Publications

Ghosh S.; Ghosh M.; Kumar, P.; Sarkar A.S.; Pal, S. K..Quenching of the Excitonic Emission of ZnO Quantum Dots Due to Auger-Assisted Hole Transfer to CdS Quantum Dots " J. Phys. Chem C , No 2016 (Accepted)
Kumar, P.; Pal, S. K..Ultrafast Multiexponential Electron Injection Dynamics at Dye and ZnO QD Interface: A Combined Spectroscopic and First Principles Study. Phys. Chem. Chem. Phys., sept. 2016 (Accepted)
Kumar, P.; Pal, S. K..Femtosecond insights into direct electron injection in dye anchored ZnO QDs following charge transfer excitation. : Phys. Chem. Chem. Phys., 2016, 18, 20672.
Kumar S, Singh P, Kumar P, Srivastava R, Pal S.K, Ghosh S.Exploring an Emissive Charge Transfer Process in Zero-Twist Donor–Acceptor Molecular Design as a Dual-State Emitter. : J. Phys. Chem. C, 120 (23),2016, 12723.
Sarkar, A. S.;Kalyani, V.; Gonsalves, K. E.; Pradeep, C. P.; Pal, S. K.Ion mediated Charge Carrier Transport in a Novel Radiation Sensitive Polyoxometalate-Polymer Hybrid. : RSC Adv., 2016, 6, 44838
Sarkar, A. S.; Pal, S. K. Exponentially Distributed Trap-Controlled Space Charge Limited Conduction in Graphene Oxide Films J. Phys. D: Appl. Phys. 2015, 48, 445501.
Kumar, P.; Pal, S. K. Ab Initio Assessment of the Structural and Optoelectronic Properties of Organic-ZnO Nanoclusters J. Phys. Chem. A. 2015, 119, 10067.
Pal, S. K. Versatile photoluminescence from graphene and its derivatives Carbon 2015, 88, 86. (Review Article)
Kalyani, V.; Satyanarayana, V. S. V.; Sarkar, A. S.; Kumar, A.; Pal, S. K.; Ghosh, S.; Gonsalves, K. E.; Pradeep, C. P. A Radiation sensitive hybrid polymer based on an Mn-Anderson polyoxometalate cluster and a UV active organic monomer: synergistic effects lead to improved photocurrent in a photoresponse device RSC Adv. 2015, 5, 36727.
Kumar, P; Pascher, T; Tachiya, M.; Pal, S. K. Global analysis of quenching of the time-resolved emission of ZnO nanocrystals by adsorbed rhodamine B on the basis of Tachiya theory J. Photobiol. Photochem. A: Chem. 2015, 296, 35.
Chakraborti, H.; Pal, S. K. Assessment of amine functionalized graphene nanoflakes for anode materials in Li-Ion batteries: An ab initio study Chem. Phys. Lett. 2014, 600, 118.
Kumar, P.; Pal, S. K. Role of decoupled defect transitions of ZnO nanocrystals in energy transfer J. Photobiol. Photochem. A: Chem. 2014, 278, 46.
Chakraborti, H.; Bramhaiah, K.; John, N. S.; Pal, S. K. Excited state electron transfer from aminopyrene to graphene: a combined experimental and theoretical study Phys. Chem. Chem. Phys. 2013, 15, 19932.
Chakraborti, H.; Sinha, S; Ghosh, S; Pal, S. K. Interfacing water soluble nanomaterials with fluorescence chemosensing : graphene quantum dot to detect Hg2+ in 100% aqueous solution Mater. Lett. 2013, 97, 78–80.
Pal, S. K.; Mereshchenko, A. S.; Butaeva, E. V.; El-Khoury, P. Z.; Tarnovsky, A. N. Global sampling of the photochemical reaction paths of bromoform by ultrafast deep-UV through near-IR transient absorption and ab initio multiconfigurational calculations J. Chem. Phys. 2013, 138, 124501.
El-Khoury, P. et al. Towards Controlling Photochemical Reactivity in Small Polyatomic Molecules in Solution: Difluorodiiodomethane EPJ Web of Conferences 41, 05031 (2013).
Tarnovsky, A. N. et al. Short-Time Events, Coherence, and Structural Dynamics in Photochemistry of Aqueous Halogenated Transition Metal Dianions EPJ Web of Conferences 41, 05038 (2013).
Mereshchenko, A. S.; Pal, S. K.; Karabaeva, K. E.; El-Khoury, P.; Tarnovsky, A. N. Photochemistry of Monochloro Complexes of Copper(II) in Methanol Probed by Ultrafast Transient Absorption Spectroscopy J. Phys. Chem. A 2012, 116, 2791.
