The groups’ focus is Molecular Engineering of Functional Materials for Photovolatic and Light emitting applications. Recently, organohalide lead perovskites have revolutionized the scenario of emerging photovoltaic (PV) technologies, with certified efficiency of 24,2% based on a perovskite solar cell. The group is aiming to enhance power conversion efficiency of perovskite solar cells beyond 25%, and stability using functionalized electron and hole transporting materials. Our group has pioneered a new concept of using 2D/3D interface to enhance stability under light soaking and heat for more than 12,000 h. Our results demonstrated an impressive improvement in device stability due to the favorable self-organization and interface energetics of the 2D/3D interface. This novel strategy opens a new field of possibilities, moving from uniform to gradually organized 3D/2D PSCs.