钙钛矿太阳能电池研究进展特刊序言

Metal halide perovskites,as a novel class of semiconduc-tor optoelectronic materials,combine the excellent optoelec-tronic properties of inorganic semiconductors with the advan-tages of low-cost,printable fabrication typical of organic semi-conductors,making them a cutting-edge research focus in the field of semiconductor optoelectronic devices.In recent years,significant progress has been made in perovskite solar cell research:the efficiency of single-junction cells has reached 27％,module efficiency at the square-meter scale has exceeded 18％,laboratory-tested stability has achieved 10 000 h,extrapolated stability has reached several tens of thousands of hours,and GW-scale production lines have been preliminarily established.Perovskite-based tandem cells are flourishing,with perovskite/crystalline silicon tandem effi-ciency approaching 35％.Wafer-sized perovskite/silicon tandems have already surpassed the efficiency of single-junc-tion silicon cells,while important advancements have also been made in perovskite/perovskite,perovskite/organic,and perovskite/copper indium gallium selenide(CIGS)tandem cells.From these progresses,we fully believe perovskite solar cells is very promising photovoltaic technology.