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.
CITATION STYLE
Li, Y. F., Yang, W., Tu, Z. Q., Liu, Z. C., Yang, F., Zhang, L. Q., & Hatakeyama, R. (2014). Schottky junction solar cells based on graphene with different numbers of layers. Applied Physics Letters, 104(4). https://doi.org/10.1063/1.4863683
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