Transparent conductive electrodes of mixed TiO 2-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

23 Scopus citations

Abstract

A transparent conductive electrode of mixed titanium dioxide (TiO 2-x)-indium tin oxide (ITO) with an overall reduction in the use of indium metal is demonstrated. When used in organic photovoltaic devices based on bulk heterojunction photoactive layer of poly (3-hexylthiophene) and [6,6]-phenyl C 61 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 TiO 2-x-ITO electrode. The consumption of less indium allows for lower fabrication cost of such mixed thin film electrode.

Original languageEnglish
Article number213302
JournalApplied Physics Letters
Volume100
Issue number21
DOIs
StatePublished - 21 May 2012
Externally publishedYes

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