Journal
APPLIED PHYSICS LETTERS
Volume 104, Issue 4, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.4863683
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Funding
- National Natural Science Foundation of China [21106184]
- Science Foundation Research Funds Provided to New Recruitments of China University of Petroleum, Beijing [YJRC-2011-18, 01JB0227]
- Thousand Talents Program
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We have investigated the performance of Schottky junction solar cells based on silicon and graphene with 1-6 layers. The open-circuit voltage of solar cells shows an increase when increasing the number of graphene layers. However, the power conversion efficiency and short-circuit current density increase monotonically when the number of graphene layers is less than 4 and reduces as the number of graphene layers further increases. Our results demonstrate that the number of layers related to the work function and transmission of graphene plays a critical role in determining the performance of solar cells. (C) 2014 AIP Publishing LLC.
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