Journal
APPLIED PHYSICS LETTERS
Volume 94, Issue 12, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.3103557
Keywords
aluminium; carbon nanotubes; electrical resistivity; organic semiconductors; photovoltaic effects; solar cells; thin films; transparency
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Funding
- National Natural Science Foundation of China [50873074]
- University of Chinese Education Ministry [060232]
- Key Project of Chinese Ministry of Education [108029]
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Organic photovoltaic devices (OPD) using high conductive transparent few-walled carbon nanotubes (FWNT) film prepared by spraying was fabricated as a selective hole collection. Photovoltaic response with different sheet resistance (R-s) and the transparency (T) of FWNT film was investigated. Maximum efficiency of OPD up to 0.61% with the structure of FWNT (T=70%, R-s=86 Omega/square)/poly(3-hexylthiophene): [6-6]phenyl-C-61-butyric acid methyl ester/Al demonstrates a promising alternative of ITO (0.68%) with almost identical operation. The performance improvement results from the optimal balance between sheet resistance and transparency with three-dimensional network interface between nanotubes and polymers.
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