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Spectroscopic investigations on Er^(3+)/Yb^(3+)-doped oxyfluoride glass ceramics containing YOF nanocrystals 被引量：3

Spectroscopic investigations on Er^(3+)/Yb^(3+)-doped oxyfluoride glass ceramics containing YOF nanocrystals
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摘要 Spectroscopic properties of Er3＋/Yb3＋-doped transparent oxyfluoride borosilicate glass ceramics containing YOF nanocrystals were systematically investigated. X-ray diffraction （XRD） confirmed the formation of YOF nanocrystals in the glassy matrix. Based on the Judd-Ofelt theory, the intensity parameters Ωi （i=2, 4, 6）, spontaneous emission probability, radiative lifetime, radiative quantum efficiency and the effective emission bandwidth were investigated. The upconversion luminescence intensity of Er3＋ ions in the glass ceramics increased significantly with the increasing crystallization temperature. The transition mechanisms of the green and red upconversion luminescence were ascribed to a two-photon process, and the blue upconversion luminescence was a three-photon absorption process. Spectroscopic properties of Er3＋/Yb3＋-doped transparent oxyfluoride borosilicate glass ceramics containing YOF nanocrystals were systematically investigated. X-ray diffraction （XRD） confirmed the formation of YOF nanocrystals in the glassy matrix. Based on the Judd-Ofelt theory, the intensity parameters Ωi （i=2, 4, 6）, spontaneous emission probability, radiative lifetime, radiative quantum efficiency and the effective emission bandwidth were investigated. The upconversion luminescence intensity of Er3＋ ions in the glass ceramics increased significantly with the increasing crystallization temperature. The transition mechanisms of the green and red upconversion luminescence were ascribed to a two-photon process, and the blue upconversion luminescence was a three-photon absorption process.
作者 郑飞 徐时清 赵士龙 邓德刚 华有杰 王焕平
机构地区 College of Materials Science and Engineering
出处 《Journal of Rare Earths》 SCIE EI CAS CSCD 2012年第2期137-141,共5页 稀土学报（英文版）
基金 Project supported by National Science Foundation of China (51072190 and 11004177) Program for New Century Excellent Talents in University(NCET-07-0786) Zhejiang Provincial Natural Science Foundation of China (Z4100030 and Y4110621)
关键词 oxyfluoride glass ceramics Er3＋/Yb3＋ codoped spectroscopic properties rare earths oxyfluoride glass ceramics Er3＋/Yb3＋ codoped spectroscopic properties rare earths
分类号 TQ174.1 [化学工程—陶瓷工业]
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共引文献4

同被引文献17

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Journal of Rare Earths
2012年 第2期

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