Associate Professor

Dr Sabyasachi Mukhopadhyay

Department of Physics


  1. Optoelectronic Materials
  2. Molecular Electronics
  3. Atomic Force Microscopy



University of Calutta


Indian Institute of Technology Kharagpur


Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Bangalore


  • December 2012 - December 2016, Postdoctoral Fellow | Weizmann Institute of Science, Israel
  • April 2015, Visiting Scientist | Innovation Lab GmbH, Heidelberg, Germany
  • November – December 2012, Visiting Research Associate | Surface Physics and Materials Science Division, Saha Institute of Nuclear Physics, Bidhannagar, Kolkata, India
  • June – October 2012, Senior Research Support Specialist | State University of New York, Albany, USA
  • December 2010 – March 2011, Academic Consultant | (JNCASR part) with Shell (India) Pvt. Ltd
  • July 2009, Academic-Industrial visitor | Nanonics Imaging Inc., Israel

Research Interest

  • Development of low-cost molecular junctions and their electrical characterization
  • Electron transport mechanism across molecular junctions
  • Electrical transport across single molecular junction
  • Development of advanced scanning probe microscope

Awards & Fellowships

  • 2013, Postdoctoral Research Fellowship, PBC Program, Council for Higher Education, Israel
  • 2013, Best poster award, IUMRS-ICA, Bangalore, India
  • 2010, Best student presentation award,11th International Conference on Near Field Optics, Nanophotonics and related Techniques (NFO11), Beijing, China


