Synthesis, Crystal Structure, and Luminescence Properties of Y4Si2O7N2: Eu2+ Oxynitride Phosphors

Guozhang Chen, Liang Jun Yin, Jun Tao Dong, Yan Yu Feng, Yang Gao, Weidong He, Yu Jia, Xin Xu, Hubertus T. Hintzen

Research output: Contribution to journalArticleScientificpeer-review

19 Citations (Scopus)


Y4Si2O7N2: Eu2+ phosphor has been prepared by a pretreatment method. Reduction in Eu3+ ions into Eu2+ by the use of hydrogen iodide (HI) is verified by X-ray absorption near-edge structure (XANES) and electrode potential analysis. Y4Si2O7N2: Eu2+ phosphor has a broad emission band in the range of 400-500 nm. Furthermore, the effect of Zr doping on the structure and luminescence properties of Y4Si2O7N2: Eu2+ phosphor is researched. It found that the Zr doping leads to an emission blueshift, and improves the luminescence intensity and thermal quenching behavior of Y4Si2O7N2: Eu2+ phosphors. Prospectively, the pretreatment approach could be extended to develop other Eu2+-doped compounds.

Original languageEnglish
Pages (from-to)183-190
Number of pages8
JournalJournal of the American Ceramic Society
Issue number1
Publication statusPublished - 1 Jan 2016


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