Arup Kumar Rath

Arup Kumar Rath

Physical and Materials Chemistry Division

About Me

We are trying to employ the recent advances of nanoscience and nanotechnology in order to develop smarter optoelectronic devices with the aspiration of pushing the limits of existing technologies. Our main scope of work is to synthesize new functional materials with tailored optical and electronic properties for optoelectronics and renewable energy applications. We are focusing on the development of next generation solar cells employing quantum dots, nano structures and organic molecules as active material for solar energy harnessing.

Professional Experience

1.       October 2013: Joined as Senior Scientist at National Chemical Laboratory,      Pune, India.

2.        2010-2013: Post doctoral researcher at Institute of Photonic Sciences,          Spain.

3.        2006-2010: Ph-D Student at Indian Association for the Cultivation of              Science, India.

Selected Publications

  • Anjali Sharma, Dipak Dattatray Shinde, Chandan Mahajan, Neha V Dambhare, Arindam Biswas, Anurag Mitra, Vrushali S Girade And Arup K Rath, Synergistic Improvement of Narrow Bandgap PbS Quantum Dot Solar Cells through Surface Ligand Engineering, Near-Infrared Spectral Matching, and Enhanced Electrode Transparency, ACS Applied Materials & Interfaces., 17, 6614 - 6625 (2025), DOI:https://doi.org/10.1021/acsami.4c22334.
  • Neha V Dambhare, Arindam Biswas, Anjali Sharma, Dipak Dattatray Shinde, Anurag Mitra, Vrushali S Girade And Arup Kumar Rath, Fermi-Level Equilibrium-Driven Trap Filling in Multibandgap PbS Quantum Dot Solids Enabling Record Voltage Generation and Improved Carrier Transport in High Performance Solar Cells, ACS Energy Letters., 10, 6336 - 6346 (2025), DOI:https://doi.org/10.1021/acsenergylett.5c03000.
  • Dipak Dattatray Shinde, Anjali Sharma, Neha V Dambhare, Chandan Mahajan, Arindam Biswas, Anurag Mitra And Arup K Rath, Synthesis and Processing Strategy for High-Bandgap PbS Quantum Dots: A Promising Candidate for Harvesting High-Energy Photons in Solar Cells, ACS Applied Materials & Interfaces., 16, 42522 - 42533 (2024), DOI:https://doi.org/10.1021/acsami.4c09364.
  • Arindam Biswas, Anurag Mitra, Ashish Sharma, Dipak Dattatray Shinde, Neha V Dambhare, Anjali Sharma, Chandan Mahajan And Arup K Rath, Solution-Phase Ligand Engineering for All-Quantum-Dot NearInfrared Light-Emitting Diodes, ACS Applied Nano Materials., 7, 9126 - 9135 (2024), DOI:https://doi.org/10.1021/acsanm.4c00634.
  • N V Dambhare, A Sharma, C Mahajan And Arup K Rath*, Thiocyanate and Thiol Functionalized p-Doped Quantum Dot Colloids for the Development of Bulk Homojunction Solar Cells, Energy Technol., 10, 2200455 (2022).
  • C. Mahajan, A. Sharma And Arup K. Rath*, Solution-Phase Hybrid Passivation for Efficient Infrared-Band Gap Quantum Dot Solar Cells, ACS Applied Materials & Interfaces., 12, 49840 - 49848 (2020), DOI:https://doi.org/10.1021/acsami.0c15703.
  • A Sharma, C Mahajan And Arup K. Rath*, Reduction of trap and polydispersity in mutually passivated quantum dot solar cells, ACS Applied Energy Materials., 3, 8903 - 8911 (2020), DOI:https://doi.org/10.1021/acsaem.0c01378.
  • Arup. K. Rath, F. Pelayo Garcia de Arquer, Alexandros Stavrinadis, Tania Lasanta, Maria Bernechea, Silke L. Diedenhofenand And Gerasimos Konstantatos, Remote Trap Passivation in Colloidal Quantum Dot Bulk Nano-Heterojunctions and Its Effect in Solution-Processed Solar Cell, Advanced Materials., , (2014), DOI:10.1002/adma.201400297.
  • A. Stavrinadis, Arup K. Rath, F. P. G. Arquer, S. L. Diedenhofen, C. MagĂ©n, L. Martinez, D. So And G. Konstantatos, Heterovalent cation substitutional doping for quantum dot homojunctions, Nature Communications., , (2013), DOI:10.1038/ncomms3981.
  • Arup K. Rath, Maria Bernechea, Luis Martinez, F. Pelayo Garcia de Arquer And Johann Osmond & Gerasimos Konstantatos, Solution-processed inorganic bulk nano-heterojunctions and their application to solar cells, Nature Photonics., 6, 529 - 534 (2012), DOI:10.1038/nphoton.2012.139.
  • Arup K. Rath, M. Bernechea, L. Martinez And G. Konstantatos , Solution-Processed Heterojunction Solar Cells Based on p-type PbS Quantum Dots and n-type Bi2S3 Nanocrystals, Advanced Materials., 23, 3712 - 3717 (2011), DOI:10.1002/adma.201101399.
  • Arup K. Rath, S. Bhaumik And A. J. Pal, Mn-doped nanocrystals in light-emitting diodes: Energy-transfer to obtain electroluminescence from quantum dots, Applied Physics Letter., 97, 113502 (2010), DOI:10.1063/1.3489099.
  • Arup K. Rath and A. J. Pal, To induce negative differential resistance in organic devices through a ferroelectric polymer, Org. Elec., 10, 1116 - 1119 (2009), DOI:10.1016/j.orgel.2009.05.027.
  • Arup K. Rath and A. J. Pal, Resistive switching in Rose Bengal and other Xanthene molecules is a molecular phenomenon, Org. Elec., 9, 495 - 500 (2008), DOI:10.1016/j.orgel.2008.02.013.

Research Interest

  • Nanoscience & Technology

Contact Details

Dr. Arup Kumar Rath
Senior Principal Scientist 
National Chemical Laboratory 
Dr. Homi Bhabha Road 
Pune 411008, India 
Phone +91 20 2590 3054
Fax +91 20 2590 2615 
E-mail ak.rath@ncl.res.in