Using a low temperature crystallization process to prepare anatase TiO 2 buffer layers for air-stable inverted polymer solar cells

Jen Hsien Huang*, Hung Yu Wei, Kuan Chieh Huang, Cheng Lun Chen, Rui Ren Wang, Fang-Chung Chen, Kuo Chuan Ho, Chih Wei Chu

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

43 Scopus citations

Abstract

In this study, we fabricated inverted polymer solar cells featuring titanium dioxide (TiO 2 ) as the electron collection layer and vanadium (v) oxide (V 2 O 5 ) as the hole collection layer. TiO 2 films (anatase phase) were prepared by combining electrochemical deposition with high-pressure crystallization. The low temperature process used to obtain the TiO 2 films minimized interdiffusion of Ti and In species between the TiO 2 and ITO films and maintained the conductivity of the indium tin oxide substrate. The inverted device reached a power conversion efficiency of 3.22% and exhibited much better stability under ambient conditions relative to that of the corresponding conventional device.

Original languageEnglish
Pages (from-to)654-658
Number of pages5
JournalEnergy and Environmental Science
Volume3
Issue number5
DOIs
StatePublished - 12 May 2010

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