Optical and Magnetic Properties of ZnO Nanoparticles Doped with Co, Ni and Mn and Synthesized at Low Temperature

被引：25

作者：

Hancock, Jared M. ^{[1
]}

Rankin, William M. ^{[1
]}

Hammad, Talaat M. ^{[1
,2
]}

Salem, Jamil S. ^{[1
,3
]}

Chesnel, Karine ^{[4
]}

Harrison, Roger G. ^{[1
]}

机构：

[1] Brigham Young Univ, Dept Chem & Biochem, Provo, UT 84602 USA

[2] Al Azhar Univ, Dept Phys, Gaza, Israel

[3] Al Azhar Univ, Dept Chem, Gaza, Israel

[4] Brigham Young Univ, Dept Phys & Astron, Provo, UT 84602 USA

来源：

JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY | 2015年 / 15卷 / 05期

关键词：

Transition Metal Doping; Paramagnetism; Zinc Oxide; ZINC-OXIDE NANORODS; QUANTUM DOTS; NANOCRYSTALS; FERROMAGNETISM;

D O I：

10.1166/jnn.2015.9261

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Zinc oxide nanomaterials were synthesized with small amounts of magnetic ions to create dilute magnetic semiconductors (DMS), by using a low temperature sol-gel method. Conditions were controlled such that a range of amounts of Co, Ni and Mn were incorporated. The incorporation could be tracked by color changes in the powders to blue for Co, green for Ni and yellow for Mn. XRD measurements showed the ZnO has the wurtzite structure with crystallites 8-12 nm in diameter. Nanoparticles were observed by SEM and TEM and TEM showed that the lattice fringes of different nanoparticles align. Nanoparticle alignment was disrupted when high concentrations of metal dopants were incorporated. Magnetic measurements showed a change in behavior from diamagnetic to paramagnetic with increasing concentration of metal dopants.

引用

页码：3809 / 3815

页数：7

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