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Sajjad Ahmad holds a Ph.D. in Physical Chemistry, awarded in September 2020 from the Dalian Institute of Chemical Physics, University of Chinese Academy of Sciences. His doctoral research focused on enhancing the intrinsic and extrinsic stability of 3D perovskite solar cells and the development of a novel class of Dion-Jacobson 2D perovskites. His academic excel-lence was recognized with the International Excellence Student Award from the University of Chinese Academy of Sciences.
From 2021 to 2025, Sajjad served as a Postdoctoral Fellow at the University of Hong Kong, where he advanced the operational stability and performance of MA-free, pure-phase 2D per-ovskites.
In April 2025, he joined Professor David's research group at the University of Sheffield as a Research Associate. His current focus is on developing scalable, non-spin-coated fabrication methods for 2D/3D perovskite solar cells, modules, and tandem devices.
Sajjad’s research interests extend to exploring diverse applications of perovskite materials, in-cluding X-ray detectors, light-emitting diodes, space applications, and other advanced technolo-gies. Leveraging the unique properties of perovskites, such as high efficiency, tunability, and low cost-he aims to contribute to innovative developments that could revolutionize multiple in-dustries.
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