Synthesis and luminescence properties of Ho3+ doped Y2O3 submicron particles
- Authors
- Atabaev, Timur Sh; Hong-Ha Thi Vu; Kim, Yang-Do; Lee, Jae-Ho; Kim, Hyung-Kook; Hwang, Yoon-Hwae
- Issue Date
- Feb-2012
- Publisher
- PERGAMON-ELSEVIER SCIENCE LTD
- Keywords
- Optical materials; Oxides; Luminescence
- Citation
- JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS, v.73, no.2, pp.176 - 181
- Journal Title
- JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
- Volume
- 73
- Number
- 2
- Start Page
- 176
- End Page
- 181
- URI
- https://scholarworks.bwise.kr/hongik/handle/2020.sw.hongik/19023
- DOI
- 10.1016/j.jpcs.2011.11.010
- ISSN
- 0022-3697
- Abstract
- This paper presents comprehensive results of the eco-friendly, large scale fabrication of nearly spherical Ho3+-doped Y2O3 submicron particles, synthesized using the urea homogeneous precipitation method. The dependence of the photoluminescence emission on the doping concentration was examined to determine the optimum Ho3+ concentration in the samples. X-ray diffraction data of the Y2O3:Ho3+ particles revealed a cubic Y2O3 structure. Field emission scanning electron microscopy confirmed the formation of nearly spherical shape particles with a mean diameter of 200 +/- 50 nm. The luminescence emission intensity significantly increased with increasing calcination temperature due to the improved crystallinity of the synthesized particles. Strong visible green-yellowish emission due to F-5(4); S-5(2)-I-5(8) Stokes transitions was observed under constant 450 nm excitation. Simple large scale fabrication along with the strong visible green-yellowish emission might give these particles wide area of applications. (C) 2011 Elsevier Ltd. All rights reserved.
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Collections - College of Engineering > Materials Science and Engineering Major > 1. Journal Articles
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