Nano Archive

The microstructure and photoluminescence of Cu-doped ZnO nano-crystal thin films prepared by sol-gel method

Wang, DY and Zhou, J and Liu, GZ (2009) The microstructure and photoluminescence of Cu-doped ZnO nano-crystal thin films prepared by sol-gel method. JOURNAL OF ALLOYS AND COMPOUNDS , 487 (1-2). ISSN 0925-8388

Full text is not hosted in this archive but may be available via the Official URL, or by requesting a copy from the corresponding author.

Abstract

This paper is concerned with Cu-doped nano-crystal ZnO thin films deposited on Si(100) substrates and prepared by sol-gel method. The analyses of these thin film samples with X-ray diffraction (XRD) and scanning electron microscopy (SEM) reveal that these thin films have polycrystalline wurtzite structures and high c-axis preferred orientation. The photoluminescence (PL) spectra of thin film samples at room temperature show that these thin films have strong emission near ultraviolet (UV) and weak defect-related deep level emission in visible regions. These thin film samples have high UV-to-visible emission ratio (about 13-15). In addition, the influence of Cu-doped concentration and annealing condition upon the structural and optical properties of these samples are also discussed in this paper.

Item Type:Article
Subjects:Material Science > Nanostructured materials
ID Code:8254
Deposited By:CSMNT
Deposited On:12 Feb 2010 15:01
Last Modified:12 Feb 2010 15:01

Repository Staff Only: item control page