Performance improvement of electrochromic display devices employing micro-size precipitates of tungsten oxide

Chin Pao Cheng, Yi Kuo, Chuan Pu Chou, Chun Hu Cheng, Tun Ping Teng

Research output: Contribution to journalArticle

4 Citations (Scopus)


In this paper, we studied the effect of micro-size WO3 precipitates on the electrochromic characteristics based on aging test. The electrochromic mechanism can be effectively investigated by a solid-state TaN/WO3/ITO capacitor. The experimental results reveal that WO 3 electrochromic devices with optimized aging time of 4 days exhibit a higher optical contrast and longer retention time, which is mainly attributed to the formation of micro-size WO3 precipitates during aging process. The performance improvement using micro-size WO3 precipitates has the potential in future large-area window or energy efficient display applications.

Original languageEnglish
Pages (from-to)1553-1559
Number of pages7
JournalApplied Physics A: Materials Science and Processing
Issue number4
Publication statusPublished - 2014 Sep


ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Science(all)

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