Effect of Trisodium Citrate on the Morphology and Luminescence Properties of Hydrothermally Synthesized YVO₄ Phosphor

• Authors: Sa Zhang , Yan Liang , Xiaoyong Gao
• Languages of publication: EN

Abstracts

EN

YVO₄ phosphors with different morphologies were synthesized by trisodium citrate (Na₃cit) surfactant-assisted hydrothermal process. Effects of molar ratio of cit^{3-} to Y^{3+} and pH value of reaction solution were intensively investigated on the morphologies, structures and luminescence properties of YVO₄ phosphor. The morphologies of the YVO₄ particles can be effectively controlled in strong acidic and strong alkaline environment by affecting the adsorption of cit^{3-} on the (001) crystal plane of YVO₄. Strong acidic condition resulted into excessive adsorption of cit^{3-} groups on the YVO₄ phosphor, which annihilated the superior luminescence of YVO₄ phosphors. On the contrary, strong alkaline condition does not result into the adsorption of cit^{3-} groups. The synthesized YVO₄ phosphor without adsorption of cit^{3-} groups showed superior luminescence even though the effective control of the morphology in alkaline condition is not so good as in strong acidic condition.

Keywords

EN

78.55.-m; 61.05.cp; 68.37.Hk; 78.30.-j

Discipline

• 61.05.cp: X-ray diffraction
• 68.37.Hk: Scanning electron microscopy (SEM) (including EBIC)
• 78.30.-j: Infrared and Raman spectra(for vibrational states in crystals and disordered systems, see 63.20.-e and 63.50.-x, respectively; for Raman spectra of superconductors, see 74.25.nd)
• 78.55.-m: Photoluminescence, properties and materials(for time resolved luminescence, see 78.47.jd)

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2016
• Volume: 129
• Issue: 1
• Pages: 79-83

Dates

published

2016-01

received

2015-03-12

(unknown)

2015-12-24

Contributors

author

Sa Zhang

• School of Physics and Engineering, Zhengzhou University, Zhengzhou 450052, China

author

Yan Liang

• College of Information Science and Engineering, Henan University of Technology, Zhengzhou 450001, China

author

Xiaoyong Gao

• School of Physics and Engineering, Zhengzhou University, Zhengzhou 450052, China

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Identifiers

DOI

10.12693/APhysPolA.129.79