Pal, S. K.; Mereshchenko, A. S.; El-Khoury, P.; Tarnovsky, A. N. Femtosecond photolysis of CH2Br2 in acetonitrile: capturing the bromomethyl radical and bromine-atom charge transfer complex through deep-to-near UV probing Chem. Phys. Lett. 2011, 507, 69.
Pal, S. K.; Kesti, T.; Maiti, M.; Zhang, F.; Inganäs, O.; Hellström, S.; Andersson, M. R.; Oswald, F.; Langa, F.; Osterman, T.; Pascher, T.; Yartsev, A.; Sundström, V. Geminate Charge Recombination in Polymer/Fullerene Bulk Heterojunction Films and Implications for Solar Cell Function J. Am. Chem. Soc. 2010, 132, 12440.
El-Khoury, P.; Pal, S. K.; Mereshchenko, A. S.; Tarnovsky, A. N. The formation and back isomerization of iso-H2C-Br-Br on a 100-ps time scale following 255-nm excitation of CH2Br2 in acetonitrile Chem. Phys. Lett. 2010, 493, 61.
Pal, S. K.; Sundström, V.; Galoppini, E.; Persson, P. Calculations of Interfacial Interactions in Pyrene-Ipa Rod Sensitized Nanostructured TiO2 Dalton Trans. 2009, 10021.
Pal, S. K.; Bhattacharya, S.; Batabyal, S. K.; Ganguly, T. Role of TiO2 nanoparticles on the photoinduced intramolecular electron transfer reaction within a novel synthesized donor-acceptor system J. Photochem. Photobiol. A: Chem. 2007, 189, 86.
Mandal, P.; Sahu, T.; Misra, T.; Pal, S. K.; Ganguly, T. Experimental Investigations by using electrochemical, steady state and time resolved spectroscopic tools on the photoreactions of disubstituted indoles in presence of Tetracyanoquinodimethane (TCNQ) And a Theoretical Approach by Using Time-Dependent Density Functional Theory J. Photochem. Photobiol. A: Chem. 2007, 188, 235.
Ganguly, T.; Pal, S. K. Photoinduced electron transfer research to build model compounds of artificial photosynthesis and solar energy conversion (Review Article) J. Chin. Chem. Soc. 2006, 53, 219.
Pal, S. K.; Batabyal, S. K.; Ganguly, T. Preparation and photophysical properties of nanostructured 9-cyanoanthracene Chem. Phys. Lett. 2005, 406, 420.
Pal, S. K.; Sahu (nee Bhattacharya), T.; Misra, T.; Ganguly, T.; Pradhan, T. K.; De, A. Synthesis, characterization and laser flash photolysis studies of some naphthothiophenes bearing electron donor and acceptor functional groups J. Photochem. Photobiol. A: Chem. 2005, 174, 138.
Sahu (nee Bhattacharya), T.; Pal, S. K.; Misra, T.; Ganguly, T. Involvements of phenyldibenzophosphole and 9-phenylcarbazole in electron transfer reactions with photoexcited 9-cyanoanthracene J. Photochem. Photobiol. A: Chem. 2005, 171, 39.
Pal, S. K.; Sahu (nee Bhattacharya), T.; Misra, T.; Mallick, P. K.; Paddon-Row, M. N.; Ganguly, T. Experimental Investigation by Laser Flash Photolysis To Reveal the Optical and Electron-Donating Properties of Benzothiazole Derivatives and a Theoretical Approach by Using Time-Dependent Density Functional Theory J. Phys. Chem. A 2004, 108, 10395.
Bhattacharya, T.; Pal, S. K.; Misra, T.; Saini, R. D.; Ganguly, T. Primary electron-transfer dynamics in 2-phenylindole–9- cyanoanthracene system-A comparative study with 2-methylindole Spectrochim. Acta Part A 2004, 60, 1957.
Pal, S. K.; Bhattacharya, T.; Misra, T.; Saini, R. D.; Ganguly, T. Photophysics of Some Disubstituted Indoles and Their Involvements in Photoinduced Electron Transfer Reactions J. Phys. Chem. A 2003, 107, 10243.
Misra, T.; Bhattacharya, T.; Pal, S. K.; De, A.; Saini, R. D.; Ganguly, T. The fate of charge separation reactions within a novel synthesized bichromophore in b cyclodextrin microenvironment Chem. Phys. Lett. 2003, 382, 167.
Misra, T.; De, A. K.; Pal, S. K.; Bhattacharya, T.; Ganguly, T. Photophysical properties of 5-hydroxyindole (5HI): Laser flash photolysis study Proc. Indian Acad. Sci. (Chem. Sci.) 2002, 114, 547.

