Faculty Directory

Prof. H. N. Ghosh

Professor (Scientist-G)

Ultrafast Photochemistry and Reaction Dynamics in solution phase and on nanostructured materials. Design and Development of Ultrafast Laser Laboratory.


Research Interest

  • Ultrafast Photochemistry and Reaction Dynamics in solution phase and on nanostructured materials.

  • Design and Development of Ultrafast Laser Laboratory
  • Ultrafast charge carrier and interfacial electron and hole transfer dynamics in nanostructured and quantum dot core-shell materials using femtosecond visible, infrared and terahertz spectroscopy.
  • Synthesis, characterization and spectroscopic Analysis of alloy and doped quantum dot materials.
  • Ultrafast Proton Coupled Electron Transfer reaction
  • Working on the Mechanism of Dye-sensitized, Perovskite and Quantum Dot Solar Cell using Fast and Ultrafast spectroscopic Techniques.
  • Design and Development of Dye-sensitized Solar Cell and Quantum Dot Solar Cell.

Research Highlights

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PhD Students

  • Mr. Soumen Ash

    Email: soumen.ph14201@inst.ac.in

    Reg. No.: PH14201

    Working Since Aug, 2014
  • Mr. Himanshu Bhatt

    Email: himanshu.ph19216@inst.ac.in

    Reg. No.: PH19216

    Working Since Aug, 2019
  • Ms. Ayushi Shukla

    Email: ayushi.ph18205@inst.ac.in

    Reg. No.: PH18205

    Working Since Aug, 2018
  • Ms. Arshdeep Kaur

    Email: arshdeep.ph18206@inst.ac.in

    Reg. No.: PH18206

    Working Since Aug, 2018
  • Ms.Gurpreet kaur

    Email: gurpreet.ph17205@inst.ac.in

    Reg. No.: PH17205

    Working Since Aug, 2017

    Email: nandan.ph16236@inst.ac.in

    Reg. No.: Ph16236

    Working Since Jan, 2017
  • Mr. Navneet Singh Giran

    Email: navneet.ph19219@inst.ac.in

    Reg. No.: PH19219

    Working Since Aug, 2019

    Email: tanmay.ph17208@inst.ac.in

    Reg. No.: PH17208

    Working Since Aug, 2017

Post Doc Fellows

  • Dr Dharmendra Kumar

    Email: dharmendra.pdf2001@inst.ac.in

    Reg. No.: PDF2001

    Working Since Jan, 2020
  • Dr K. Justice Babu

    Email: jjjustice.chem@gmail.com

    Reg. No.: NPDF2001

    Working Since Jan, 2020

Post Doc Fellows


    Email: palwinder1263@gmail.com

    Reg. No.: PDF1901

  1. An Experimental and Theoretical Study into Interface Structure and Band Alignment of the Cu2Zn1-xCdxSnS4 Heterointerface for Photovoltaic Applications: Sachin R. Rondiya, Yogesh Jadhav, Nelson Y. Dzade, Raihan Ahammed, Tanmay Goswami, Abir De Sarkar, Sandesh Jadkar, Santosh K. Haram, Hirendra N. Ghosh, (2020) ACS Applied Energy Materials, . DOI: 10.1021/acsaem.9b02314

  2. Impact of one step alloying on the carrier relaxation and charge separation dynamics of CdxZn1-xSe graded nanocrystals: Hirendra N. Ghosh,Partha Maity,Nandan Ghorai,Jayanta Dana, (2020) Journal of Photochemistry and Photobiology A: Chemistry, 388: 112131. DOI: doi.org/10.1016/j.jphotochem.2019.112131

  3. Ultrafast Plasmon Dynamics and Hole–Phonon Coupling in NIR Active Nonstoichiometric Semiconductor Plasmonic Cu2–xS Nanocrystals: Nandan Ghorai,Hirendra N. Ghosh, (2019) The Journal of Physical Chemistry C, 123: 28401-28410. DOI: doi.org/10.1021/acs.jpcc.9b10043

