S, N co-doped graphene quantum dots decorated ZnO nanorods for “Green” quantum dot sensitized solar cells
Tanmoy MajumderSaurab DharPinak ChakrabortySuvra Prakash Mondal
Abstract
In this article, we have synthesized N and S co-doped graphene quantum dots (SNGQDs) using low cost hydrothermal process. The particle size of SNGQDs is distributed within the range of 2-25 nm. Quantum dot sensitized solar cells (QDSSCs) were fabricated by attaching SNGQDs with ZnO nanorods grown on fluorine doped tin oxide (FTO) coated glass substrates. The SNGQDs sensitized ZnO NR photoanodes demonstrated power conversion efficiency ∼0.27%, which was 7 times higher than pristine ZnO nanorod based device.
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