报告题目：Ligand-Engineered Perovskites for Achieving High-Performance and Stable Solar Cells
报 告 人：张鸿博士（香港大学）
报告简介：Due to their outstanding optoelectronic properties, metal halide perovskites have been intensively studied in recent years. A certificated power conversion efficiency of 23.3% has recently been achieved in perovskite solar cells (PVSCs), which enables them as a very promising candidate to be used for next-generation photovoltaics. However, most of the state-of-the-art PVCSs reported so far require tedious layer-dependent high-temperature sintering or annealing processes. This will not only increase the fabrication complexity, cost, and energy consumption, but also hinder the use of flexible substrates for roll-to-roll printing. Moreover, thermal annealing for extended periods is known to cause perovskite decomposition, which degrades device performance and stability. It is still challenging to fabricate low-temperature processed PVSCs, owing to a trade-off between processing temperature and device efficiency. In this talk, I will introduce our recent progress in ligand-engineered perovskites for room-temperature solution processed high-performance and stable PVSCs.