Transparent conductive electrodes of mixed TiO2−x–indium tin oxide for organic photovoltaics
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AbstractA transparent conductive electrode of mixed titanium dioxide (TiO2−x)–indium tin oxide (ITO) with an overall reduction in the use of indium metal is demonstrated. When used in organic photovoltaicdevices based on bulk heterojunction photoactive layer of poly (3-hexylthiophene) and [6,6]-phenyl C61 butyric acid methyl ester, a power conversion efficiency of 3.67% was obtained, a value comparable to devices having sputtered ITO electrode. Surface roughness and optical efficiency are improved when using the mixed TiO2−x–ITO electrode. The consumption of less indium allows for lower fabrication cost of such mixed thin filmelectrode.
CitationTransparent conductive electrodes of mixed TiO2−x–indium tin oxide for organic photovoltaics 2012, 100 (21):213302 Applied Physics Letters
JournalApplied Physics Letters