【摘 要】
：
Metal halide perovskite solar cells(PSCs)have drawn enormous attention due to their great potential to share the market of silicon solar cells[1-3].During the past few years,significant progress has been made in fabrication method,chemical composition,def
【机 构】
：
Beijing National Laboratory for Molecular Sciences,Key Laboratory of Molecular Nanostructure and Nan
论文部分内容阅读
Metal halide perovskite solar cells(PSCs)have drawn enormous attention due to their great potential to share the market of silicon solar cells[1-3].During the past few years,significant progress has been made in fabrication method,chemical composition,defect passivation,and strain regulation of perovskite materials,making PSCs one of the most promising solution-processed photovoltaic technologies with high efficiency and low cost[4-6].However,there still remains a large gap between the power conversion effi-ciency(PCE)of state-of-the-art PSCs and Shockley-Queisser(S-Q)limit due to excessive carrier recombination[7,8].The carrier recombination at the interfaces between perovskite layer and charge-transport layers(Fig.la)induces large open-circuit voltage(Vqc)deficits and low fill factor(FF),limiting the PCE of PSCs[9,10].Improving carrier management is an effective way to make the PCE of PSCs approaching S-Q limit(Fig.1b).
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