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arXiv · 1505.01244

Semiconductor quantum dots enhanced graphene/CdTe heterostructure solar cells by photo-induced doping

Xiaoqiang Li·Shengjiao Zhang·Peng Wang·Zhijuan Xu·Huikai Zhong·Zhiqian Wu·Shisheng Lin
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Abstract

We report a type of solar cells based on graphene/CdTe Schottky heterostructure, which can be improved by surface engineering as graphene is one-atomic thin. By coating a layer of ultrathin CdSe quantum dots onto graphene/CdTe heterostructure, the power conversion efficiency is increased from 2.08% to 3.1%. Photo-induced doping is mainly accounted for this enhancement, as evidenced by transport, photoluminescence and quantum efficiency measurements. This work demonstrates a feasible way of designing solar cells with incorporating one dimensional and two dimensional materials.

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Xiaoqiang Li, Shengjiao Zhang, Peng Wang, Zhijuan Xu, Huikai Zhong, Zhiqian Wu, Shisheng Lin. 2015-05-06. Semiconductor quantum dots enhanced graphene/CdTe heterostructure solar cells by photo-induced doping. https://arxiv.org/abs/1505.01244

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