  4. Strategies for extending charge separation in colloidal nanostructured quantum dot materials: Partha Maity,Hirendra N. Ghosh, (2019) Physical Chemistry Chemical Physics, 21: 23283-23300. DOI: https://doi.org/10.1039/C9CP03551F

  5. Ternary Metal Chalcogenides: Into the Exciton and Biexciton Dynamics: Tushar Debnath,Hirendra N. Ghosh, (2019) The journal of physical chemistry letters, 10: 6227-6238. DOI: doi.org/10.1021/acs.jpclett.9b01596

  6. Efficient Photosensitizing Capabilities and Ultrafast Carrier Dynamics of Doped Carbon Dots: Soman Mandal,Anna Yucknovsky,Katherine Akulov,Nandan Ghorai,Tal Schwartz,Hirendra N Ghosh,Nadav Amdursky, (2019) Journal of the American Chemical Society, 141: 15413-15422. DOI: doi.org/10.1021/jacs.9b08071

  7. Hydrogen bond assisted photoinduced intramolecular electron transfer and proton coupled electron transfer in an ultrafast time domain using a ruthenium-anthraquinone dyad: Ananta Dey,Jayanta Dana,Sunul Aute,Amitava Das,Hirendra N. Ghosh, (2019) Photochemical & Photobiological Sciences, 18: 2430-2441. DOI: doi.org/10.1039/C9PP00135B

  8. Correlating Charge‐Carrier Dynamics with Efficiency in Quantum‐Dot Solar Cells: Can Excitonics Lead to Highly Efficient Devices?: Sourav Maiti,Jayanta Dana,Hirendra N. Ghosh, (2019) Chemistry–A European Journal, 25: 692-702. DOI: https://doi.org/10.1002/chem.201801853

  9. Ultrafast Carrier Dynamics of the Exciton and Trion in MoS2 Monolayers Followed by Dissociation Dynamics in Au@MoS2 2D Heterointerfaces: Tanmay Goswami, Renu Rani, Kiran Shankar Hazra,Hirendra N Ghosh*, (2019) The journal of physical chemistry letters, 10: 3057-3063.

  10. Recent Progress of Electron Storage Mn Center in Doped Nanocrystals: Tushar Debnath,Hirendra N. Ghosh, (2019) The Journal of Physical Chemistry C, 123: 10703−10719. DOI: doi.org/10.1021/acs.jpcc.8b11055

  11. Efficient charge transport in surface engineered TiO2 nanoparticulate photoanodes leading to improved performance in quantum dot sensitized solar cells: Sourav Maiti,F. Azlan,Y. Jadhav,J. Dana,P. Anand,S. K. Haram,G. R. Dey,Hirendra N. Ghosh, (2019) Solar Energy, 181: 195-202. DOI: doi.org/10.1016/j.solener.2019.02.001

  12. Hot Charge Carriers in QuantumDots: Generation, Relaxation, Extraction, and Applications: Pallavi Singhal,Hirendra N. Ghosh, (2019) Chem Nano Mat, 5: 985 –999. DOI: doi.org/10.1002/cnma.201900025

  13. Impact of FRET between Molecular Aggregates and Quantum Dots: Partha Maity,T. Gayathri,Jayanta Dana,S. P. Singh,Hirendra N. Ghosh, (2019) Chemistry–An Asian Journal, 14: 597-605. DOI: doi.org/10.1002/asia.201801688

  14. Improving the Power Conversion Efficiency through alloying in Common Anion CdZnX (X=S, Se) Nanocrystal Sensitized Solar Cells: Sourav Maiti,Pranav Anand,Farazuddin Azlan,Jayanta Dana,Hirendra N. Ghosh, (2019) Chem Phys Chem, 20: 2662– 2667. DOI: doi.org/10.1002/cphc.201900379

  15. S2 and mixed aggregate state emission of thiophene-BODIPY: Partha Maity,T Gayathri,Jayanta Dana,S. P. Singh,Hirendra N. Ghosh, (2019) Journal of Photochemistry and Photobiology A: Chemistry, 368: 147-152. DOI: doi.org/10.1016/j.jphotochem.2018.09.037

