receptor systems towards transition metal ions and protons, B. Ramachandram, N.B. Sankaran and A. Samanta, Res. Chem. Interm. 25 (1999) 843.
  • The fluorescence response of a structurally modified 4-aminophthalimide derivative covalently attached to a fatty acid in homogeneous and micellar environment, G. Saroja, B. Ramachandram, S. Saha and A. Samanta, J. Phys. Chem. B 103 (1999) 2906.
  • 4-Heptamethyleneimino-7-nitrobenzo-2-oxa-1,3-diazole, S. Saha and A. Samanta, Acta Cryst. C55 (1999) 252.
  • Transition metal ions induced fluorescence enhancement of 4-(N,N-dimethylamino)- 7-nitrobenz-2-oxa-1,3-diazole, B. Ramachandram and A. Samanta, J. Phys. Chem. A 102 (1998) 10579.
  • Photophysical and dynamic NMR studies on 4-amino-7-nitrobenz-2-oxa-1,3-diazole derivatives : Elucidation of the nonradiative deactivation pathway, S. Saha and A. Samanta, J. Phys. Chem. A 102 (1998) 7903.
  • How important is the quenching influence of the transition metal ions in the design of fluorescence PET sensors? B. Ramachandram and A. Samanta, Chem. Phys. Lett. 290 (1998) 9.
  • Hydrophobicity-induced aggregation of N-alkyl-4-aminophthalimides in aqueous media probed by solvatochromic fluorescence, G. Saroja and A. Samanta, J. Chem. Soc. Faraday Trans. 94 (1998) 3141.
  • 4-Aminophthalimide derivatives as environment sensitive probes, G. Saroja, T. Soujanya, B. Ramachandram and A. Samanta, J. Fluores. 8 (1998) 405.
  • Ground and excited state dipole moments of N,N′-bis(4-carbomethoxyphenyl) piperazine and its implications, G. Saroja, N. P. Rath and A. Samanta, J. Chem. Soc. J. Chem. Res. 1997, 332.
  • Modulation of metal - fluorophore communication to develop structurally simple fluorescent sensors for transition metal ions, B. Ramachandram and A. Samanta, J. Chem. Soc. Chem. Commun. (1997) 1037.
  • Photophysical behaviour of some pyrenylethylene derivatives and its implication on trans cis photoisomerisation reactions, V. Raj Gopal, V. Jayathirtha Rao, G. Saroja and A. Samanta, Chem. Phys. Lett. 270 (1997) 593.
  • An investigation of the triplet state properties of 1,8-naphthalimide: a laser flash-photolysis study, A. Samanta, B. Ramachandran and G. Saroja, J. Photochem. Photobiol. A: Chem. 101 (1996) 29.
  • Photophysical studies on a fluorescence probe labeled fatty acid : Chain folding in micellar environment, G. Saroja and A. Samanta, J. Chem. Soc. Faraday Trans. 92 (1996) 2697.
  • Photophysical study of two carbostyril dyes: Investigation of the possible role of a rotary decay mechanism, G. Saroja, N. B. Sankaran and A. Samanta, Chem. Phys. Lett. 249 (1996) 392.
  • Role of nonfluorescent twisted - intramolecular - charge - transfer state on the photophysical behavior of aminophthalimide dyes, T. Soujanya, R. W. Fessenden and A. Samanta, J. Phys. Chem. 100 (1996) 3507.
  • Polarity of the micelle-water interface as seen by 4-aminophthalimide, a solvent sensitive probe, G. Saroja and A. Samanta, Chem. Phys. Lett. 246 (1995) 506.
  • Excited state dipole moments of some coumarin dyes from a solvatochromic method using the solvent polarity parameter, ETN, M. Ravi, T. Soujanya, A. Samanta and T. P. Radhakrishnan, J. Chem. Soc. Faraday Trans. 91 (1995) 2739.
  • AM1 study of the twisted-intramolecular-charge-transfer phenomenon in p-(N,N- dimethylamino)benzonitrile, T. Soujanya, G. Saroja and A. Samanta, Chem. Phys. Lett. 236 (1995) 503.
  • Excited state dipole moments from an efficient analysis of solvatochromic Stokes shift data, M. Ravi, A. Samanta and T. P. Radhakrishnan, J. Phys. Chem. 98 (1994) 9133.
  • Dipole moment change of NBD group upon excitation studied using solvatochromic and quantum chemical approaches: Implications in membrane Research, S. Mukherjee, A. Chattopadhyay, A. Samanta and T. Soujanya, J. Phys. Chem. 98 (1994) 2809.
  • Steady state and time-resolved studies on the redox behaviour 1, 8-naphthalimide in the excited state, A. Samanta and G. Saroja, J. Photochem. Photobiol. A: Chem. 84 (1994) 19.
  • Facile electron transfer from aromatic triplets to polyaryl carbocations, A. Samanta, K. R. Gopidas and P. K. Das, Chem. Phys. Lett. 204 (1993) 269.
  • Carbocationic fluorescence and its efficient electron transfer quenching, A. Samanta, K. R. Gopidas and P. K. Das, J. Phys. Chem. 97 (1993) 1583.
  • Quenching of fullerene triplets by stable nitroxide radicals, A. Samanta and P. V. Kamat. Chem. Phys. Lett. 199 (1992) 635.
  • The nature of 4-aminophthalimide-cyclodextrin inclusion complexes, T. Soujanya, T. S. R. Krishna and A. Samanta, J. Phys. Chem. 96 (1992) 8544.
  • Effect of -cyclodextrin on intramolecular charge transfer emission of 4- aminophthalimide, T. Soujanya, T. S. R.Krishna and A. Samanta, J. Photochem. Photobiol. A: Chem. 66 (1992) 185.
  • Electronic and vibrational relaxation processes in aromatics: Picosecond time- resolved studies, A. Samanta, in "Solvation Dynamics & Charge Transfer Reactions" eds. B. Bagchi & V. Krishnan, World Scientific, Singapore, 1991, p 143.
  • Direct evidence for intersystem crossing involving higher excited states of acenaphthylene, A. Samanta, J. Am. Chem. Soc. 113 (1991) 7427.
  • Picosecond time-resolved absorption and emission studies of the excited singlet states of acenaphthylene, A. Samanta, C. Devadoss and R. W. Fessenden, J. Phys. Chem. 94 (1990) 7106.
  • Picosecond time-resolved absorption measurements on the excited singlet state of biphenylene, A. Samanta, C. Devadoss and R. W. Fessenden, Chem. Phys. Lett. 169 (1990) 421.
  • Electron acceptor behavior of 9-phenylxanthenium carbocation singlet, A. Samanta, K. R. Gopidas and P. K. Das, Chem. Phys. Lett. 167 (1990) 165.

