Magneto-optical characteristics of Mn-doped ZnO films deposited by ultrasonic spray pyrolysis

被引：14

作者：

Chen, Lung-Chien ^{[1
]}

Tien, Ching-Ho ^{[1
]}

Fu, Chia-Shien ^{[1
]}

机构：

[1] Natl Taipei Univ Technol, Dept Electroopt Engn, Taipei 106, Taiwan

来源：

MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING | 2012年 / 15卷 / 01期

关键词：

Mn-doped ZnO; Raman scattering; Interband magneto-optic absorption; Photoluminescence; Auger recombination; LIGHT-EMITTING-DIODES; THIN-FILMS; EXCHANGE INTERACTION; MAGNETIC-PROPERTIES; SPIN INJECTION; TEMPERATURE; PHOTOLUMINESCENCE; SUBSTRATE; GROWTH; GAP;

D O I：

10.1016/j.mssp.2011.04.003

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：

This work considers a Mn-doped ZnO (ZnO:Mn) film deposited on a slide glass substrate by ultrasonic spray pyrolysis. ZnO:Mn (Mn at 1.5 at%) film with and without an applied magnetic field, is demonstrated to have absorption edges at 2.74 and 2.84 eV, respectively. These values are lower than that of a pure ZnO film because the Mn-doping causes the exchange of s-d and p-d interactions or high carrier concentration. When the ZnO:Mn film is placed in a magnetic field B-z of 0.5 T, an absorption edge and a photoluminescence (PL) shift of about 0.1 eV and 85 meV, respectively, are observed. This shift is attributed to the interband magneto-optic absorption associated with the Landau splitting. The observed shift increases with the amount of Mn dopant. (c) 2011 Elsevier Ltd. All rights reserved.

引用

页码：80 / 85

页数：6

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