  16. Hot Charge Carrier Extraction from Semiconductor Quantum Dots: P. Singhal,Hirendra N. Ghosh, (2018) J. Phys. Chem. C, 122: 17586−17600. DOI: https://doi.org/10.1021/acs.jpcc.8b03980

  17. Solar Conversion Efficiency Performance of a High Temperature Alloy over a Low Temperature One: Comprehending Interfaces through Excitonics Study: T. Debnath, K. Parui, S. Maiti, (2018) J. Phys. Chem. C, 122: 11312−11321. DOI: https://doi.org/10.1021/acs.jpcc.8b03502

  18. Concurrent Ultrafast Electron- and Hole-Transfer Dynamics in CsPbBr3 Perovskite and Quantum Dots: J. Dana, P. Maity, B. Jana, S. Maiti, (2018) ACS Omega, 3: 2706−2714. DOI: https://doi.org/10.1021/acsomega.8b00276

  19. Boosting the Efficiency of Quantum Dot-Sensitized Solar Cells through Formation of the Cation-Exchanged Hole Transporting Layer: S. Maiti, F. Azlan, P. Anand, Y. Jadhav, J. Dana, S. K. Haram, (2018) Langmuir, 34: 50−57. DOI: https://doi.org/10.1021/acs.langmuir.7b02659

  20. Direct Correlation of Excitonics with Efficiency in a Core–Shell Quantum Dot Solar Cell: J. Dana, S. Maiti, V. S. Tripathi, (2018) Chem. Eur. J, 24: 2418 – 2425. DOI: https://doi.org/10.1002/chem.201705127

  21. Inhibiting Interfacial Charge Recombination for Boosting Power Conversion Efficiency in CdSe{Au} Nanohybrid Sensitized Solar Cell: J. Dana, P. Anand, S. Maiti, F. Azlan, Y. Jadhav, S. K. Haram, (2018) J. Phys. Chem. C, 122: 13277−13284. DOI: https://doi.org/10.1021/acs.jpcc.7b08448

  22. Electrochemical Evaluation of Dopant Energetics and the Modulation of Ultrafast Carrier Dynamics in Cu-Doped CdSe Nanocrystals: S. Maiti, J. Dana, Y. Jadhav, T. Debnath, S. K. Haram, (2017) J. Phys. Chem. C, 121: 27233−27240. DOI: https://doi.org/10.1021/acs.jpcc.7b10262

  23. Exciton Dynamics and Formation Mechanism of MEH-PPV Polymer- Based Nanostructures: A. Ghosh, B. Jana, S. Chakraborty, S. Maiti,A. Patra, (2017) J. Phys. Chem. C, 121: 21062−21072. DOI: https://doi.org/10.1021/acs.jpcc.7b08336

  24. Electron-Transfer-Mediated Uranium Detection Using Quasi-Type II Core−Shell Quantum Dots: Insight into Mechanistic Pathways: P. Singhal, S. K. Jha, B. Govind Vats, (2017) Langmuir, 33: 8114−8122. DOI: https://doi.org/10.1021/acs.langmuir.7b00926

  25. Carrier relaxation dynamics in type-II ZnO/CdSe quantum dot heterostructures: S. Verma, (2017) Phys. Chem. Chem. Phys., 19: 24896--24902. DOI: 10.1039/C7CP04069E

  26. Metal–Ligand Complex-Induced Ultrafast Charge-Carrier Relaxation and Charge-Transfer Dynamics in CdX (X=S, Se, Te) Quantum Dots Sensitized with Nitrocatechol: P. Singhal, P. Maity, S. K. Jha, (2017) Chem. Eur. J., 23: 10590 – 10596. DOI: https://doi.org/10.1002/chem.201701271

  27. Light Harvesting and Photocurrent Generation in
a Conjugated Polymer Nanoparticle–Reduced Graphene Oxide Composite: A. Ghosh, B. Jana, S. Maiti, R. Bera,Amitava Patra, (2017) ChemPhysChem, 18: 1308 – 1316. DOI: https://doi.org/10.1002/cphc.201700174

