期刊
APPLIED PHYSICS LETTERS
卷 97, 期 8, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.3483159
关键词
anodes; organic compounds; solar cells; work function
资金
- National Nature Science Foundation of China [60807009]
- National High Technology Research and Development Program of China [2009AA03Z401]
- Doctoral Program of Higher Education [200801411038]
- Fundamental Research Funds for the Central Universities
CuI is used to control the molecular orientation of copper phthalocyanine (CuPc) and modify the anodes in organic solar cells based on CuPc/C(60). By introducing a CuI buffer between indium tin oxide and CuPc, the power conversion efficiency is significantly enhanced by a factor of similar to 70%. Because of the strong interactions between the CuI and CuPc, the stacking orientation of CuPc molecules is changed, resulting in a similar to 65% increase in absorption coefficient, a larger carrier mobility and a smoother film surface. The anode work function is raised by the formation of a dipole layer. (C) 2010 American Institute of Physics. [doi:10.1063/1.3483159]
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