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
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...
May 1, 2024: Journal of the American Chemical Society