PRESENTATIONS IN CONFERENCES/ INSTITUTES

Poster:

Sarkar, A. S.; Saxena, P.; Gupta, A.; Nandi, C. K.; Gupta, V.; Chand, S.; Pal, S. K. Plasmonic modified graphene oxide interface layer for polymer photovoltaic devices in the Foundation day of NPL, New Delhi.
Sarkar, A. S.; Pal, S. K. Electrical conduction of as prepared and annealed multilayer graphene oxide thin films: A comparative study in the 8th India Singapore Symposium in Condensed Matter Physics, IIT Kanpur, February 25-27, 2015.
Kumar, P.; Pal, S. K. Ultrafast Charge Transfer in Dye Sensitized ZnO Quantum Dot in the International Conference on Frontiers of Spectroscopy, BHU, January 10-12, 2015.
Chakraborti, H.; Pal, S. K. Enhancement of Dye Emission in the Presence of Graphene Oxide in the National Fluorescence Workshop (FCS 2012), SINP and IICB Kolkata, December 3-7, 2012.
Kumar, P.; Pal, S. K. Quenching of Visible Photoluminescence of ZnO Nanocrystals by Rhodamine B in the National Fluorescence Workshop (FCS 2012), SINP and IICB Kolkata, December 3-7, 2012.
El-Khoury, P. et al. Towards Controlling Photochemical Reactivity in Small Polyatomic Molecules in Solution: Difluorodiiodomethane in the XVIIIth International Conference on Ultrafast Phenomena, 8 - 13 July 2012, Lausanne, Switzerland.
Tarnovsky, A. N. et al. Short-Time Events, Coherence, and Structural Dynamics in Photochemistry of Aqueous Halogenated Transition Metal Dianions in the XVIIIth International Conference on Ultrafast Phenomena, 8 - 13 July 2012, Lausanne, Switzerland.
Chakraborti, H.; Pal, S. K. Photoinduced Interactions Between Fluorescein Dye and Graphene in the National Symposium on Nanobiotechnology, IIT Mandi, June 1-2, 2012.
Kumar, P.; Pal, S. K. Quenching of Defect Emission of ZnO Quantum Dot in the Presence of Fluorescein Dye in the National Symposium on Nanobiotechnology, IIT Mandi, June 1-2, 2012.
Pal, S. K.; Pascher, T.; Yartsev, A.; Sundström, V. Fullerene Dependent Carrier Dynamics in Polymer/Fullerene Bulk Heterojunction Films in the National Symposium onRadiation & Photochemistry (NSRP – 2011), JNV University, Jodhpur, Rajasthan, March 10-12, 2011.
Pal, S. K.; El-Khoury, P.; Mereshchenko, A. S.; Tarnovsky, A. N. Ultrafast Photochemistry of bromoform in solution probed in the deep-UV to near–IR spectral rangein the 3rd Asia Specific Symposium on Radiation Chemistry and 10th Bienniel Trombay Symposium on Radiation and Photochemistry, Treasure Island Resorts, Lonavala, India, September 14-17, 2010.
Pal, S. K.; Pascher, T.; Yartsev, A.; Sundström, V. Dynamics of photogenerated charge carriers in polymer/fullerene blendsin the8th Nordic Femtochemistry Meeting, Fuglsø Conference Center, Denmark, 2-4 October, 2008.
Osterman, T; Pal, S. K.; Pascher, T.; Yartsev, A.; Sundström, V. Fluorescence studies of low-bandgap polyfullerene/PCBM blends: the mechanism of light-induced charge formationin STRUCTURAL DYNAMICS: METHODS AND APPLICATIONS at Algarve (Portugal), June 5-8, 2008.
Pal, S. K.; Ganguly, T. Photoinduced electron transfer reaction between a novel synthesized donor-acceptor system and TiO2 nanoparticles in the National Conference on Photosciences, Jadavpur University, Kolkata, India.
Pal, S. K.; Misra, T. Photophysics and electron donating properties of 5-hydroxyindole (5HI)inTrombay Symposium on Radiation and Photochemistry, Centaur Hotel, Juhu Beach, Mumbai, India, January 6-11, 2002.

