Luminescence properties of BCNO phosphor prepared by a green and simple method

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• 作者：Xinghua Zhang ; ^{xinghua146@yahoo.com.cn} ; Zunming Lu ; Jing Lin ; Lanlan Li ; Ying Fan ; Long Hu ; Xuewen Xu ; Fanbin Meng ; Jianling Zhao ; Chengchun Tang ; ^{tangcc@hebut.edu.cn}
• 关键词：Phosphors ; Luminescence ; BCNO ; Lifetime
• 刊名：Materials Letters
• 出版年：2013
• 出版时间：1 March, 2013
• 年：2013
• 卷：94
• 期：Complete
• 页码：72-75
• 全文大小：591 K

文摘

BCNO phosphors with tuneable emission spectra were prepared at 625 ¡ãC under atmosphere using boric acid, melamine and glucose as raw materials. The XRD, SEM and FTIR results show that the prepared compound is composed of cubic B₂O₃ and partially crystalline BCNO. The emission peak position can be tuned from 510 nm to 560 nm by changing the glucose contents and the mol ratios of boric acid and melamine. The decay process of BCNO phosphors can be fitted well by double exponential function, and the lifetimes ¦Ó₁ and ¦Ó₂ were correlated with carbon impurity concentration and other defects in BCNO phosphor, respectively.