期刊
SOLAR ENERGY MATERIALS AND SOLAR CELLS
卷 94, 期 12, 页码 2148-2153出版社
ELSEVIER
DOI: 10.1016/j.solmat.2010.07.001
关键词
SPFGraphene; f-MWCNTs; Charge
资金
- National Outstanding Youth Science Foundation [60825407]
- National Natural Science Fund [60877025]
- Beijing Science and Technology Committee [Z08000303220803, D090803044009001]
- Beijing Natural Science Fund [2092024]
Solution-processable functionalized graphene (SPFGraphene) and functionalized multiwalled carbon nanotubes(f-MWCNTs) are introduced for heterojunction solar cell. The performance of the device has improved by the incorporation of both SPFGraphene and f-MWCNTs. The open-circuit voltage (V-oc), short-circuit current density (J(sc)), fill factor (FF) and power conversion efficiency (eta) were 0.67 V, 4.7 mA/cm(2), 32%, and 1.05%, respectively. Here, we expect that SPFGraphene acts as exciton dissociation and provide percolation paths for electron transfer, whereas f-MWCNTs provide efficient hole transportation. SPFGraphene and f-MWCNTs incorporation yields better carrier mobility, easy exciton splitting, and suppression of charge recombination, thereby improving photovoltaic action. (C) 2010 Elsevier B.V. All rights reserved.
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