Oral:

Time-Resolved Spectroscopic Studies on Photoexcited Processes in Composites of Graphene and Semiconductor Nanomaterials with Organic Molecules in the International Conference on Frontiers of Spectroscopy, BHU, January 10-12, 2015.
Photoinduced Processes in Graphene and Semiconductor Nanocrystals Based Materials: Spectroscopic and First-Principles Studies in the 8th Asian Photochemistry Conference, Tirvandram, November 10-13,2014.
Properties of Graphene Derivatives Relevant to Electronic Applications: Spectroscopic Studies in the National Workshop on Advanced Materials, IIT Mandi, May 27-28, 2014.
Chemically Tuned Graphene Oxide for Optoelectronic Applications in the Vidyasagar-Satyendranath Bose National Workshop 2014 on Physics of Advanced Optical Materials and Photonics, SOS University, Bhubaneswar, March 26-28, 2014.
Femtosecond transient absorption: a wonderful tool to study the dynamics of photovoltaic processes in the short term course on Introduction to Photonics and Its Applications, NIT Durgapur, July 29- August 02, 2013.
Organic Photovoltaic Materials in the Workshop on Current Challenges in Novel materials, IIT Mandi, April 27, 2012.
Plastic Solar Cells: Science, Expectations, and Challenges in the First In-House Symposium on Inter-Disciplinary Research and Development, IIT Mandi, May 7, 2011.
Charge carrier dynamics in conjugated polymer/fullerene bulk heterojunction films in the Centre for Energy Studies, IIT Delhi, February 18, 2011.
Ultrafast Photochemistry of bromoform in solution probed in the deep-UV to near –IR spectral range in the 65th OSU International Molecular Spectroscopy Symposium Department of Chemistry,The Ohio State University, Columbus, Ohio 43210 USA, June 21-25, 2010.
Life cycle of charges in conjugated polymer/fullerene blends in the Dept. of Optical Spectroscopy of Conjugated Materials, Max Planck Institute for Polymer Research, Mainz, Germany, January 16, 2009.
Enhancement of longevity of photogenerated charge separated species in b-Cyclodextrin microenvironment in the Fourth Asian Photochemistry Conference at Grand Hotel, Taipei, Taiwan, January 5-10, 2005.

PAL RESEARCH GROUP

Welcome to Pal Research Group

PUBLICATIONS

Ghosh S.; Ghosh M.; Kumar, P.; Sarkar A.S.; Pal, S. K..Quenching of the Excitonic Emission of ZnO Quantum Dots Due to Auger-Assisted Hole Transfer to CdS Quantum Dots " J. Phys. Chem C , No 2016 (Accepted)

Kumar, P.; Pal, S. K..Ultrafast Multiexponential Electron Injection Dynamics at Dye and ZnO QD Interface: A Combined Spectroscopic and First Principles Study. Phys. Chem. Chem. Phys., sept. 2016 (Accepted)

Kumar, P.; Pal, S. K..Femtosecond insights into direct electron injection in dye anchored ZnO QDs following charge transfer excitation. : Phys. Chem. Chem. Phys., 2016, 18, 20672.