  • Member of Optical society of America

List of Publications

  • Kunchanapalli Ramya, Sabyasachi Mukhopadhyay and Mahesh Kumar Ravva A DFT study of the Relationship between Molecular Structure and Electron Transport in Molecular Junctions, Journal of Electronic Materials. 52, 1615 (2023) IF: 2.09.
  • Kunchanapalli Ramya, Sabyasachi Mukhopadhyay, Modulation of optoelectronic and mechanical properties across (bio) molecular junctions under external stimuli, Journal of Electronic Materials 52,1609 (2023) IF: 2.09.
  • Deepak Aloysius, Arindam Mondal, Satyajit Gupta, Eran Edri and Sabyasachi Mukhopadhyay, Effect of formamidinium (FA) ions on mixed ‘A’-site based bromide perovskite (APbBr3) thin films, New Journal of Chemistry 46, 22229 (2022) IF: 3.925.
  • Kunchanapalli Ramya, Arindam Mondal, Satyajit Gupta, and Sabyasachi Mukhopadhyay, Asymmetrical Electrical Performance across Different Planes of Solution-Grown MAPbBr3 Crystals of mm Dimensions, ACS Omega 46, 42138 (2022) IF: 3.512.
  • Kunchanapalli Ramya, Arindam Mondal, Mohit Tyagi, Satyajit Gupta, Sabyasachi Mukhopadhyay, Room-temperature cost-effective in-situ grown MAPb crystals and their characterization towards optoelectronic devices, Materials Science and Engineering B 283, 115840 (2022) IF: 4.051.
  • Ashwini Nawade, Kumar Babu Busi, Kunchanapalli Ramya, Goutam Kumar Dalapati, Sabyasachi Mukhopadhyay, and Sabyasachi Chakraborty, Improved Charge Transport across Bovine Serum Albumin – Au Nanoclusters Hybrid Molecular Junction, ACS Omega 24, 20906 (2022) IF: 3.512.
  • Ashwini Nawade, Imran Pancha, Sabyasachi Mukhopadhyay, Electron Transport across Phycobiliprotein Films and Its Optoelectronic Properties, ECS Journal of Solid-State Science and Technology 11, 045004 (2022) IF: 2.07.
  • Ashwini Nawade Kunchanapalli Ramya, Sabyasachi Chakrabortty, Priyanka Bamola, Himani Sharma, Mohit Sharma, Krishnendu Chakraborty, Seeram Ramakrishna, Sajal Biring, Terence Kin Shun Wong, Avishek Kumar, Sabyasachi Mukhopadhyay, Goutam Kumar Dalapati, Copper-based transparent solar heat-rejecting film on glass through in-situ nanocrystal engineering of sputtered TiO2, Ceramics International 48, 2482 (2022) IF: 5.532.
  • G. Dalapati, H. Sharma, A. Guchhait, P. Bamola, S. ZHUK, Q. N. Liu, S. Gopalan, A. M. Sai Krishna, Sabyasachi Mukhopadhyay, A. Dey, T. K. Wong, N. Chakrabarty, S. Ghosh, S. Chakrabortty, C. Mahata, S. Biring, A. Kumar, C. S. Ribeiro, S.Ramakrishna, A. K. Chakraborty, S. Krishnamurthy, P. M. Sonar and M. Sharma, Tin Oxide for Optoelectronics, Photovoltaic, and Energy Storage Devices, A review Journal of Materials Chemistry A 9, 16621 (2021) IF: 14.511.
  • Ramya, K.; Sabyasachi Mukhopadhyay, Effect of External Mechanical Force on the Molecule–Electrodes Electronic Coupling in (bio)-molecular Junctions, Journal of Materials Science: Materials in Electronics (2021) IF: 2.478.
  • Sabyasachi Mukhopadhyay; Ramakrishna, S.; Kumar, A.; Dalapati G. K, A Numerical Fitting-Based Compact Model: An Effective Way to Extract Solar Cell Parameters, Journal of Electronic Materials 50, 1590 (2021) IF: 1.938.
  • Ramya, K.; Sabyasachi Mukhopadhyay, Molecule–Electrode Electronic Coupling Modulates Optoelectronics of (Bio) Molecular Junctions Journal of Electronic Materials 50, 1573 (2021) IF: 1.938.
  • Sabyasachi Mukhopadhyay,; Karuppannan, S. K.; Guo, C.; Ferreiro, J. A.; Bergren, A.; Mukundan, V.; Qiu, X.; Castaneda Ocampo, Olga E.; Chen, X.; Chiechi, Ryan C.; McCreery, R.; Pecht, I.; Sheves, M.; Pasula, R. R.; Lim, S.; Nijhuis, Christian A.; Vilan, A.; Cahen, Solid-State Protein Junctions: Cross Laboratory Study Shows Preservation of Mechanism at Varying Electronic Coupling, iScience 23, 101099 (2020) IF: 6.107.
  • Christopher, B.; Sabyasachi Mukhopadhyay; Pecht I.; Sheves, M. Cahen, D.; Lederman, D, Towards Bioelectronics with Immobilized Proteins: a review of what we (do not) know, Reports on Progress in Physics 81, 026601 (2018). IF: 17.26.
