Research Interest

Focus- Renewable Energy & Clean Environment

  1. Solid State Inorganic Chemistry of Metal Chalcogenides/Halides
  2. Thermoelectric Materials- Waste Heat to Electrical Energy.
  3. 2D  layered Materials including nanosheets/nanostructures
  4. Topological Insulators and Dirac Semimetal
  5. Synchrotron X-ray Based Techniques- Diffraction and Pair distribution function (PDF)
  6. Water Purification
  7. Perovskite halides

Recent Discoveries

1. Glassy thermal conductivity in Cs3Bi2I6Cl3 single crystal. Nat. Commun., 2022, 13, 5053 2. Modular Nanostructures Facilitate Low Thermal Conductivity and Ultra-High Thermoelectric Performance in n-type SnSe, Adv. Mater., 2022, doi.org/10.1002/adma.202203725
3. Emphanisis in Cubic (SnSe)0.5(AgSbSe2)0.5 : Dynamic Off-Centering of Anion Leads to Low Thermal Conductivity and High Thermoelectric Performance. J. Am. Chem. Soc., 2021, 143, 16839–16848 4. Enhanced atomic ordering leads to high thermoelectric performance in AgSbTe2Science, 2021, 371, 722-727
5. Evidence of Highly Anharmonic Soft Lattice Vibrations in Zintl Rattler. Angew. Chem. Int. Ed., 2021, 60, 4259-4265 6. Intrinsically Ultralow Thermal Conductivity in Ruddlesden-Popper 2D Perovskite Cs2PbI2Cl2: Localized Anharmonic Vibrations and Dynamic Octahedral Distortions. J. Am. Chem. Soc., 2020, 142, 15595.
7. Ferroelectric Instability Induced Ultralow Thermal Conductivity and High Thermoelectric Performance in Rhombohedral p-Type GeSe Crystal, J. Am. Chem. Soc., 2020, 142, 12237. 8. Realization of High Thermoelectric Figure of Merit in Solution Synthesized 2D SnSe Nanoplates via Ge Alloying, J. Am. Chem. Soc., 2019, 141, 6141.

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