期刊
NANO ENERGY
卷 1, 期 6, 页码 769-776出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.nanoen.2012.07.022
关键词
CuInSe2; Solar cells; Single wire; Flexibility
类别
资金
- National Natural Science Foundation of China [21107013, 21171035, 41073060, 50902021, 51272299]
- Innovation Program of Shanghai Municipal Education Commission [13ZZ053]
- Specialized Research Fund for the Doctoral Program of Higher Education [51272299, 20090075120014 50902021]
- Scientific Research Foundation for the Returned Overseas Chinese Scholars
- Science and Technology Commission of Shanghai-based Innovation Action Plan Project [10JC1400100]
- Shanghai Rising-Star Program [11QA1400100]
- Shanghai Chen Guang project [09CG27]
- Shanghai Leading Academic Discipline Project [B603]
- Fundamental Research Funds for the Central Universities
- Program of Introducing Talents of Discipline to Universities [111-2-04]
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. (C) 2012 Elsevier Ltd. All rights reserved.
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