环境友好型无铅卤化物钙钛矿太阳能电池研究进展

ABX_3(A为甲胺、甲脒等有机离子或铯离子,B为铅或锡等金属离子,X为溴、碘等卤化物离子)卤化物钙钛矿材料具有优异的光电特性,是当前太阳能电池研究的前沿和热点之一。然而,这类太阳能电池普遍面临含毒性元素铅和稳定性差等问题,极大地阻碍了钙钛矿太阳能电池商业化应用进程。因此,发展新型高效无铅钙钛矿太阳能电池势在必行。本文评述了环境友好型无铅卤化物钙钛矿太阳能电池的最新研究动态和进展,探讨了该类太阳能电池的制备、性能及其稳定性等问题,展望了其未来发展趋势。

Research Progress in Environmentally Friendly Lead-Free Halide Perovskite Solar Cells

Recently, the metal halide perovskites with ABX₃ structure (A=MA⁺, FA⁺ or Cs⁺; B=Pb²⁺, Sn²⁺; X=Br^- or I^- halide cations) have a series of exciting and excellent optoelectronic performances, which is recognized as one of the research frontiers and hot spots in the field of solar cells. However, the problems in terms of the toxic lead component and the instability under ambient conditions greatly hamper the progress for large-scale commercialization of perovskite solar cells. Thereby, it is urgent to develop novel and efficient solar cells based on lead-free metal halide perovskites. In the present work, the state-of-the-art research activities and recent progresses in the exploration of solar cells based on environmental-friendly lead-free metal halide perovskites have been overviewed. The fabrication, optoelectronic performance as well as the stability of the as-constructed solar cells based on lead-free metal halide perovskites have been discussed. The prospects in this area have been proposed.