Kumar S, Singh P, Kumar P, Srivastava R, Pal S.K, Ghosh S.Exploring an Emissive Charge Transfer Process in Zero-Twist Donor–Acceptor Molecular Design as a Dual-State Emitter. : J. Phys. Chem. C, 120 (23),2016, 12723.

Sarkar, A. S.;Kalyani, V.; Gonsalves, K. E.; Pradeep, C. P.; Pal, S. K.Ion mediated Charge Carrier Transport in a Novel Radiation Sensitive Polyoxometalate-Polymer Hybrid. : RSC Adv., 2016, 6, 44838

Sarkar, A. S.; Pal, S. K. Exponentially Distributed Trap-Controlled Space Charge Limited Conduction in Graphene Oxide Films J. Phys. D: Appl. Phys. 2015, 48, 445501.

Kumar, P.; Pal, S. K. Ab Initio Assessment of the Structural and Optoelectronic Properties of Organic-ZnO Nanoclusters J. Phys. Chem. A. 2015, 119, 10067.

Pal, S. K. Versatile photoluminescence from graphene and its derivatives Carbon 2015, 88, 86. (Review Article)

Kumar, P; Pascher, T; Tachiya, M.; Pal, S. K. Global analysis of quenching of the time-resolved emission of ZnO nanocrystals by adsorbed rhodamine B on the basis of Tachiya theory J. Photobiol. Photochem. A: Chem. 2015, 296, 35.

Chakraborti, H.; Pal, S. K. Assessment of amine functionalized graphene nanoflakes for anode materials in Li-Ion batteries: An ab initio study Chem. Phys. Lett. 2014, 600, 118.

Kumar, P.; Pal, S. K. Role of decoupled defect transitions of ZnO nanocrystals in energy transfer J. Photobiol. Photochem. A: Chem. 2014, 278, 46.

Chakraborti, H.; Bramhaiah, K.; John, N. S.; Pal, S. K. Excited state electron transfer from aminopyrene to graphene: a combined experimental and theoretical study Phys. Chem. Chem. Phys. 2013, 15, 19932.

Chakraborti, H.; Sinha, S; Ghosh, S; Pal, S. K. Interfacing water soluble nanomaterials with fluorescence chemosensing : graphene quantum dot to detect Hg2+ in 100% aqueous solution Mater. Lett. 2013, 97, 78–80.

Pal, S. K.; Mereshchenko, A. S.; Butaeva, E. V.; El-Khoury, P. Z.; Tarnovsky, A. N. Global sampling of the photochemical reaction paths of bromoform by ultrafast deep-UV through near-IR transient absorption and ab initio multiconfigurational calculations J. Chem. Phys. 2013, 138, 124501.

El-Khoury, P. et al. Towards Controlling Photochemical Reactivity in Small Polyatomic Molecules in Solution: Difluorodiiodomethane EPJ Web of Conferences 41, 05031 (2013).

Tarnovsky, A. N. et al. Short-Time Events, Coherence, and Structural Dynamics in Photochemistry of Aqueous Halogenated Transition Metal Dianions EPJ Web of Conferences 41, 05038 (2013).

Mereshchenko, A. S.; Pal, S. K.; Karabaeva, K. E.; El-Khoury, P.; Tarnovsky, A. N. Photochemistry of Monochloro Complexes of Copper(II) in Methanol Probed by Ultrafast Transient Absorption Spectroscopy J. Phys. Chem. A 2012, 116, 2791.

Pal, S. K.; Mereshchenko, A. S.; El-Khoury, P.; Tarnovsky, A. N. Femtosecond photolysis of CH2Br2 in acetonitrile: capturing the bromomethyl radical and bromine-atom charge transfer complex through deep-to-near UV probing Chem. Phys. Lett. 2011, 507, 69.

El-Khoury, P.; Pal, S. K.; Mereshchenko, A. S.; Tarnovsky, A. N. The formation and back isomerization of iso-H2C-Br-Br on a 100-ps time scale following 255-nm excitation of CH2Br2 in acetonitrile Chem. Phys. Lett. 2010, 493, 61.

Pal, S. K.; Sundström, V.; Galoppini, E.; Persson, P. Calculations of Interfacial Interactions in Pyrene-Ipa Rod Sensitized Nanostructured TiO2 Dalton Trans. 2009, 10021.

