Facile synthesis of hierarchical ZnO:Tb3+ nanorod bundles and their optical and magnetic properties

被引：62

作者：

Li, Gao-Ren ^{[1
,2
]}

Lu, Xi-Hong ^{[1
]}

Su, Cheng-Yong ^{[1
]}

Tong, Ye-Xiang ^{[1
]}

机构：

[1] Sun Yat Sen Univ, Inst Optoelect & Funct Composite Mat, Sch Chem & Chem Engn, MOE Key Lab Bioorgan & Synthet chem, Guangzhou 510275, Guangdong, Peoples R China

[2] State Key Lab Rare Earth Mat Chem & Appl, Beijing 100871, Peoples R China

来源：

JOURNAL OF PHYSICAL CHEMISTRY C | 2008年 / 112卷 / 08期

关键词：

D O I：

10.1021/jp710519q

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：

Here we explored a facile electrodeposition route to prepare large-area ZnO:Tb3+ nanorod bundles in a solution of Zn(NO3)(2) + Th(NO3)(3) + CH3COONH4 at the temperature of 70 degrees C. The formation process of Zno:Tb3+ nanorod bundles was investigated. When the concentration of CH3COONH4 was increased, the density of the nanorod bundles was largely increased, and the number of nanorod in the bundles also increased. The prepared ZnO:Tb3+ nanorod bundles were characterized by SEM, EDS, TEM, HRTEM, SAED, XRD, and XPS. According to the data of the absorption spectra, the optical band gaps (E-g) of ZnO:Tb3+ were estimated to be 3.13 eV. The luminescence of the prepared ZnO:Tb3+ nanorod bundles indicates these deposits have a high optical property. The magnetic measurements show the magnetic properties of ZnO:Tb3+ nanorod bundles are obviously affected by the temperature, and the blocking temperature is about 225 K, above which the deposits are superparamagnetic.

引用

页码：2927 / 2933

页数：7

共 42 条

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