Flexible fiber-shaped CuInSe2 solar cells with single-wire-structure: Design, construction and performance

作者：Zhang, Lisha; Song, Linlin; Tian, Qiwei; Kuang, Xingyu; Hu, Junqing; Liu, Jianshe; Yang, Jianmao; Chen, Zhigang^*

来源：Nano Energy, 2012, 1(6): 769-776.

DOI：10.1016/j.nanoen.2012.07.022

• CuInSe2
• Solar cells
• Single wire
• Flexibility

Fiber-shaped solar cells (FSCs) have attracted increasing interest in recent years due to their numerous advantages. Herein we report the first prototype of highly flexible all-solid-state single-wire FSCs by using CuInSe2 (CIS) as the model photoactive semiconductor. CIS layer is electrodeposited on a flexible Mo wire as the substrate. Subsequently, CdS, ZnO and ITO layers are orderly deposited on the Mo/CIS wire, and each upper layer ensures full contact with the underlying layer, resulting in an excellent structural uniformity along circumference of the FSC. This Mo/CIS/CdS/ZnO/ITO single-wire FSC exhibits a power conversion efficiency of 2.31%, which is one of the highest values in all reported FSCs. More importantly, the present all-solidstate single-wire FSC exhibits stable conversion efficiency (2.16-2.32%) during rotation (0 similar to 360 degrees), bending (0 similar to 360 degrees) and long-time aging (stored at 60 degrees C for 600 h). processes, which makes it possible to fabricate very long single-wire FSC with stable efficiency for weaving large-area devices and/or the stereoscopic cell textiles. Our method provides a new and general approach for fabricating flexible single-wire FSC with various kinds of photovoltaic semiconductor materials, and it also would be applicable to develop other flexible electronic circuits.

• 出版日期2012-11
• 单位东华大学