Suppressed Charge Recombination in Inverted Organic Photovoltaics via Enhanced Charge Extraction by Using a Conductive Fullerene Electron Transport Layer

被引:227
作者
Li, Chang-Zhi [1 ]
Chang, Chih-Yu [1 ]
Zang, Yue [1 ]
Ju, Huan-Xin [2 ,3 ]
Chueh, Chu-Chen [1 ]
Liang, Po-Wei [1 ]
Cho, Namchul [1 ]
Ginger, David S. [2 ]
Jen, Alex K. -Y. [1 ,2 ]
机构
[1] Univ Washington, Dept Mat Sci & Engn, Seattle, WA 98195 USA
[2] Univ Washington, Dept Chem, Seattle, WA 98195 USA
[3] Univ Sci & Technol China, Dept Chem, Hefei 230026, Peoples R China
关键词
Inverted organic solar cell; recombination; fullerene; electron transport layer; transient photovoltage; POLYMER SOLAR-CELLS; OPEN-CIRCUIT VOLTAGE; INTERFACIAL LAYER; CATHODE; EFFICIENT; POLYELECTROLYTES; DENSITY;
D O I
10.1002/adma.201402276
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Conductive fullerene electron-transporting layers (ETLs) are developed to facilitate the solution processing of highly efficient inverted OSCs with power conversion efficiency (PCE) reaching 9.6%. Its high conductivity also allows devices to be fabricated independently of the ETL thickness (up to ca. 50 nm). Transient photovoltage (TPV) measurements are used to shed light on how these conductive ETLs help suppress charge recombination in solar cells.
引用
收藏
页码:6262 / 6267
页数:6
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