Photoconductive Cathode Interlayer for Highly Efficient Inverted Polymer Solar Cells

详细信息    查看全文

• 作者：Li Nian ; Wenqiang Zhang ; Na Zhu ; Linlin Liu ; Zengqi Xie ; Hongbin Wu ; Frank W眉rthner ; Yuguang Ma
• 刊名：Journal of the American Chemical Society
• 出版年：2015
• 出版时间：June 10, 2015
• 年：2015
• 卷：137
• 期：22
• 页码：6995-6998
• 全文大小：286K
• ISSN：1520-5126

文摘

A highly photoconductive cathode interlayer was achieved by doping a 1 wt % light absorber, such as perylene bisimide, into a ZnO thin film, which absorbs a very small amount of light but shows highly increased conductivity of 4.50 脳 10^鈥? S/m under sunlight. Photovoltaic devices based on this kind of photoactive cathode interlayer exhibit significantly improved device performance, which is rather insensitive to the thickness of the cathode interlayer over a broad range. Moreover, a power conversion efficiency as high as 10.5% was obtained by incorporation of our photoconductive cathode interlayer with the PTB7-Th:PC₇₁BM active layer, which is one of the best results for single-junction polymer solar cells.