Er:Lu2O3单晶的导模法生长及性能表征

人工晶体学报 ›› 2021, Vol. 50 ›› Issue (4): 747-751.

Er:Lu₂O₃单晶的导模法生长及性能表征

王贵吉, 尹延如, 贾志泰, 陶绪堂

山东大学,晶体材料国家重点实验室,济南 250100

收稿日期:2020-11-17 出版日期:2021-04-15 发布日期:2021-05-21
通讯作者: 尹延如,博士。E-mail:yyr@sdu.edu.cn
作者简介:王贵吉(1995—),男,山东省人,博士研究生。E-mail:guiji.wang@qq.com
基金资助:
国家重点研发计划(2016YFB1102201)

Growth and Property Characterization of Er:Lu₂O₃ Single Crystals by EFG Method

WANG Guiji, YIN Yanru, JIA Zhitai, TAO Xutang

State Key Laboratory of Crystal Materials, Shandong University, Jinan 250100, China

Received:2020-11-17 Online:2021-04-15 Published:2021-05-21

摘要/Abstract

摘要： 本文以高纯Lu₂O₃、Er₂O₃为原料,使用自主设计、制造的自动等径导模炉,采用导模法(EFG)生长了φ25 mm×20 mm的7.82%(原子数分数)Er:Lu₂O₃单晶,分凝系数为0.92,并探索了退火条件。X射线衍射仪(XRD)结果为纯相,X射线荧光光谱仪(XRF)结果证明杂质含量较低。利用吸收光谱计算在972 nm及1 535 nm附近的吸收截面,分别为3.24×10^-21 cm²、8.43×10^-21 cm²,半峰全宽(FWHM)分别为28.22 nm、27.31 nm。热学性能测试结果表明,在30 ℃时热导率为13.28 W·m^-1·K^-1。利用扫描电子显微镜(SEM)对晶体表面微观形貌进行了表征。

关键词: Er:Lu₂O₃, 导模法, 热学性能, 吸收光谱

Abstract: The high-purity Lu₂O₃ and Er₂O₃ were used as raw materials, using independently design and manufacture automatic equal diameter EFG furnace, 7.82% (atomic fraction) Er:Lu₂O₃ single crystal of φ25 mm×20 mm was grown by the EFG method, and the segregation coefficient is 0.92. Annealing conditions were explored. XRD result is a pure phase, and the XRF result proves that the impurity content is low. The absorption cross-sections around 972 nm and 1 535 nm are calculated using absorption spectra to be 3.24×10^-21 cm²and 8.43×10^-21 cm², and FWHM are 28.22 nm and 27.31 nm, respectively. The thermal property test results show that the thermal conductivity is 13.28 W·m^-1·K^-1 at 30 ℃. The crystal surface micromorphology was characterized by SEM.

Key words: Er:Lu₂O₃, EFG method, thermal property, absorption spectrum

中图分类号:

O734

王贵吉, 尹延如, 贾志泰, 陶绪堂. Er:Lu₂O₃单晶的导模法生长及性能表征[J]. 人工晶体学报, 2021, 50(4): 747-751.

WANG Guiji, YIN Yanru, JIA Zhitai, TAO Xutang. Growth and Property Characterization of Er:Lu₂O₃ Single Crystals by EFG Method[J]. JOURNAL OF SYNTHETIC CRYSTALS, 2021, 50(4): 747-751.

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Er:Lu₂O₃单晶的导模法生长及性能表征

Growth and Property Characterization of Er:Lu₂O₃ Single Crystals by EFG Method

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