Pechini sol-gel synthesis of La2CaB8O16:Eu3+ red phosphor and its photoluminescence spectral properties

Powder material fabricated by solid-state reaction process has the characteristics of large particulate size, wide size-distribution and being subject to agglomeration. To circumvent these issues, Pechini sol-gel method has firstly been utilized to synthesize the red phosphor La2CaB8O16:Eu3+. Phase...

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Bibliographic Details
Published inJournal of luminescence Vol. 206; pp. 15 - 20
Main Authors Guo, Rui, Huang, Jinhua, Chen, Xin, Luo, Qi, Luo, Lan, Xiong, Yuhua, Zhang, Shaohua
Format Journal Article
LanguageEnglish
Published Elsevier B.V 01.02.2019
Subjects
La2CaB8O16
Pechini sol-gel method
Photoluminescence properties
Red phosphor
Red phosphor
La2CaB8O16
Pechini sol-gel method
Photoluminescence properties
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ISSN0022-2313
1872-7883
DOI10.1016/j.jlumin.2018.10.025

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Summary:Powder material fabricated by solid-state reaction process has the characteristics of large particulate size, wide size-distribution and being subject to agglomeration. To circumvent these issues, Pechini sol-gel method has firstly been utilized to synthesize the red phosphor La2CaB8O16:Eu3+. Phase identification, morphology observation and photoluminescence spectra measurement have been carried out on La2CaB8O16:Eu3+ samples. The results show that a narrow size-distribution, good dispersibility phosphor with high emission intensity can be obtained by exploiting Pechini sol-gel process. The suitable process parameters are the calcination temperature T = 900 °C, the molar ratio of citric acid to metal ion N = 1.0, and pH = 7–8 with addition of a small amount of polyethylene glycol.
ISSN:0022-2313
1872-7883
DOI:10.1016/j.jlumin.2018.10.025