Controlled synthesis of ZnS quantum dots and ZnS quantum flakes with graphene as a template |
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| Authors: | Li Caixia Jiang Danyu Zhang Linlin Xia Jinfeng Li Qiang |
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| Institution: | Department of Chemistry, East China Normal University, Shanghai 200062, China. |
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| Abstract: | Novel ZnS quantum dots (QDs) and ZnS quantum flakes (QFs) were successfully prepared with graphene nanosheets (GNs) as a special template, and two unique heterostructures of ZnS/GNs were also obtained. Due to the structure-directing template effect of GNs, the as-synthesized ZnS with different morphologies, dots or flakes, were uniformly distributed on the surface of GNs by controlling nucleation and growth. The two different heterostructures of ZnS/GNs exhibited obvious photovoltaic response, and ZnS/GN QFs-on-sheet heterostructures show higher photovoltage than that of ZnS/GN QDs-on-sheet. |
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