One-dimensional cube-shape CoxZn1-xO nanostructures and their optical properties

被引：2
作者：
Zhang, Jun [1 ]
Jiang, Feihong [1 ]
机构：
[1] Yantai Univ, Key Lab Optoelect Informat Tech Shandong, Inst Optoelect Informat Sci & Tech, Yantai 264005, Peoples R China
来源：
JOURNAL OF ALLOYS AND COMPOUNDS | 2017年 / 691卷
基金：
中国国家自然科学基金;
关键词：
Nanocrystalline materials; Cube-shape; Raman spectrum; Photoluminescence; Longitudinal optical phonon replicas; Free exciton; CO-DOPED ZNO; DILUTED MAGNETIC SEMICONDUCTORS; SPECTROSCOPIC ELLIPSOMETRY; THIN-FILMS; FERROMAGNETISM; NANOWIRES; MODEL;
D O I：
10.1016/j.jallcom.2016.08.308
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
One-dimensional cube-shape CoxZn1-xO nanowires have been fabricated through vapor-solid deposition process. Scanning electron microscopy observations reveal that the products consist of a large quantity of cube-shape nanostructures with typical lengths in the range of several tens to several hundreds of micrometers. The room-temperature Raman spectra of CoxZn1-xO exhibited the presence of lattice defects in the system. The photoluminescence properties of CoxZn1-xO nanowires under 10 K-110 K were investigated. The results show that there is an intensive ultraviolet multi-peaks emission under low temperature. The multi-peak emissions are mainly attributed to longitudinal optical phonon replicas of free exciton. The multi-peaks emission in ultraviolet region will exhibit redshift with the increasing temperature. A U-shaped behavior of the full width at half maximum (FWHM) value of the FX-1LO emission peaks at 10 K-110 K was shown. (C) 2016 Elsevier B.V. All rights reserved.
引用
收藏
页码：587 / 591
页数：5
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