Pal, S. K.; Bhattacharya, S.; Batabyal, S. K.; Ganguly, T. Role of TiO2 nanoparticles on the photoinduced intramolecular electron transfer reaction within a novel synthesized donor-acceptor system J. Photochem. Photobiol. A: Chem. 2007, 189, 86.

Ganguly, T.; Pal, S. K. Photoinduced electron transfer research to build model compounds of artificial photosynthesis and solar energy conversion (Review Article) J. Chin. Chem. Soc. 2006, 53, 219.

Pal, S. K.; Batabyal, S. K.; Ganguly, T. Preparation and photophysical properties of nanostructured 9-cyanoanthracene Chem. Phys. Lett. 2005, 406, 420.

Pal, S. K.; Sahu (nee Bhattacharya), T.; Misra, T.; Ganguly, T.; Pradhan, T. K.; De, A. Synthesis, characterization and laser flash photolysis studies of some naphthothiophenes bearing electron donor and acceptor functional groups J. Photochem. Photobiol. A: Chem. 2005, 174, 138.

Sahu (nee Bhattacharya), T.; Pal, S. K.; Misra, T.; Ganguly, T. Involvements of phenyldibenzophosphole and 9-phenylcarbazole in electron transfer reactions with photoexcited 9-cyanoanthracene J. Photochem. Photobiol. A: Chem. 2005, 171, 39.

Bhattacharya, T.; Pal, S. K.; Misra, T.; Saini, R. D.; Ganguly, T. Primary electron-transfer dynamics in 2-phenylindole–9- cyanoanthracene system-A comparative study with 2-methylindole Spectrochim. Acta Part A 2004, 60, 1957.

Pal, S. K.; Bhattacharya, T.; Misra, T.; Saini, R. D.; Ganguly, T. Photophysics of Some Disubstituted Indoles and Their Involvements in Photoinduced Electron Transfer Reactions J. Phys. Chem. A 2003, 107, 10243.

Misra, T.; Bhattacharya, T.; Pal, S. K.; De, A.; Saini, R. D.; Ganguly, T. The fate of charge separation reactions within a novel synthesized bichromophore in b cyclodextrin microenvironment Chem. Phys. Lett. 2003, 382, 167.

Misra, T.; De, A. K.; Pal, S. K.; Bhattacharya, T.; Ganguly, T. Photophysical properties of 5-hydroxyindole (5HI): Laser flash photolysis study Proc. Indian Acad. Sci. (Chem. Sci.) 2002, 114, 547.

Sarkar, A. S.; Saxena, P.; Gupta, A.; Nandi, C. K.; Gupta, V.; Chand, S.; Pal, S. K. Plasmonic modified graphene oxide interface layer for polymer photovoltaic devices in the Foundation day of NPL, New Delhi.

Sarkar, A. S.; Pal, S. K. Electrical conduction of as prepared and annealed multilayer graphene oxide thin films: A comparative study in the 8th India Singapore Symposium in Condensed Matter Physics, IIT Kanpur, February 25-27, 2015.

Kumar, P.; Pal, S. K. Ultrafast Charge Transfer in Dye Sensitized ZnO Quantum Dot in the International Conference on Frontiers of Spectroscopy, BHU, January 10-12, 2015.

Chakraborti, H.; Pal, S. K. Enhancement of Dye Emission in the Presence of Graphene Oxide in the National Fluorescence Workshop (FCS 2012), SINP and IICB Kolkata, December 3-7, 2012.

Kumar, P.; Pal, S. K. Quenching of Visible Photoluminescence of ZnO Nanocrystals by Rhodamine B in the National Fluorescence Workshop (FCS 2012), SINP and IICB Kolkata, December 3-7, 2012.

El-Khoury, P. et al. Towards Controlling Photochemical Reactivity in Small Polyatomic Molecules in Solution: Difluorodiiodomethane in the XVIIIth International Conference on Ultrafast Phenomena, 8 - 13 July 2012, Lausanne, Switzerland.

Tarnovsky, A. N. et al. Short-Time Events, Coherence, and Structural Dynamics in Photochemistry of Aqueous Halogenated Transition Metal Dianions in the XVIIIth International Conference on Ultrafast Phenomena, 8 - 13 July 2012, Lausanne, Switzerland.

