Effect of Mn-doping on the growth mechanism and electromagnetic properties of chrysanthemum-like ZnO nanowire clusters

doi:10.1088/1674-1056/20/4/048102

中国物理B ›› 2011, Vol. 20 ›› Issue (4): 48102-048102.doi: 10.1088/1674-1056/20/4/048102

Effect of Mn-doping on the growth mechanism and electromagnetic properties of chrysanthemum-like ZnO nanowire clusters

游天桂¹, 田江晓¹, 闫军锋², 张志勇², 贠江妮², 赵武²

(1)School of Information Science and Technology, Northwest University, Xi'an 710069, China; (2)School of Information Science and Technology, Northwest University, Xi'an 710069, China;Key Laboratory of Optoelectronic Technology of Shaanxi Province, Northwest University, Xi'an 710069, China

收稿日期:2010-09-28 修回日期:2010-12-07 出版日期:2011-04-15 发布日期:2011-04-15
基金资助:
Project supported by the National Natural Science Foundation of China (Grant No. 60976069), the Natural Science Foundation of Shaanxi Province, China (Grant No. 2010JM6008), and the Xi'an Scientific and Technological Project, China (Grant No. CXY1008).

Effect of Mn-doping on the growth mechanism and electromagnetic properties of chrysanthemum-like ZnO nanowire clusters

Yan Jun-Feng(闫军锋)^a)b),You Tian-Gui(游天桂)^a), Zhang Zhi-Yong(张志勇)^a)b)^†, Tian Jiang-Xiao(田江晓)^a),Yun Jiang-Ni(贠江妮)^a)b),and Zhao Wu(赵武)^a)b)

^a School of Information Science and Technology, Northwest University, Xi'an 710069, China; ^b Key Laboratory of Optoelectronic Technology of Shaanxi Province, Northwest University, Xi'an 710069, China

Received:2010-09-28 Revised:2010-12-07 Online:2011-04-15 Published:2011-04-15
Supported by:
Project supported by the National Natural Science Foundation of China (Grant No. 60976069), the Natural Science Foundation of Shaanxi Province, China (Grant No. 2010JM6008), and the Xi'an Scientific and Technological Project, China (Grant No. CXY1008).

摘要/Abstract

摘要： Chrysanthemum-like ZnO nanowire clusters with different Mn-doping concentrations are prepared by a hydrothermal process. The microstructure, morphology and electromagnetic properties are characterized by x-ray diffractometer high-resolution transmission electron microscopy (HRTEM), a field emission environment scanning electron microscope (FEESEM) and a microwave vector network analyser respectively. The experimental results indicate that the as-prepared products are Mn-doped ZnO single crystalline with a hexagonal wurtzite structure, that the growth habit changes due to Mn-doping and that a good magnetic loss property is found in the Mn-doped ZnO products, and the average magnetic loss tangent tanδ_m is up to 0.170099 for 3% Mn-doping, while the dielectric loss tangent tanδ_e is weakened, owing to the fact that ions Mn^{2 +}enter the crystal lattice of ZnO.

关键词: chrysanthemum-like ZnO nanowire clusters, electromagnetic properties, hydrothermal method, Mn-doping

Abstract: Chrysanthemum-like ZnO nanowire clusters with different Mn-doping concentrations are prepared by a hydrothermal process. The microstructure, morphology and electromagnetic properties are characterized by x-ray diffractometer high-resolution transmission electron microscopy (HRTEM), a field emission environment scanning electron microscope (FEESEM) and a microwave vector network analyser respectively. The experimental results indicate that the as-prepared products are Mn-doped ZnO single crystalline with a hexagonal wurtzite structure, that the growth habit changes due to Mn-doping and that a good magnetic loss property is found in the Mn-doped ZnO products, and the average magnetic loss tangent tan$\delta$_m is up to 0.170099 for 3% Mn-doping, while the dielectric loss tangent tanδ_e is weakened, owing to the fact that ions Mn²⁺enter the crystal lattice of ZnO.

Key words: chrysanthemum-like ZnO nanowire clusters, electromagnetic properties, hydrothermal method, Mn-doping

中图分类号: (Growth from solutions)

81.10.Dn

81.07.Gf (Nanowires) 81.16.Dn (Self-assembly) 77.22.Gm (Dielectric loss and relaxation)

闫军锋, 游天桂, 张志勇, 田江晓, 贠江妮, 赵武. Effect of Mn-doping on the growth mechanism and electromagnetic properties of chrysanthemum-like ZnO nanowire clusters[J]. 中国物理B, 2011, 20(4): 48102-048102.

Yan Jun-Feng(闫军锋), You Tian-Gui(游天桂), Zhang Zhi-Yong(张志勇), Tian Jiang-Xiao(田江晓), Yun Jiang-Ni(贠江妮), and Zhao Wu(赵武) . Effect of Mn-doping on the growth mechanism and electromagnetic properties of chrysanthemum-like ZnO nanowire clusters[J]. Chin. Phys. B, 2011, 20(4): 48102-048102.

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Effect of Mn-doping on the growth mechanism and electromagnetic properties of chrysanthemum-like ZnO nanowire clusters

Effect of Mn-doping on the growth mechanism and electromagnetic properties of chrysanthemum-like ZnO nanowire clusters

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