Transparent conductive electrodes of mixed TiO2−x–indium tin oxide for organic photovoltaics

Kyu-Sung Lee, Jong-Wook Lim, Han-Ki Kim, T. L. Alford, Ghassan E. Jabbour

Research output: Contribution to journalArticlepeer-review

21 Scopus citations

Abstract

A 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.
Original languageEnglish (US)
Pages (from-to)213302
JournalApplied Physics Letters
Volume100
Issue number21
DOIs
StatePublished - May 22 2012

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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