CORE FACULTY

Education
• Ph.D. Electrical Engineering, 2011, Princeton University, Princeton, NJ, USA.
• B. Tech (Electrical Engineering), 2005, Indian Institute of Technology Kanpur, Kanpur, India.

Experience
• High-efficiency perovskite thin-film solar cells
• Integration of semiconducting oxides to silicon, forming oxide/silicon heterojunction devices
• Functional oxide devices for applications such as photovoltaics, sensing, and memory
• Integration of solar cell on novel substrates such as steel

Research Interests
• High-efficiency perovskite thin-film solar cells
• Integration of semiconducting oxides to silicon, forming oxide/silicon heterojunction devices
• Functional oxide devices for applications such as photovoltaics, sensing, and memory
• Integration of solar cell on novel substrates such as steel

Research Area
Thin-film solar cells, IR photodetectors, thin-film transistors, atomic layer deposition, pulse laser deposition, large-area printable electronics, and advanced optoelectronic characterization

Recent Publications

• Vishwakarma, A., Gharpure, C. S., Sugathan, A., Pandey, A., & Avasthi, S. (2024). Advancements in Uncooled Bolometer Technology: Shortwave Infrared Detection via CuFeSe2 Nanocrystal Colloidal Thin Films. physica status solidi (RRL)–Rapid Research Letters, 18(5), 2300440.
  https://doi.org/10.1002/pssr.202300440

• Pawar, V., Sharma, B., & Avasthi, S. (2024). Mixed‐Dimensional 2D–3D Perovskite Solar Cells: Origin, Development, and Applications.Smart Materials for Science and Engineering, 221-267.
  https://onlinelibrary.wiley.com/doi/10.1002/adfm.201806482

• Raj, A. A., Bhardwaj, S., Narasimhan, K. L., & Avasthi, S. (2024). Photoelectromagnetic Effect in Hybrid Lead Iodide Perovskite. ACS Applied Electronic Materials, 6(8), 5705-5711.
  https://doi.org/10.1016/j.tsf.2024.140542

• Basavaraju, U., Singh, S., Avasthi, S., Vinod, P., & Ramamurthy, P. C. (2024). Optimization of laser patterning process for eco-friendly tin-halide perovskite solar module–with a nanosecond green laser. Thin Solid Films, 140542.
  https://doi.org/10.1016/j.tsf.2024.140542.

• Mehta, M., Pattipati, Y., Singh, A. R., Ventrapragada, R. S. S., Vanjari, S. C., Kant, R., … S & Avasthi, S. (2024). Low Interface Resistance in Epitaxial β-Ga2O3 Vertical Power Diodes on Silicon (100) Using TiN Buffer. ACS Applied Electronic Materials, 6(3), 2084-2092.
  https://pubs.acs.org/doi/10.1021/acsaelm.4c00258

Key Publications (*from outside CeNSE)

• Singh, P., Mukherjee, R., & Avasthi, S. (2020). Acetamidinium-Substituted Methylammonium Lead Iodide Perovskite Solar Cells with Higher Open-Circuit Voltage and Improved Intrinsic Stability. ACS applied materials & interfaces, 12(12), 13982-13987.
  https://doi.org/10.1021/acsami.0c00663

• Avasthi, S., Lee, S., Loo, Y. L., & Sturm, J. C. (2011). Role of majority and minority carrier barriers silicon/organic hybrid heterojunction solar cells. Advanced materials, 23(48), 5762-5766. *
  https://doi.org/10.1002/adma.201102712

• Singh, V., Sinha, J., Shivashankar, S. A., & Avasthi, S. (2023). CVD-deposited Cu 2 O thin films with a record Hall hole mobility of 263 cm 2 V− 1 s− 1 and field-effect mobility of 0.99 cm 2 V− 1 s− 1. Journal of Materials Chemistry C, 11(22), 7356-7366.
  https://doi.org/10.1039/D3TC00789H