期刊
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
卷 93, 期 2, 页码 521-526出版社
SPRINGER HEIDELBERG
DOI: 10.1007/s00339-008-4756-z
关键词
-
资金
- Office of Naval Research (ONR)
Fluorine-doped tin oxide (FTO) thin films have been investigated as an alternative to indium tin oxide anodes in organic photovoltaic devices. The structural, electrical, and optical properties of the FTO films grown by pulsed laser deposition were studied as a function of oxygen deposition pressure. For 400 nm thick FTO films deposited at 300 degrees C and 6.7 Pa of oxygen, an electrical resistivity of 5x10(-4) Omega-cm, sheet resistance of 12.5 Omega/square, average transmittance of 87% in the visible range, and optical band gap of 4.25 eV were obtained. Organic photovoltaic (OPV) cells based on poly(3-hexylthiophene)/[6,6]-phenyl-C-61-butyric acid methyl ester bulk heterojunctions were prepared on FTO/glass electrodes and the device performance was investigated as a function of FTO film thickness. OPV cells fabricated on the optimum FTO anodes (similar to 300-600 nm thick) exhibited power conversion efficiencies of similar to 3%, which is comparable to the same device made on commercial ITO/glass electrodes (3.4%).
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