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| (top) PV devices with one-layer and seven-layer MoS2 were built on top of a silicon base and compared. Dielectric constants responsible for the difference in electrostatic potentials are shown in parenthesis. (bottom) The device with one-layer MoS2 (in the violet box) showed better performance in converting light to electric current than the seven-layer device (in the pink box). Image: IBS. |
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