化学
茂金属
光伏系统
钙钛矿(结构)
分子
小分子
能量转换效率
光电子学
化学工程
纳米技术
结晶学
有机化学
聚合
聚合物
电气工程
生物化学
工程类
材料科学
作者
Bo Li,Danpeng Gao,Stephanie A. Sheppard,William D. J. Tremlett,Qi Liu,Zhen Li,Andrew J. P. White,Ryan K. Brown,Xianglang Sun,Jianqiu Gong,Shuai Li,Shoufeng Zhang,Xin Wu,Dan Zhao,Chunlei Zhang,Yan Wang,Xiao Cheng Zeng,Zonglong Zhu,Nicholas J. Long
摘要
Inverted p-i-n perovskite solar cells (PSCs) are easy to process but need improved interface characteristics with reduced energy loss to prevent efficiency drops when increasing the active photovoltaic area. Here, we report a series of poly ferrocenyl molecules that can modulate the perovskite surface enabling the construction of small- and large-area PSCs. We found that the perovskite–ferrocenyl interaction forms a hybrid complex with enhanced surface coordination strength and activated electronic states, leading to lower interfacial nonradiative recombination and charge transport resistance losses. The resulting PSCs achieve an enhanced efficiency of up to 26.08% for small-area devices and 24.51% for large-area devices (1.0208 cm2). Moreover, the large-area PSCs maintain >92% of the initial efficiency after 2000 h of continuous operation at the maximum power point under 1-sun illumination and 65 °C.
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