佩多:嘘
材料科学
兴奋剂
能量转换效率
钙钛矿(结构)
电导率
化学工程
钾
硬脂酸盐
光电子学
纳米技术
图层(电子)
化学
复合材料
物理化学
工程类
冶金
作者
Ying Li,Yanqing Yao,Yuanlin Yang,Xusheng Zhao,Cheng Wan,Banghui Chen,Lijia Chen,Ping Li,Shuhui Tang
摘要
Poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) suffers from lower conductivity and surface defects, which hinders the extraction and transport of effective charges, thereby reducing the Power conversion efficiency (PCE) and long-term stability of PSCs. Therefore, this study introduces potassium stearate (KSt) doping in PEDOT:PSS to regulate its conductivity and interface charge transfer. As a result, KSt-doped PEDOT:PSS increase the PCE of the device from 16.35% to 18.35%. Moreover, the PCE of PSCs with KSt-doped PEDOT:PSS can maintain 87% of its initial value after being stored in a glove box for over 700 hours. This work provides a simple and effective method for designing high-performance and stable PSCs.
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