Dehai Wu

Feiyu Kang

Hongwei Zhu

Kunlin Wang

Ruitao Lv

Tongxiang Cui

Zexia Zhang

Journal of Nanomaterials

English

Four different graphene films were synthesized via chemical vapor deposition by using acetonitrile with feed rates of 0.01, 0.02, 0.04, and 0.06 mL/min. Heterojunction solar cells were assembled by transferring as-synthesized graphene films onton-Si. Solar cells based on graphene samples produced at 0.01, 0.02, 0.04, and 0.06 mL/min demonstrate power conversion efficiencies of 2.26%, 2.10%, 1.02%, and 0.94%, respectively. When HNO3was used to dope the graphene films, the corresponding photovoltaic efficiencies were increased to 4.98%, 4.19%, 2.04%, and 1.74%, respectively. Mechanism for the improved efficiency of graphene/Si heterojunction solar cells was also investigated.</jats:p

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Improved Efficiency of Graphene/Si Heterojunction Solar Cells by Optimizing Hydrocarbon Feed Rate

http://downloads.hindawi.com/journals/jnm/2014/359305.pdf

Improved Efficiency of Graphene/Si Heterojunction Solar Cells by Optimizing Hydrocarbon Feed Rate

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