Optical and electrical characterization of gradient AZO thin film by magnetron sputtering

Autor: Bing Wang, Jia-heng Feng, Li-dan Tang, Bin Zhao, Bang-wu Liu
Rok vydání: 2016
Předmět:
Zdroj: Journal of Materials Science: Materials in Electronics. 27:10320-10324
ISSN: 1573-482X
0957-4522
DOI: 10.1007/s10854-016-5115-z
Popis: Gradient Al-doped ZnO (AZO) thin films were deposited by magnetron sputtering. The effects of Al concentration gradient on the structure, optical and electrical properties of gradient AZO films were investigated by X-ray diffraction, X-ray photoelectron spectroscopy, four probe tester and UV–visible spectrophotometer. Results show that all of the gradient AZO films have the hexagonal wurtzite structure with c axis preferential orientation and no other secondary phase exits. With the increase of the Al concentration gradient, the resistivity of AZO thin films deteriorates. The resistivity was least, 1.18 × 10−2 Ω cm, for magnetron sputtering-gradient AZO films at 0.02 % nm−1 Al concentration gradient. The average transmittance of the gradient AZO thin films on the glasses in the band of visible light is about 80 %.
Databáze: OpenAIRE