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Research Article | Open Access

Intense violet–blue emission and paramagnetism of nanocrystallineGd3+ doped ZnO ceramics

Department of Physics, Pukyong National University, Busan 608-737, Republic of Korea
Department of Physics, Velammal Institute of Technology, Chennai 601204, India
Department of Physics, National Institute of Technology, Warangal, Telangana 506004, India
Rajiv Gandhi University of Knowledge Technologies, Nuzvid, Andhra Pradesh 521201, India
Institute of Applied Physics and Materials Engineering, University of Macau, Avenida da Universidade, Taipa, Macau, China
Department of Mechanical Convergence Engineering, Hanyang University, 17 Haengdang-dong, Seongdong-gu, Seoul 133-791, Republic of Korea
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Nanocrystalline Zn1-xGdxO (x=0, 0.02, 0.04, 0.06, and 0.08) ceramics were synthesized by ball milling and subsequent solid-state reaction. The transmission electron microscopy (TEM) micrograph of as synthesized samples revealed the formation of crystallites with an average diameter of 60 nm, and the selected area electron diffraction (SAED) pattern confirmed the formation of wurtzite structure. A red shift in the band gap was observed with increasing Gd3+ concentration. The photoluminescence of nanocrystalline Gd3+ doped ZnO exhibited a strong violet–blue emission. Concentration dependence of the emission intensity of Gd3+ in ZnO was studied, and the critical concentration was found to be 4 mol% of Gd3+. The Gd3+ doped ZnO exhibited paramagnetic behavior at room temperature, and the magnetic moment increased with Gd3+ concentration.


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Journal of Advanced Ceramics
Pages 300-306
Cite this article:
SAMBASIVAM S, PAUL JOSEPH D, ASIRI NAIDU S, et al. Intense violet–blue emission and paramagnetism of nanocrystallineGd3+ doped ZnO ceramics. Journal of Advanced Ceramics, 2015, 4(4): 300-306.








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Received: 17 April 2015
Revised: 19 July 2015
Accepted: 24 July 2015
Published: 24 November 2015
© The author(s) 2015

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