Smart Additive and Interface Engineering to Achieve Perovskite Solar Cells with High Efficiency and Stability, and Efficient Capturing of Degraded Pb-Containing By-Products

Minimizing energy loss and improving stability are the key aspects to transcend the current limitations on the performance of perovskite photovoltaics (PVSC). Our recent study combining additive and interface engineering to dramatically improve the efficiency and long-term operational stability of the PVSCs. By introducing a non-volatile additive functioning both as crystallization modulator and defects passivator, high power conversion efficiency and stability can be achieved simultaneously. In addition, innovative methods have also been developed to efficiently trap decomposed Pb-containing by-products for solving the very challenging environmental issue in PVSCs for facilitating their commercialization.<br/> <br/>This talk is divided into two parts: (1) Progress of achieving the highest efficiency (24.8%) in inverted planar junction perovskite solar cells (PVSCs) through smart interface engineering using 0D, 1D, and 2D perovskites; (2) Demonstration of simultaneously achieving high PCE, excellent operational stability, and the ability to capture degraded Pb-containing by-products using efficient and very low cost cation exchange resins and sulphonated graphene aerogels for PVSC encapsulation