From 1983 - 1989

From 1983 - 1989

  • Sensitized and heavy atom induced production of acenaphthylene triplet: A laser flash-photolysis study, A. Samanta and R. W. Fessenden, J. Phys. Chem. 93 (1989) 5823.
  • Fluorescence studies of furanoxy radicals: Intramolecular and intermolecular processes, K. Bhattacharyya, P. K. Das, R. W. Fessenden, M. V. George, K. R. Gopidas, H. Hiratsuka, G. L. Hug and A. Samanta, J. Am. Chem. Soc. 111 (1989) 3542.
  • Excited state deprotonation reactions of aromatic amines: A diffusion controlled process, N. Chattopadhyay, A. Samanta, T. Kundu and M. Chowdhury, J. Photochem. Photobiol. A: Chem. 48 (1989) 61.
  • Time-resolved nanosecond and picosecond absorption studies of 1-thiobenzoyl naphthalene, R. Minto, A. Samanta and P. K. Das, Can. J. Chem. 67 (1989) 967.
  • Quenching of excited doublet states of organic radicals by stable radicals, A. Samanta, K. Bhattacharyya, P. K. Das, P. V. Kamat, D. Weir and G. L. Hug, J. Phys. Chem. 93 (1989) 3651.
  • On the triplet lifetime and triplet-triplet absorption spectra of naphthaldehydes, A. Samanta and R. W. Fessenden, Chem. Phys. Lett. 153 (1988) 406.
  • One- and two-photon fluorescence excitation spectra of multi-chromophoric molecules, A. Samanta, T. Kundu and M. Chowdhury, J. Lumines. 40 & 41 (1988) 437.
  • Interaction of two π-electron systems: spectroscopy of 9, 10-dihydroanthracene, A. Samanta, K. Bhattacharyya and M. Chowdhury, J. Phys. Chem. 91 (1987) 4671.
  • Polarisation dependent two-photon spectra of triptycene, T. Kundu, D. Nath, A. Samanta and M. Chowdhury, Chem. Phys. Lett. 133 (1987) 507.
  • Reassignment of the electronic states of trans-dimer of acenaphthylene, A. Samanta, K. Bhattacharyya and M. Chowdhury, Spectrochim. Acta 42A (1986) 43.
  • n-n* fluorescence of pyridazinopyridazine, S. Ghosh, A. Samanta and M. Chowdhury, J. Ind. Chem. Soc. 62 (1985) 839.
  • Excited state proton transfer kinetics of carbazole, A. Samanta, N. Chattopadhyay, D. Nath, T. Kundu and M. Chowdhury, Chem. Phys. Lett. 121 (1985) 507.
  • Resonance second harmonic generation in rare-earth crystal: Gd-diglycolate, B. Karmakar, D. S. Ray, K. Bhattacharyya, A. Samanta and M. Chowdhury, Chem. Phys. Lett. 97 (1983) 545.