  28. Hot-electron transfer from the semiconductor domain to the metal domain in CdSe@CdS{Au} nano-heterostructures: J. Dana, P. Maity, (2017) Nanoscale, 9: 9723–9731. DOI: 10.1039/C7NR02232H

  29. Tuning Hole and Electron Transfer from Photoexcited CdSe Quantum Dots to Phenol Derivatives: Effect of Electron-Donating and -Withdrawing Moieties: T. Debnath, D. Sebastian, S. Maiti, (2017) Chem. Eur. J., 23: 7306 – 7314. DOI: https://doi.org/10.1002/chem.201700166

  30. Exciton Separation in CdS Supraparticles upon Conjugation with Graphene Sheets: K. Ojha, T. Debnath, P. Maity, M. Makkar, S. Nejati, K. V. Ramanujachary, P. K. Chowdhury,Ashok Kumar Ganguli, (2017) J. Phys. Chem, 121: 6581−6588. DOI: https://doi.org/10.1021/acs.jpcc.7b01150

  31. Demonstrating the role of anchoring functionality in interfacial electron transfer dynamics in the newly synthesized BODIPY–TiO nanostructure Composite: S. Aute, P. Maity, A. Das, (2017) NewJ.Chem, 41: 5215--5224. DOI: 10.1039/C7NJ00668C

  32. An Insight into the Interface through Excited-State Carrier Dynamics for Promising Enhancement of Power Conversion Efficiency in a Mn-Doped CdZnSSe Gradient Alloy: T. Debnath, K. Parui, S. Maiti, (2017) Chem. Eur. J, 23: 3755 – 3763. DOI: https://doi.org/10.1002/chem.201605612

  33. Proton-Coupled Electron-Transfer Processes in Ultrafast Time Domain: Evidence for Effects of Hydrogen-Bond Stabilization on Photoinduced Electron Transfer: A. Dey, J. Dana, S. Aute, P. Maity, A. Das, (2017) Chem. Eur. J., 23: 3455 – 3465. DOI: https://doi.org/10.1002/chem.201605594

  34. Elucidating the Electronic Cross Talk Dynamics Across the Hetero-Interface of Janus CdSe/PbSe Nanocrystals: Sourav Maiti, Tushar Debnath, (2016) J. Phys. Chem. C, 120: 29054–29061. DOI: https://doi.org/10.1021/acs.jpcc.6b11993

  35. Intraband Electron Cooling Mediated Unprecedented Photocurrent Conversion Efficiency of CdSxSe1-x Alloy QDs: Direct Correlation between Electron Cooling and Efficiency: Partha Maity, Sourav Maiti, Tushar Debnath, Jayanta Dana, S. Guin, (2016) Journal of Physical Chemistry C, 120: 21309−21316. DOI: https://doi.org/10.1021/acs.jpcc.6b07876

  36. Involvement of Sub-bandgap States in Sub-picosecond Exciton and Bi-exciton Dynamics of Ternary AgInS2 Nanocrystals: Jayanta Dana, Tushar Debnath, (2016) J. Phys. Chem. Lett., 7: 3206−3214. DOI: https://doi.org/10.1021/acs.jpclett.6b01341

  37. tiple Charge Transfer Dynamics in CsPbBr3 Perovskite Quantum Dots Sensitized Molecular Adsorbate: P. Maity, J. Dana, (2016) J. Phys. Chem. C, 120: 18348−18354. DOI: https://doi.org/10.1021/acs.jpcc.6b06853

  38. Unusually Slow Electron Cooling to Charge Transfer State in Gradient CdTeSe Alloy Nanocrystals Mediated Through Mn Atom: Tushar Debnath, Sourav Maiti, (2016) J. Phys. Chem. Lett., 7: 1359−1367. DOI: https://doi.org/10.1021/acs.jpclett.6b00348

  39. Plasmon Induced Enhancement of Charge Separation in Epitaxial Metal- Semiconductor Nanohybrid Material Anchored with an Organic Molecule: J. Dana, T. Debnath, P.Maity, (2015) J. Phys. Chem. C, 119: 22181–22189. DOI: https://doi.org/10.1021/acs.jpcc.5b06055

