材料科学
钙钛矿(结构)
兴奋剂
金属
离子
化学工程
纳米技术
光电子学
无机化学
工程物理
冶金
有机化学
工程类
化学
作者
Qiaofei Xu,Ke Meng,Zhou Liu,Xiao Wang,Youdi Hu,Zhi Qiao,Shunde Li,Lei Cheng,Gang Chen
标识
DOI:10.1002/admi.201901259
摘要
2D perovskites hold a great prospective to create highly efficient and stable solar cell devices. In order to explore their full potential, every component of 2D perovskite solar cells (PSCs) has to be carefully designed and engineered. Herein, the metal ion doping strategy is taken to optimize both the hole transport layers (HTLs) and the light absorbing layers of the BA(2)MA(3)Pb(4)I(13) (BA = butylamine; MA = methylammonium) based 2D PSC devices. The hole extraction and transport abilities are significantly enhanced by Cu ion doping in the nickel oxide layers, while the optoelectronic properties of the BA(2)MA(3)Pb(4)I(13) layers are effectively improved with Cs ion doping. The synergistic incorporations of Cu and Cs ions have boosted the device power conversion efficiency to 13.92%, the highest for 2D PSCs based on inorganic HTLs. In addition, the inorganic nature of the Cu doped nickel oxide film and the high quality of the Cs doped 2D perovskite film also endow the PSC device with extraordinary humidity and thermal stabilities.
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