  • Sabyasachi Mukhopadhyay.; Gärtner, W.; Cahen, D.; Pecht I.; Sheves, M, Electron Transport via a Soluble Photochromic Photoreceptor, Physical Chemistry Chemical Physics 18, 25671-25675 (2016). IF: 3.676.
  • Siram R.; Das, J.; Sabyasachi Mukhopadhyay.; Brenner, T. M.; Kedem, M.; Kulbak, M.; Bendikov, T.; Cahen, D.; Hodes G.; Rybtchinski B, Interface Modification by Simple Organic Salts Improves Performance of Planar Perovskite Solar Cells Advanced Materials Interfaces 3 (23), 1600506 (2016), IF: 6.389.
  • Levine, I.; Nayak, P.; Wang, J.; Sakai, N.; Reenen, S.; Brenner, T.; Sabyasachi Mukhopadhyay.; Snaith, H.; Hodes, G.; Cahen, D, Interface-Dependent Ion Migration/Accumulation Controls Hysteresis in MAPbI3 Solar Cells, The Journal of Physical Chemistry C, 120 (30), 16399–16411 (2016). IF: 4.177.
  • Hörantner, M.; Nayak, P; Sabyasachi Mukhopadhyay,.; Wojciechowski, K.; Beck, C; McMeekin, D.; Kamino, V.; Eperon, G.; Snaith, H, Shunt-Blocking Layers for Semitransparent Perovskite Solar Cells Advanced Materials Interfaces 3 (10), 1500837 (2016) IF: 6.389.
  • Sabyasachi Mukhopadhyay.; Dutta, S.; Pecht, I.; Sheves, M.; Cahen, D. Conjugated Cofactor Enables Efficient Temperature-Independent Electronic Transport Across ~ 6 nm Long Halorhodopsin, Journal of American Chemical Society 137 (45), 11226-11229 (2015). IF: 16.38.
  • Toledano, T.; Sazan, H.; Sabyasachi Mukhopadhyay.; Alon, H.; Lerman, K.; Bendikov, T.; Major, D. T.; Sukenik, C. N.; Vilan, A.; Cahen, D, Odd and Even Effect in Molecular Electronic Transport via an Aromatic Ring, Langmuir 30 (45), 13596-13605 (2014). IF: 4.331.
  • Sabyasachi Mukhopadhyay.; Cohen, S. R.; Marchak, D.; Friedman, N.; Pecht, I.; Sheves, M.; Cahen, D, Nanoscale Electron Transport and Photodynamics Enhancement in Lipid-Depleted Bacteriorhodopsin Monomers, ACS Nano 8 (8), 7714-7722 (2014). IF: 18.03.
  • Edri, E.; Kirmayer, S.; Sabyasachi Mukhopadhyay.; Gartsman, K.; Hodes, G.; Cahen, D, Elucidating the charge carrier separation and working mechanism of CH3NH3PbI3− xClx perovskite solar cells, Nature Communications 5 (2014). IF: 17.69.
  • Edri, E.; Kirmayer, S.; Henning, A.; Sabyasachi Mukhopadhyay.; Gartsman, K.; Rosenwaks, Y.; Hodes, G.; Cahen, D, Why lead methylammonium tri-iodide perovskite-based solar cells require a mesoporous electron transporting scaffold (but not necessarily a hole conductor). Nano Letters 14 (2), 1000-1004 (2014). IF: 12.26.
  • Sabyasachi Mukhopadhyay.; Das, A. J.; Narayan, K, High Resolution Photocurrent Imaging of Bulk Heterojunction Solar Cells, The Journal of Physical Chemistry Letters 4, 161-169 (2013). IF: 6.88.
  • Sabyasachi Mukhopadhyay.; Narayan, K, Rationalization of donor-acceptor ratio in bulk heterojunction solar cells using lateral photocurrent studies. Applied Physics Letters 100 (16), 163302 (2012). IF: 3.971.
  • Sabyasachi Mukhopadhyay.; Voggu, R.; Rao, C.; Vidhyadhiraja, N.; Narayan, K, Lateral Photocurrent Scanning of Donor and Acceptor Polymers on Graphene Coated Substrates. Japanese Journal of Applied Physics 50 (6R), 061602 (2011). IF: 1.491.
  • Sabyasachi Mukhopadhyay.; Ramachandra, S.; Narayan, K. Direct observation of charge generating regions and transport pathways in bulk heterojunction solar cells with asymmetric electrodes using near field photocurrent microscopy. The Journal of Physical Chemistry C 115 (34), 17184-17189 (2011). IF: 4.177.
  • Das, A. J.; Sabyasachi Mukhopadhyay.; Narayan, K. Characteristic noise features in light transmission across membrane protein undergoing photocycle, The Journal of Chemical Physics 134 (7), 075101 (2011). IF: 4.304.
  • Gupta, D.; Sabyasachi Mukhopadhyay.; Narayan, K, Fill factor in organic solar cells, Solar Energy Materials and Solar Cells 94 (8), 1309-1313 (2010). IF: 7.267.
  • Arun, N.; Sabyasachi Mukhopadhyay.; Narayan, K, Monitoring intermediate states of bacteriorhodopsin monolayers using near-field optical microscopy, Applied Optics 49 (7), 1131-1138 (2010). IF: 1.905.

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