Investigation of phase segregation in yttrium doped zinc oxide

被引:37
|
作者
Kumar, Parmod [1 ,2 ]
Singh, Vikram [3 ]
Sharma, Vikas [4 ]
Rana, Geeta [5 ]
Malik, Hitendra K. [1 ]
Asokan, K. [2 ]
机构
[1] Indian Inst Technol, Dept Phys, New Delhi 110016, India
[2] Inter Univ Accelerator Ctr, Div Mat Sci, New Delhi 110067, India
[3] Natl Inst Technol, Dept Phys, Kurukshetra 136119, Haryana, India
[4] Malaviya Natl Inst Technol, Dept Phys, Jaipur 302017, Rajasthan, India
[5] GB Pant Univ Ag & Tech, Dept Phys, Pantnagar 263145, Uttar Pradesh, India
关键词
Crystal structure; Rare earth doping; Phase segregation; Raman spectroscopy; MAGNETIC-PROPERTIES; ZNO NANOPARTICLES; ENHANCED UV; FILMS; EMISSION;
D O I
10.1016/j.ceramint.2015.01.117
中图分类号
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
We report the effect of phase segregation on the structural, morphological, and optical properties of sol gel synthesized Zn1-xYxO samples in dilute concentration of 1-5%. X-ray diffraction patterns confirm that below 3% of Y doping, pure ZnO wurtzite structure phase is obtained and phase segregation of Y2O3 appears at x >= 0.03. XRD results are well supported by the results obtained from scanning electron microscopy, Photoluminescence and Raman spectroscopy techniques. The difference in the charge states, ionic radii and the coordination numbers of host lattice and dopant ions leads to the phase segregation. (C) 2015 Elsevier Ltd and Techna Group S.r.l. All rights reserved.
引用
收藏
页码:6734 / 6739
页数:6
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