Improvement of Characteristics of Organic Photovoltaic Devices Composed of Conducting Polymer-Fullerene Systems by Introduction of ZnO Layer
Improvement of Characteristics of Organic Photovoltaic Devices Composed of Conducting Polymer-Fullerene Systems by Introduction of ZnO Layer
复制标题
通过引入ZnO层改善由导电聚合物-富勒烯体系组成的有机光伏器件的特性
DOI：
10.1143/jjap.42.l1475
复制
发表时间：
2003
影响因子：
1.5
通讯作者：
K. Yoshino
中科院分区：
文献类型：
--
作者：
Tokiyoshi Umeda;T. Shirakawa;A. Fujii;K. Yoshino
研究了由导电聚合物-富勒烯体系和氧化锌（ZnO）薄膜的异质结组成的光伏电池。在该结构中，有效地使用入射光子，因为有助于光电流的激子产生和解离主要发生在导电聚合物层中的光入射侧。在氧化铟锡（ITO）/ ZnO /富勒烯/导电聚合物/ Au结构的叠层光伏电池中，在500 nm、0.6 mW/cm ~ 2光照下，实现了5.2%的单色光能量转换效率，在峰值波长处的外量子效率达到74%，这可以通过互穿的富勒烯/导电聚合物界面以及电子产生区域和电极之间的短距离来解释，从而增强了电子向电极的收集。
Photovoltaic cells, which consist of a heterojunction of conducting polymer-fullerene systems and a zinc oxide (ZnO) thin film, have been studied. In this structure, an incident photon is used effectively because exciton generation and dissociation, which contribute to photocurrent, mainly occur on the light incident side in a conducting polymer layer. In the layered photovoltaic cells with the structure of indium-tin-oxide (ITO) / ZnO / fullerene / conducting polymer / Au, a monochromatic energy conversion efficiency of 5.2% under 0.6 mW/cm2 illumination at 500 nm and an external quantum efficiency reaching 74% at the peak wavelength have been realized, which can be explained by the interpenetrated fullerene / conducting polymer interface and the short distance between the electron-generation region and electrode enhancing electron collection to the electrode.