2020 · Applied Physics Letters 117, 053902
Theoretical efficiency limit of graphene–semiconductor solar cells
In brief
A single-author calculation of the maximum power conversion efficiency of solar cells built from graphene on a conventional semiconductor, based on the scaling laws for thermionic emission across 2D/3D Schottky junctions.
Key results- Under ideal conditions efficiency exceeds 25% for bandgaps between 1.1 and 1.7 eV.
- Efficiency limits: 25.5% for graphene/silicon and 27.5% for graphene/GaAs.
- Efficiency falls almost linearly with temperature: 0.076 %/K (graphene/Si) and 0.058 %/K (graphene/GaAs).
M. Javadi, "Theoretical efficiency limit of graphene–semiconductor solar cells," Applied Physics Letters 117, 053902 (2020). https://doi.org/10.1063/5.0020080
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