Transparent conductive Al-doped ZnO films for liquid crystal displays

Byeong Yun Oh, Min Chang Jeong, Tae Hyoung Moon, Woong Lee, Jae Min Myoung, Jeoung Yeon Hwang, Dae Shik Seo

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236 Citations (Scopus)


Al-doped zinc oxide (ZnO:Al) films were applied to liquid crystal displays (LCDs) as transparent electrodes substituting indium tin oxide (ITO). While the ZnO:Al-based twisted nematic LCD cell showed similar operational behavior to ITO-based counterpart, its electro-optical (EO) and residual dc (r-dc) characteristics were somewhat improved. Capacitance-voltage relations suggested that these improved EO and r-dc characteristics of the ZnO:Al-based LCD cell are due to the substantially lower density of charge carrier trapping centers in the polyimide layer/electrode interface region, demonstrating high application potential of ZnO:Al films as transparent electrodes of LCDs.

Original languageEnglish
Article number124505
JournalJournal of Applied Physics
Issue number12
Publication statusPublished - 2006

Bibliographical note

Funding Information:
This work was supported by the NGE (Next Growth Engine) project.

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)


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