Chakraborti, H.; Pal, S. K. Photoinduced Interactions Between Fluorescein Dye and Graphene in the National Symposium on Nanobiotechnology, IIT Mandi, June 1-2, 2012.

Kumar, P.; Pal, S. K. Quenching of Defect Emission of ZnO Quantum Dot in the Presence of Fluorescein Dye in the National Symposium on Nanobiotechnology, IIT Mandi, June 1-2, 2012.

Pal, S. K.; Pascher, T.; Yartsev, A.; Sundström, V. Fullerene Dependent Carrier Dynamics in Polymer/Fullerene Bulk Heterojunction Films in the National Symposium onRadiation & Photochemistry (NSRP – 2011), JNV University, Jodhpur, Rajasthan, March 10-12, 2011.

Pal, S. K.; Pascher, T.; Yartsev, A.; Sundström, V. Dynamics of photogenerated charge carriers in polymer/fullerene blendsin the8th Nordic Femtochemistry Meeting, Fuglsø Conference Center, Denmark, 2-4 October, 2008.

Osterman, T; Pal, S. K.; Pascher, T.; Yartsev, A.; Sundström, V. Fluorescence studies of low-bandgap polyfullerene/PCBM blends: the mechanism of light-induced charge formationin STRUCTURAL DYNAMICS: METHODS AND APPLICATIONS at Algarve (Portugal), June 5-8, 2008.

Pal, S. K.; Ganguly, T. Photoinduced electron transfer reaction between a novel synthesized donor-acceptor system and TiO2 nanoparticles in the National Conference on Photosciences, Jadavpur University, Kolkata, India.

Pal, S. K.; Misra, T. Photophysics and electron donating properties of 5-hydroxyindole (5HI)inTrombay Symposium on Radiation and Photochemistry, Centaur Hotel, Juhu Beach, Mumbai, India, January 6-11, 2002.

Time-Resolved Spectroscopic Studies on Photoexcited Processes in Composites of Graphene and Semiconductor Nanomaterials with Organic Molecules in the International Conference on Frontiers of Spectroscopy, BHU, January 10-12, 2015.

Photoinduced Processes in Graphene and Semiconductor Nanocrystals Based Materials: Spectroscopic and First-Principles Studies in the 8th Asian Photochemistry Conference, Tirvandram, November 10-13,2014.

Properties of Graphene Derivatives Relevant to Electronic Applications: Spectroscopic Studies in the National Workshop on Advanced Materials, IIT Mandi, May 27-28, 2014.

Chemically Tuned Graphene Oxide for Optoelectronic Applications in the Vidyasagar-Satyendranath Bose National Workshop 2014 on Physics of Advanced Optical Materials and Photonics, SOS University, Bhubaneswar, March 26-28, 2014.

Femtosecond transient absorption: a wonderful tool to study the dynamics of photovoltaic processes in the short term course on Introduction to Photonics and Its Applications, NIT Durgapur, July 29- August 02, 2013.

Organic Photovoltaic Materials in the Workshop on Current Challenges in Novel materials, IIT Mandi, April 27, 2012.

Plastic Solar Cells: Science, Expectations, and Challenges in the First In-House Symposium on Inter-Disciplinary Research and Development, IIT Mandi, May 7, 2011.

Charge carrier dynamics in conjugated polymer/fullerene bulk heterojunction films in the Centre for Energy Studies, IIT Delhi, February 18, 2011.

Ultrafast Photochemistry of bromoform in solution probed in the deep-UV to near –IR spectral range in the 65th OSU International Molecular Spectroscopy Symposium Department of Chemistry,The Ohio State University, Columbus, Ohio 43210 USA, June 21-25, 2010.

Life cycle of charges in conjugated polymer/fullerene blends in the Dept. of Optical Spectroscopy of Conjugated Materials, Max Planck Institute for Polymer Research, Mainz, Germany, January 16, 2009.

Enhancement of longevity of photogenerated charge separated species in b-Cyclodextrin microenvironment in the Fourth Asian Photochemistry Conference at Grand Hotel, Taipei, Taiwan, January 5-10, 2005.