  40. Sub-picosecond Exciton Dynamics and Bi-excitonic Feature in Colloidal CuInS2 Nanocrystals: Role of In-Cu Antisite Defects: Tushar Debnath, Sourav Maiti, Partha Maity, (2015) J. Phys. Chem. Lett., 6: 3458−3465. DOI: https://doi.org/10.1021/acs.jpclett.5b01767

  41. Cascading Electron and Hole Transfer Dynamics in CdS/CdTe Core-Shell Sensitized Bromo-Pyrogallol Red (Br-PGR): Slow Charge Recombination in Type II Regime: Partha Maity,Tushar Debnath, Uday Chopra, (2015) Nanoscale, 7: 2698–2707. DOI: https://doi.org/10.1039/c4nr05829a

  42. Slow Electron Cooling Dynamics Mediated by Electron-Hole Decoupling in Highly Luminescent CdSxSe1-x Alloy Quantum Dots: Partha Maity, Tushar Debnath, (2015) J. Phys. Chem. C, 119: 10785–10792. DOI: https://doi.org/10.1021/acs.jpcc.5b03603

  43. Hot Hole Extraction from Quantum Dot to Molecular Adsorbate: Pallavi Singhal, (2015) Chem. Eur. J., 21: 4405 – 4412. DOI: https://doi.org/10.1002/chem.201405947

  44. Ultrafast Hole/Electron Transfer Dynamics in CdSe Quantum Dot Sensitized by Pyrogallol red (PGR): A Super-Sensitization System: Pallavi Singhal, (2014) J. Phys. Chem. C, 118: 16358–16365. DOI: https://doi.org/10.1021/jp408727a

  45. Electron Trap to Electron Storage Conversion of Specially Aligned Mn doped CdSe d-Dot: A Step Ahead on the Design of Higher Efficient Quantum Dot Sensitized Solar Cell: Tushar Debnath,Partha Maity,Sourav Maiti, (2014) J. Phys. Chem. Lett., 5: 2836−2842.. DOI: https://doi.org/10.1021/jz5012719

  46. Tuning Interfacial Charge Separation by Molecular Twist: A New Insight into Coumarin Sensitized TiO2 Film: S. Verma, (2014) J. Phys. Chem. C, 118: 10661–10669. DOI: https://doi.org/10.1021/jp5023696

  47. Ultrafast Hole and Electron Transfer Dynamics in CdS/Di-bromofluorescein (DBF) Super-Sensitized Quantum Dot Solar Cell Materials: Partha Maity,Tushar Debnath, (2013) J. Phys. Chem. Lett., 4: 4020−4025.. DOI: https://doi.org/10.1021/jz402315p

  48. Exciton Energy and Charge Transfer in Porphyrin Aggregate/Semiconductor (TiO2) composites: S. Verma, (2012) J. Phys. Chem. Lett. (Perspective), 3: 1877−1884. DOI: https://doi.org/10.1021/jz300639q

  49. Sequential Energy and Electron Transfer in Polynuclear Metal Complex Sensitized TiO2 Nanoparticle: S. Verma,P. Kar, T. Banerjee, A. Das, (2012) J. Phys. Chem. Lett, 3: 1543−1548. DOI: https://doi.org/10.1021/jz3005305

  50. Ultrafast Relaxation Dynamics in Graphene Oxide: Evidence of Electron Trapping, S. Kaniyankandy: S. N. Achary,S. Rawalekar, (2011) J. Phys. Chem. C, 115: 19110-19116. DOI: https://doi.org/10.1021/jp206923q

  51. Employing a Photosynthetic Antenna Complex to Interfacial Electron Transfer on ZnO Quantum Dot: J. K. Sainis,Alka Gupta,Sandeep Verma, (2011) J. Phys. Chem. Letter, 2: 858–862.. DOI: https://doi.org/10.1021/jz2002474

