Transparent conductive Al-doped ZnO films for liquid crystal displays
Abstract
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.
- Publication:
-
Journal of Applied Physics
- Pub Date:
- June 2006
- DOI:
- 10.1063/1.2206417
- Bibcode:
- 2006JAP....99l4505O
- Keywords:
-
- 73.61.Ga;
- 78.66.Hf;
- 78.20.Jq;
- 78.20.Ci;
- 85.60.Pg;
- II-VI semiconductors;
- II-VI semiconductors;
- Electrooptical effects;
- Optical constants;
- Display systems