Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1651810 | Materials Letters | 2007 | 4 Pages |
Abstract
Al-doped zinc oxide (AZO) thin films have been prepared via a sol-gel process. Optical and photoluminescent properties of the AZO films have been investigated. The UV absorption edge was blue shifted with increasing Al doping concentration. Efficient green–yellow emission was obtained after annealing at 850 °C. For the 850 °C-annealed samples, the green peak was red shifted from 518 to 565 nm as the Al doping concentration increased from 0 to 2.0 at.%. In addition, violet emission in the range of 400–450 nm was observed in the 850 °C-annealed AZO films. The possible origins responsible for these emission bands have been discussed.
Related Topics
Physical Sciences and Engineering
Materials Science
Nanotechnology
Authors
Mingsong Wang, Ka Eun Lee, Sung Hong Hahn, Eui Jung Kim, Sunwook Kim, Jin Suk Chung, Eun Woo Shin, Chinho Park,