Advancing Optoelectronic Applications with Low-Dimensional Ruddlesden-Popper Metal Halide Perovskites: From Material Design to Photodetector Fabrication
Mohammed Rahil
Ph.D. in Nanoscience and Nanotechnology
IAP Physics Seminar Series will occur on Tuesday 31 December, at 11:15 at the UM6P campus (Ryad 8, 1st floor).
Abstract:
Metal halide perovskites have garnered significant attention in recent years due to their remarkable properties, including high charge carrier mobility, long carrier diffusion lengths, large absorption coefficients, low trap densities, and solution-processable fabrication. These features have positioned perovskites as promising materials for a range of applications, including solar cells, photodetectors, and lasers. Among them, the low-dimensional Ruddlesden-Popper (RP) metal halide perovskites represent an emerging class of materials with immense potential for advanced optoelectronic applications. Defined by the general formula R2An−1MnX3n+1, where R and A are monovalent organic cations of varying sizes, and M and X denote divalent metals and halides respectively, these materials exhibit a unique layered structure with staggered stacking and highly tunable properties. This presentation will provide an in-depth exploration of the synthesis and characterization of novel RP perovskite materials. Specifically, it will focus on the incorporation of diverse organic cations and halides to tailor their structural, optical, and thermal properties. Advanced characterization techniques, such as time-resolved photoluminescence (TRPL) for charge carrier dynamics, thermogravimetric analysis (TGA) for thermal stability, and optical studies for elucidating light-matter interactions, will be discussed. Structural analysis will further highlight the role of crystallinity and morphology in determining the material’s functional performance. Building upon these foundational studies, the fabrication and optimization of photodetectors using solution-processing methods will be presented. The impact of structural modifications and material engineering on device efficiency and stability will be critically examined. This work underscores the transformative potential of RP perovskites in realizing efficient, stable, and scalable photodetectors, thereby advancing the frontier of next-generation optoelectronic technologies
Biography:
Dr. Mohammad Rahil recently completed his Ph.D., titled “Fabrication and Optoelectronic Studies of Low-Dimensional Ruddlesden-Popper (RP) Metal Halide Perovskites” from Jamia Millia Islamia (A Central University), New Delhi and Indian Institute of Technology Jodhpur Rajasthan under the supervision of Prof. S.S Islam and Dr. Shahab Ahmad. His doctoral research emphasized the synthesis of novel layered perovskite materials, detailed investigation of their structural and optoelectronic properties, and their application in the development of photodetectors. With over five years of experience in cleanroom environments, he possesses extensive expertise in advanced material synthesis techniques, optoelectronic device fabrication, and state-of-the-art characterization methodologies. He has presented his findings at several prestigious international conferences and has authored approximately ten research articles in highly reputed peer-reviewed journals, including Scientific Reports, ACS Applied Nano Materials, ACS Applied Electronic Materials, Advanced Materials Interfaces, Materials Advances, and The Journal of Physical Chemistry C. Additionally, several of his research manuscripts are currently under preparation. His scholarly contributions highlight significant advancements in nanotechnology and optoelectronic applications. In addition, he has collaborated with leading researchers, such as Prof. Michael De Volder (University of Cambridge), and has served as a visiting scholar with the Advanced Energy Materials Group at IIT Jodhpur. His research interests focus on the development of novel materials for high-performance devices and fostering the integration of nanotechnology into practical technological solutions.
Localization: Ryad 8, 1st Floor.