  52. Ultrafast Carrier Relaxation and Charge Transfer Dynamics in Water Soluble CdTe/CdS Core-Shell Quantum Dots as Studied by Femtosecond Transient Absorption Spectroscopy: S. Rawalekar,S. Kaniyankandy, S. Verma,E.ali, (2010) J. Phys. Chem. C, 114: 1460–1466. DOI: https://doi.org/10.1021/jp909118c

  53. Ultrafast electron transfer dynamics from molecular adsorbates to semiconductor nanocrystalline thin films: John B Asbury, Encai Hao, Yongqiang Wang, Hirendra N Ghosh, Tianquan Lian, (2001) 105: 4545-4557. DOI: 10.1021/jp003485m

  54. Femtosecond IR Study of Excited-State Relaxation and Electron-Injection Dynamics of Ru(dcbpy)2(NCS)2 in Solution and on Nanocrystalline TiO2 and Al2O3 Thin Films: John B Asbury, Randy J Ellingson, Hirendra N Ghosh, Suzanne Ferrere, Arthur J Nozik, Tianquan Lian, (1999) The Journal of Physical Chemistry B, 103: 3110-3119. DOI: 10.1021/jp983915x

  55. Dynamics of Electron Injection in Nanocrystalline Titanium Dioxide Films Sensitized with [Ru(4,4‘-dicarboxy-2,2‘-bipyridine)2(NCS)2] by Infrared Transient Absorption: Randy J Ellingson, John B Asbury, Sue Ferrere, Hirendra N Ghosh, Julian R Sprague, Tianquan Lian, Arthur J Nozik, (1998) The Journal of Physical Chemistry B, 102: 6455-6458. DOI: 10.1021/jp982310y


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  • 1996


    University of Bombay, Mumbai, India

  • 1989


    Indian Institute of Technology, Kharagpur, India

  • Professor (Scientist-G):Institute of Nano Science & Technology, Mohali, India (January 2017 to Present till date )

  • Scientific Officer (H+):Bhabha Atomic Research Centre, Mumbai (July 2016 to January 2017 )

  • Scientific Officer (H):Bhabha Atomic Research Centre, Mumbai (August 2013 to July 2017 )

  • Scientific Officer (G):Bhabha Atomic Research Centre, Mumbai (August 2008 to July 2013 )

  • Scientific Officer (F):Bhabha Atomic Research Centre, Mumbai (August 2003 to July 2008 )

  • Scientific Officer (E):Bhabha Atomic Research Centre, Mumbai (August 1998 to July 2003 )

  • Scientific Officer (D):Bhabha Atomic Research Centre, Mumbai (August 1993 to July 1998 )

  • Scientific Officer (C):Bhabha Atomic Research Centre, Mumbai (August 1990 to July 1993 )

Awards & Honours

  • Recipient of INSA Medal for Young Scientists from Indian National Science Academy, New Delhi.

  • Recipient of A.K. Bose Memorial Award from Indian National Science Academy, New Delhi.

  • Post Doctoral Research Fellowship in Chemistry Department, Emory University, Atlanta, USA for 2 years (1997-1998).

  • Recipient of APA-Prize for Young Scientist from The Asian and Oceanian Photochemistry Association.

  • Fellow of National Academy of Science (F. N. A. Sc.), Allahabad, India

  • Recipient of Homi Bhabha Science & Technology Award from Department of Atomic Energy (DAE), India.

  • Recipient of CRSI Bronze Medal  from Chemical Research Society of India, Bangalore.

  • Recipient of “DAE-SRC Outstanding Investigator Award” for the year 2012 from Department of Atomic Energy (DAE), India.

  • Fellow of Academy of Science (F.A.Sc.), Bangalore, India

  • Recipient of “C. N. R. Rao National Prize for Chemical Research” in the year 2014 from Chemical Research Society of India, Bangalore.

  • Member of Advisory Editorial Board of Chemical Physics

  • Fellow of Indian National Science Academy (F.N.A.), New Delhi, India 

  • Member of Advisory Editorial Board of Journal of Physical Chemistry (A/B/C) and Journal of Physical Chemistry

  • Recipient of “J C Bose National Fellowship” in the year 2019 from Science and Engineering Research Board, DST, New Delhi.

Professional Recognitions