News & Highlights

06/08/22 Shout out to Dr Nilabja Maity and Kanad Majumder. We are excited to share our recent findings on “Parallel triplet formation pathways in a singlet fission material” published in nature communications. Click here to read more about it.

25/08/22 Congratulations to Dr Nilabja Maity for successfully defending his Doctoral Thesis titled “Supramolecular Self-assembly of Diketopyrrolopyrrole with Emergent Photophysics and Unprecedented Photoconductivity”.

10/08/22 Congratulations to Dr Ankit Kumar for successfully defending his Doctoral Thesis titled “Studies on Nanostructured Transition Metal Oxides and Related Composites as Supercapacitor Electrodes “.

We are excited to share our recent findings on the application of photostable Diketopyrrolopyrrole dye and its derivatives for Non-Aqueous Redox Flow Batteries. Click here to read more about it.

Satish Patil
Professor and Chair
Solid State and Structural Chemistry Unit
Indian Institute of Science, Bangalore (India)
E-mail :

Tel. 080-22932651, Fax: +91 80 23601310

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Research Areas:

Research activities of our group are focused on exploring the manifold of molecular electronics ranging from organic photovoltaics, light-emitting diodes and field-effect transistors. Our interdisciplinary approach includes synthesizing multifunctional conjugated polymers and oligomers with novel properties and studying their characteristics working at the interface of chemistry, physics and materials engineering. We take advantage of molecular structures to fine tune the desired properties through molecular design and robust synthetic strategies.

The research group at present is actively engaged in developing π-conjugated polymers and oligomers for- 

  • Organic/Perovskite Solar Cells
  • Singlet Fission
  • Electrochemical Energy Storage Devices
  • Organic Light-emitting Diodes
  • Thermally Activated Delayed Fluorescence (TADF)
  • Field-Effect Transistors
Representative Publications:
  1.  Maity, N., Kim, W., Panjwani, N.A. et al. Parallel triplet formation pathways in a singlet fission material. Nat Commun 13, 5244 (2022).
  2.  Mohapatra, A. A.; Tiwari, V.; Patil, S. Energy Transfer in Ternary Blend Organic Solar Cells: Recent Insights and Future Directions. Energy Environ. Sci. 2021, 14 (1), 302–319. DOI: 10.1039/d0ee03170d.
  3.  Krishnapriya, K. C.; Roy, P.; Puttaraju, B.; Salzner, U.; Musser, A. J.; Jain, M.; Dasgupta, J.; Patil, S. Spin Density Encodes Intramolecular Singlet Exciton Fission in Pentacene Dimers. Nat. Commun. 2019 101 2019, 10 (1), 1–8. DOI: 10.1038/s41467-018-07736-3.
  4. Krishnapriya, K. C.; Musser, A. J.; Patil, S. Molecular Design Strategies for Efficient Intramolecular Singlet Exciton Fission. ACS Energy Lett. 2018, 4 (1), 192–202. DOI: 10.1021/acsenergylett.8b01833.
  5. Zang, Y.; Ray, S.; Fung, E. D.; Borges, A.; Garner, M. H.; Steigerwald, M. L.; Solomon, G. C.; Patil, S.; Venkataraman, L. Resonant Transport in Single Diketopyrrolopyrrole Junctions. J. Am. Chem. Soc. 2018, 140 (41), 13167–13170. DOI: 10.1021/jacs.8b06964.
  6. Mukhopadhyay, T.; Musser, A. J.; Puttaraju, B.; Dhar, J.; Friend, R. H.; Patil, S. Is the Chemical Strategy for Imbuing “Polyene” Character in Diketopyrrolopyrrole-Based Chromophores Sufficient for Singlet Fission? J. Phys. Chem. Lett. 2017, 8 (5), 984–991. DOI: 10.1021/acs.jpclett.6b02919.
  7. Roy, P.; Jha, A.; Yasarapudi, V. B.; Ram, T.; Puttaraju, B.; Patil, S.; Dasgupta, J. Ultrafast Bridge Planarization in Donor-π-Acceptor Copolymers Drives Intramolecular Charge Transfer. Nat. Commun. 2017 81 2017, 8 (1), 1–10. DOI: 10.1038/s41467-017-01928-z.
  8. Senanayak, S. P.; Ashar, A. Z.; Kanimozhi, C.; Patil, S.; Narayan, K. S. Room-Temperature Bandlike Transport and Hall Effect in a High-Mobility Ambipolar Polymer, Phys. Rev. B 2015, 91 (11), 115302 (1-16). DOI: 10.1103/physrevb.91.115302.
  9. Kanimozhi, C.; Yaacobi-Gross, N.; Chou, K. W.; Amassian, A.; Anthopoulos, T. D.; Patil, S., Diketopyrrolopyrrole-Diketopyrrolopyrrole-Based Conjugated Copolymer for High- Mobility Organic Field-Effect Transistors. J. Am. Chem. Soc. 2012, 134, 16532-16535. DOI: 10.1021/ja308211n.
  10. Naik, M. A.; Venkatramaiah, N.; Kanimozhi, C.; Patil, S., Influence of Side-Chain on Structural Order and Photophysical Properties in Thiophene Based Diketopyrrolopyrroles: A Systematic  Study. J. Phys. Chem. C 2012, 116, 26128-26137. DOI: 10.1021/jp306365q.
  11. Mohapatra, A. A.; Rational design of Donor-Acceptor based Semiconducting Copolymers with High Dielectric Constant, J. Phys. Chem. C 2021, 125, 68866896. DOI: 10.1021/acs.jpcc.1c00340