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. 2016 Dec 16;6:39163. doi: 10.1038/srep39163

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Copyright © 2016, The Author(s)

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(a) Schematic illustration of the investigated InGaP/InGaAs/Ge triple-junction solar cell. (b) Photograph of the InGaP/InGaAs/Ge triple-junction solar cell. (c) Schematic representation of the carrier injection from graphene quantum dots (GQDs) to the InGaP/InGaAs/Ge triple-junction solar cell.