Structural, optical, and magnetic properties of Mn-doped ZnO samples

被引：139

作者：

Ahmed, S. A. ^{[1
,2
]}

机构：

[1] Sohag Univ, Fac Sci, Phys Dept, Sohag 82524, Egypt

[2] Qassim Univ, Coll Arts & Sci, Phys Dept, PO 3137, Unayzah 51911, Saudi Arabia

来源：

RESULTS IN PHYSICS | 2017年 / 7卷

关键词：

Mn-doped ZnO; Optical properties; Magnetic properties; ROOM-TEMPERATURE FERROMAGNETISM; THIN-FILMS; NANOPARTICLES; PHOTOLUMINESCENCE; SEMICONDUCTORS; LUMINESCENCE; NANORODS; ORIGIN; SYSTEM; TRAPS;

D O I：

10.1016/j.rinp.2017.01.018

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

This study investigated the microstructure, optical, and magnetic properties of Zn1-xMnxO powder samples with x = 0.02-0.08 synthesized by a solid-state reaction route. X-ray diffraction revealed that the cell parameters, a and c, increased with the increase in Mn content, which indicated that Mn ions substitute into the lattice of ZnO. UV-vis measurements revealed that the band gap decreased due to the incorporation of Mn. Photoluminescence studies confirmed the formation of oxygen vacancies (V-O) in all samples. Magnetic measurements revealed that all samples exhibited room temperature ferromagnetism (RTFM), and the average magnetic moment per Mn atom decreased as the Mn content, and annealing temperature (T-A) increased. However, our results indicate that the ferromagnetic property is an intrinsic property of the ZnO: Mn samples due to V-O and/or defects, and it does not originate from any secondary magnetic phase. (C) 2017 The Author. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license.

引用

页码：604 / 610

页数：7

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