Photophysics
Photophysics is fundamental to understanding light-matter interactions that drive the performance of optoelectronic and energy-harvesting devices. Our research focuses on the photophysical properties of chalcogenide materials and perovskites, investigating charge carrier dynamics, excitonic processes, and energy transfer mechanisms. By studying recombination pathways, defect states, and ultrafast carrier relaxation, we aim to optimize materials for applications in solar cells, light-emitting diodes (LEDs), and photodetectors. To gain deeper insights into these processes, we employ advanced spectroscopic techniques, including transient absorption spectroscopy, terahertz spectroscopy, time-resolved photoluminescence (TRPL), temperature-dependent photoluminescence (TDPL), and electro-optical measurements. These techniques allow us to probe excitonic and charge transport behaviour, facilitating the design of materials with improved charge separation, extended carrier lifetimes, and enhanced optical properties.
A recent study from our group, published in The Journal of Physical Chemistry C, ACS,1 explored the electronic structure, band alignment, and charge carrier kinetics of copper sulfide (CuS) nanostructures. By integrating advanced spectroscopy with strategic materials design, our research advances the development of next-generation energy-efficient photonic technologies for sustainable energy and high-performance electronics.
References
(1) K, S. C.; Jagadish, K.; Bhatt, H.; Jadhav, Y.; Rondiya, S. R. Unveiling Electronic Structure, Band Alignment, and Charge Carrier Kinetics of Copper Sulfide. J. Phys. Chem. C 2024, 128 (47), 20205–20214. https://doi.org/10.1021/acs.jpcc.4c03886.
