Abstract: Metal halide perovskites have emerged as promising functional materials for next generation energy conversion technologies due to their excellent optoelectronic properties. Our approaches to improving the performance and long - term stability of perovskite solar cells, with particular emphasis on replacing conventional metal electrodes and employing chemical vapor deposition (CVD) to fabricate high quality perovskite films with enlarged grain sizes. These strategies provide opportunities to reduce degradation pathways and improve the structural and electrical stability of perovskite devices.

Beyond photovoltaic applications, metal halide perovskites also exhibit intriguing piezoelectric properties which could be applied for converting mechanical stimuli into electrical energy, including potential applications in piezoelectric nanogenerators. These emerging properties highlight the versatility of perovskites as a multifunctional materials platform for both solar and mechanical energy conversion.

Speaker Bio: Dr. Van-Dang Tran is a faculty member at the Hanoi University of Science and Technology (HUST), Vietnam. He received his Ph.D. in Materials Engineering from Chungnam National University, Republic of Korea, and subsequently worked as a Postdoctoral Researcher in the Department of Physics at the University of Mons (UMONS), Belgium.

His research focuses on semiconductor and functional materials, with particular interests in thin film technologies, photovoltaic devices, and mechanical energy harvesting. His work involves materials synthesis, characterization, and device fabrication, with an emphasis on understanding and engineering material properties for energy conversion applications.