有机太阳能电池
纳米线
材料科学
薄板电阻
电极
柔性电子器件
能量转换效率
基质(水族馆)
纳米技术
光伏
光电子学
光伏系统
电气工程
工程类
化学
复合材料
图层(电子)
聚合物
物理化学
地质学
海洋学
作者
Yanna Sun,Meijia Chang,Lingxian Meng,Xiangjian Wan,Huanhuan Gao,Yamin Zhang,Kai Zhao,Zhenhe Sun,Chenxi Li,Shuiren Liu,Huike Wang,Jiajie Liang,Yongsheng Chen
标识
DOI:10.1038/s41928-019-0315-1
摘要
A key feature of organic electronic devices is their mechanical flexibility. However, the performance of flexible organic optoelectronic devices still lags behind the performance of devices on rigid substrates. This is due, in particular, to the lack of flexible transparent electrodes that simultaneously offer low resistance, high transparency and a smooth surface. Here, we report flexible transparent electrodes created using water-processed silver nanowires and a polyelectrolyte. Due to ionic electrostatic charge repulsion, the nanowires form grid-like structures in a single step, leading to smooth, flexible electrodes that have a sheet resistance of around 10 Ω □−1 and a transmittance of around 92% (excluding the substrate). To illustrate the potential of the approach in organic electronics, we use the flexible electrodes to create organic photovoltaic devices. The devices are tested with different types of donors and acceptors, and exhibit performance comparable to devices based on commercial rigid electrodes. Furthermore, flexible single-junction and tandem devices achieve power conversion efficiencies of 13.1% and 16.5%, respectively. Flexible transparent electrodes made from silver nanowires that form grid-like structures due to ionic electrostatic charge repulsion can be used to create flexible single-junction and tandem organic photovoltaic devices with power conversion efficiencies of 13.1% and 16.5%, respectively.
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