Fabrication of ZnO Thin Films by Sol-Gel Spin Coating and Their UV and White-Light Emission Properties

被引：17

作者：

Kumar, Mirgender ^{[1
]}

Dubey, Sarvesh ^{[2
]}

Rajendar, Vanga ^{[1
]}

Park, Si-Hyun ^{[1
]}

机构：

[1] Yeungnam Univ, Dept Elect Engn, Gyongsan 38541, South Korea

[2] Shri Ramswaroop Mem Univ, Fac Elect & Commun Engn, Deva Rd, Lucknow, Uttar Pradesh, India

来源：

JOURNAL OF ELECTRONIC MATERIALS | 2017年 / 46卷 / 10期

关键词：

ZnO thin films; sol-gel method; white-light emission; annealing process; PHOTOLUMINESCENCE; CATHODOLUMINESCENCE; DEPOSITION; MECHANISM;

D O I：

10.1007/s11664-017-5565-y

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

ZnO thin films have been fabricated by the sol-gel spin-coating technique and annealed under different conditions, and their ultraviolet (UV) and white-light emission properties investigated. Different ambient conditions including oxygen, nitrogen, zinc-rich nitrogen, and vacuum were used to tune the main properties of the ZnO thin films. The resistivity varied from the conductive to semi-insulating regime, and the luminescence emission from fairly intense UV to polychromatic. The emission intensity was also found to be a function of the annealing conditions. Possible routes to compensate the loss of emission characteristics are discussed. X-ray photoelectron spectroscopy (XPS) analysis was carried out to detect the chemical states of the zinc/oxygen species. The changes in the electrical and emission properties are explained based on annihilation/formation of inherent donor/acceptor-type defects. Such ZnO thin films could have potential applications in solid-state lighting.

引用

页码：6029 / 6037

页数：9

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