Paper Title:
The Optical Properties of Sputtered ZnO Films
  Abstract

The ZnO films were deposited on quartz glass substrate by RF magnetron sputtering. The ZnO films are highly c-axis oriented with the (002) plane parallel to the substrate. The grains size estimated by the XRD diffraction rises with increase in the Ar/O2 ratio. The optical absorption edge and the near absorption edge characteristics of ZnO films have also been investigated. The optical band gaps of the films have been evaluated from the absorption coefficient of ZnO films. It is found that the value of the optical band gap varys from 3.26 eV to 3.32 eV due to the energy gap enhancement induced by quantum confinement. This variation of band gap can be explained with the theory developed by Brus. For all the films, the absorption coefficient shows the Urbach exponential dependence in the near band edge regime. It is also observed that the value E0 decreases with the Ar/O2 ratio increasing.

  Info
Periodical
Advanced Materials Research (Volumes 97-101)
Edited by
Zhengyi Jiang and Chunliang Zhang
Pages
1425-1428
DOI
10.4028/www.scientific.net/AMR.97-101.1425
Citation
B. Huang, G. N. He, H. D. Yang, "The Optical Properties of Sputtered ZnO Films", Advanced Materials Research, Vols. 97-101, pp. 1425-1428, 2010
Online since
March 2010
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Onanong Chamlek, S. Pratontep, Teerakiat Kerdcharoen, Tanakorn Osotchan
Abstract:Iron phthalocyanine (FePc) thin films prepared by thermally evaporated from as received and purified powders were studied. The molecular...
301
Authors: Gaurang Patel, M.B. Sureshkumar, Purvi Patel
Chapter 11: Materials Behavior
Abstract:The transmittance, absorbance, and reflectance of PMMA/TiO2 composites, in different weight percentage of TiO2, prepared by a solution cast...
3249
Authors: Hai Lang Ju, Zong Liang Mao
Chapter 2: Optical Materials and Devices
Abstract:LiNbO3 is an important crystal which has piezoelectric, ferroelectric and electro-optical functions. It has a wide range of applications....
87
Authors: Qiang Wang, Ling Na Sun, Chang Wen Hu, Chuan Bao Cao
Chapter 1: Material Engineering and its Application Technology
Abstract:With the continuous development of Electronic Warfare Technology (ECM) and new requirements of military modernization, stealthy technology...
73