Preparation and characterization of Co-doped ZnO nanomaterials

被引：77

作者：

Yang, Huaming ^{[1
]}

Nie, Sha ^{[1
]}

机构：

[1] Cent S Univ, Sch Resources Proc & Bioengn, Dept Inorgan Mat, Changsha 410083, Peoples R China

来源：

MATERIALS CHEMISTRY AND PHYSICS | 2009年 / 114卷 / 01期

关键词：

Zinc oxide; Cobalt; Doping; Freeze-drying; Optical properties;

D O I：

10.1016/j.matchemphys.2008.09.017

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Freeze-drying is a convenient cryochemical powder processing method. In this paper, Co-doped ZnO nanomaterials (CZN) with Co content from 2 mol% to 10 mol% have been successfully synthesized via a novel freeze-drying route. X-ray diffraction (XRD), transmission electronic microscopy (TEM) and high-resolution TEM (HRTEM) were used to characterize the structure and morphology of the as-synthesized samples. All samples have a similar hexagonal wurtzite phase without metal cobalt, cobalt oxides or composites in the samples with Co concentration below 6 mol%. TEM image shows that CZN (4 mol% Co) is nanometer scale with average crystal size of 40 nm. Samples have a spherical morphology with moderate aggregation. The band gap energy of CZN from ultraviolet-visible (UV-vis) spectroscopy decreases with increasing the Co doping concentration. (c) 2008 Elsevier B.V. All rights reserved.

引用

页码：279 / 282

页数：4

共 50 条

[41] Microstructure and Electrical Properties of Co-Doped ZnO Varistors [J].

Hamdelou, S. ;

Guergouri, K. .

JOURNAL OF CERAMIC SCIENCE AND TECHNOLOGY, 2016, 7 (04) :357-363

[42] The Electrical Properties of Co-Doped ZnO Thin Films [J].

Hamid, H. A. ;

Abdullah, M. J. ;

Aziz, A. A. .

INTERNATIONAL CONFERENCE ON ADVANCEMENT OF MATERIALS AND NANOTECHNOLOGY 2007, 2010, 1217 :171-175

[43] Structure and ferromagnetic properties of Co-doped ZnO powders [J].

Xu, Xingyan ;

Cao, Chuanbao .

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2009, 321 (14) :2216-2219

[44] Characterization of Ce3+ and Eu3+ doped and co-doped ZnO nanoparticles for luminescence applications [J].

Sharma, Nikita ;

Sahay, P. P. .

PHYSICA SCRIPTA, 2024, 99 (04)

[45] Synthesis and Structural Properties of (Co, Al) Co-Doped ZnO Nanoparticles [J].

Swapna, P. ;

Reddy, S. Venkatramana .

ADVANCED SCIENCE LETTERS, 2018, 24 (08) :5636-5639

[46] Effect of Co doping on the physical properties of Co-doped ZnO nanoparticles [J].

Kayanil, Zohra N. ;

Shah, Iqra ;

Riaz, Saira ;

Naseem, Shahzad .

JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS, 2017, 28 (08) :5953-5961

[47] Transition metal (Co, Mn) co-doped ZnO nanoparticles: Effect on structural and optical properties [J].

Sharma, Darshan ;

Jha, Ranjana .

JOURNAL OF ALLOYS AND COMPOUNDS, 2017, 698 :532-538

[48] Physical Investigations of (Co, Mn) Co-Doped ZnO Nanocrystalline Films [J].

Yahmadi, Bechir ;

Kamoun, Olfa ;

Alhalaili, Badriyah ;

Alleg, Safia ;

Vidu, Ruxandra ;

Turki, Najoua Kamoun .

NANOMATERIALS, 2020, 10 (08) :1-13

[49] The room temperature ferromagnetism of (N, Co) co-doped ZnO nanopaticles [J].

Cao, Ping ;

Bai, Yue ;

Qu, Zhi .

APPLIED DECISIONS IN AREA OF MECHANICAL ENGINEERING AND INDUSTRIAL MANUFACTURING, 2014, 577 :19-+

[50] Physical structure and optical properties of Co-doped ZnO nanoparticles prepared by co-precipitation [J].

He, Rongliang ;

Tang, Bin ;

Ton-That, Cuong ;

Phillips, Matthew ;

Tsuzuki, Takuya .

JOURNAL OF NANOPARTICLE RESEARCH, 2013, 15 (11)

← 1 2 3 4 5 →