Effects of substrate temperature on the optical properties of vacuum evaporated ZnO thin films

被引：0
|
作者：
Chowdhury, F. [1 ]
Begum, Kh. S. [1 ]
Hasan, S. M. Firoz [1 ]
Alam, M. S. [2 ,3 ]
机构：
[1] Bangladesh Atom Energy Comiss, Expt Phys Div, Atom Energy Ctr, Dhaka 1000, Bangladesh
[2] Univ Dhaka, Dept Phys, Dhaka 1000, Bangladesh
[3] Univ Erlangen Nurnberg, Dept Phys, D-91058 Erlangen, Germany
来源：
OPTOELECTRONICS AND ADVANCED MATERIALS-RAPID COMMUNICATIONS | 2011年 / 5卷 / 3-4期
关键词：
ZnO thin film; Vacuum evaporation; Optical properties; Urbach energy; ZINC-OXIDE FILMS;
D O I：
暂无
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
ZnO thin films were grown onto chemically and ultrasonically cleaned heated and unheated glass substrates in a vacuum of 10(-6) mbar by using oil diffusion pump. The optical properties of the films have been ascertained by UV-VIS-NIR spectrophotometry in the photon wavelength range of 300 - 2500 nm. The effect of substrate temperature on the optical properties of the films has been investigated, where all film thickness was kept fixed at 100 +/- 10 nm. Bang gap and Urbach energy values of the films were calculated. Surface topography studied by Atomic Force Microscopy (AFM) measurements showed a uniform film texture. The extent and nature of transmittance and optimized band gap of the material make possible to use it for optoelectronic applications.
引用
收藏
页码：356 / 359
页数：4
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