Metal halide perovskite solar cells(PSCs)are one of the most promising photovoltaic devices.Over time,many strategies have been adopted to improve PSC efficiency,and the certified efficiency has reached 26.1%.However,...Metal halide perovskite solar cells(PSCs)are one of the most promising photovoltaic devices.Over time,many strategies have been adopted to improve PSC efficiency,and the certified efficiency has reached 26.1%.However,only a few research groups have fabricated PSCs with an efficiency of>25%,indicating that achieving this efficiency remains uncommon.To develop the PSC industry,outstanding talent must be reserved with the latest technologies.Herein,we summarize the recent developments in high-efficiency PSCs(>25%)and highlight their effective strategies in crystal regulation,interface passivation,and component layer structural design.Finally,we propose perspectives based on current research to further enhance the efficiency and promote the commercialization process of PSCs.展开更多
无机锡(Sn)–铅(Pb)基混合卤素钙钛矿由于其宽的响应波长范围和高的热稳定性,比有机–无机复合铅基卤素钙钛矿更具有吸引力.为了进一步提高Sn–Pb基混合卤素钙钛矿器件的性能,有必要进一步操纵载流子分离和复合.本文提出了一种基于梯度...无机锡(Sn)–铅(Pb)基混合卤素钙钛矿由于其宽的响应波长范围和高的热稳定性,比有机–无机复合铅基卤素钙钛矿更具有吸引力.为了进一步提高Sn–Pb基混合卤素钙钛矿器件的性能,有必要进一步操纵载流子分离和复合.本文提出了一种基于梯度无机CsPb_(0.7)Sn_(0.3)I3的自驱动光电探测器.通过调节退火温度优化CsPb_(0.7)Sn_(0.3)I3基钙钛矿膜中Sn和Pb梯度分布的程度,最终,最优的梯度钙钛矿器件表现出高的响应度(0.18 A W^(−1)),大的比探测率(2.5×10^(12)Jones),和快的响应速率(58.9/42μs),与之前报道的大多数Sn–Pb混合或纯Sn钙钛矿光电探测器性能相当.器件性能的提高主要归因于梯度分布诱导的能带弯曲促进了光生载流子的分离和传输.展开更多
基金support from the National Natural Science Foundation of China(Grant Nos.52025028,52332008,52372214,and U22A20137)the Priority Academic Program Development(PAPD)of Jiangsu Higher Education Institutions.
文摘Metal halide perovskite solar cells(PSCs)are one of the most promising photovoltaic devices.Over time,many strategies have been adopted to improve PSC efficiency,and the certified efficiency has reached 26.1%.However,only a few research groups have fabricated PSCs with an efficiency of>25%,indicating that achieving this efficiency remains uncommon.To develop the PSC industry,outstanding talent must be reserved with the latest technologies.Herein,we summarize the recent developments in high-efficiency PSCs(>25%)and highlight their effective strategies in crystal regulation,interface passivation,and component layer structural design.Finally,we propose perspectives based on current research to further enhance the efficiency and promote the commercialization process of PSCs.
基金financially supported by the National Natural Science Foundation of China(52025028,52002258,52202273,and U22A20137)the Priority Academic Program Development(PAPD)of Jiangsu Higher Education Institutions.
文摘无机锡(Sn)–铅(Pb)基混合卤素钙钛矿由于其宽的响应波长范围和高的热稳定性,比有机–无机复合铅基卤素钙钛矿更具有吸引力.为了进一步提高Sn–Pb基混合卤素钙钛矿器件的性能,有必要进一步操纵载流子分离和复合.本文提出了一种基于梯度无机CsPb_(0.7)Sn_(0.3)I3的自驱动光电探测器.通过调节退火温度优化CsPb_(0.7)Sn_(0.3)I3基钙钛矿膜中Sn和Pb梯度分布的程度,最终,最优的梯度钙钛矿器件表现出高的响应度(0.18 A W^(−1)),大的比探测率(2.5×10^(12)Jones),和快的响应速率(58.9/42μs),与之前报道的大多数Sn–Pb混合或纯Sn钙钛矿光电探测器性能相当.器件性能的提高主要归因于梯度分布诱导的能带弯曲促进了光生载流子的分离和传输.
