The effect of bending on the electrical and optical characteristics of aluminum-doped ZnO films deposited on flexible substrates

Zong Liang Tseng, Yi Chun Tsai, Sean Wu, Yung Der Juang, Sheng-Yuan Chu

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

In this paper, electromechnical study is conducted on the performance of aluminum-doped zinc oxide film deposited on poly(ether sulfone) (PES) substrates using RF magnetron sputtering method. The change in electrical and optical properities due to face-out (FO) bending and face-in (FI) bending is investigated and a simple model method is proposed to understand the failure mechanisms. Static bending test and repeated bending test results show that the AZO films deposited on PES substrates can tolerate greater mechanical bending in the FO direction than that in the FI direction. When the value of strain is over 0.01, the resistivity increases significantly and cracks form. Accordingly, a 0.01 strain limit can be safely considered as a design parameter for projecting devices deposited on flexible substrates.

Original languageEnglish
JournalECS Journal of Solid State Science and Technology
Volume2
Issue number1
DOIs
Publication statusPublished - 2013 Nov 18

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials

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