Up-conversion luminescence of Er^3 +-doped glass ceramics containing 尾-NaGdF₄ nanocrystals for silicon solar cells

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• 作者：Fengxia Xin ; Shilong Zhao ; ^{shilong_zhao@hotmail.com} ; Lihui Huang ; Degang Deng ; Guohua Jia ; Huanping Wang ; Shiqing Xu ; ^{sxucjlu@hotmail.com}
• 关键词：Nanocomposites ; Optical materials and properties ; Upconversion
• 刊名：Materials Letters
• 出版年：2012
• 期刊代码：59_0167577x
• 类别：ms
• 出版时间：1 July, 2012
• 卷：78
• 期：Complete
• 页码：75-77
• 文件大小：545 K

摘要

A new Er^3 + doped oxyfluoride borosilicate glass ceramics was developed by controlling crystallization of the quenched glass. The hexagonal NaGdF₄ nanocrystals were precipitated in the glass matrix, which was confirmed by the X-ray diffraction and TEM results. Notable enhancement of upconversion emission was observed in the Er^3 + doped glass ceramics and attributed to the enrichment of Er^3 + into NaGdF₄ nanocrystals. With the increasing of Er^3 + content, the upconversion emission density ration from green to red light greatly changed in the glass ceramics. This material may be used as a potential material for the silicon solar cells.