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Graphene–quantum dot composites. SEM images of the as-prepared samples of (A) CdS–5% graphene, (B) CdS–30% graphene, and (C) UV–vis diffuse reflectance spectra of the samples of blank-CdS and Cd-GR nanocomposites with different weight addition ratios. Reprinted with permission from ref 73. Copyright 2011 American Chemical Society.
