Strong, conductive carbon nanotube fibers as efficient hole collectors

作者:Jia Yi; Li Xiao; Li Peixu; Wang Kunlin; Cao Anyuan; Wei Jinquan; Zhu Hongwei*; Wu Dehai*
来源:Nanoscale Research Letters, 2012, 7: 1-8.
DOI:10.1186/1556-276X-7-137

摘要

We present the photovoltaic properties of heterojunctions made from single-walled carbon nanotube (SWNT) fibers and n-type silicon wafers. The use of the opaque SWNT fiber allows photo-generated holes to transport along the axis direction of the fiber. The heterojunction solar cells show conversion efficiencies of up to 3.1% (actual) and 10.6% (nominal) at AM1.5 condition. In addition, the use of strong, environmentally benign carbon nanotube fibers provides excellent structural stability of the photovoltaic devices.