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1.山东大学 晶体材料国家重点实验室, 山东 济南 250100
2.济南大学 化学与化学工程学院, 山东 济南 250022
3.山东大学 信息科学与工程学院, 山东 济南 250100
[ "李国鑫(1999-),男,山东淄博人,硕士研究生,2022年于济南大学获得学士学位,主要从事倍半氧化物晶体缺陷的研究。E-mail: 202232812@mail.sdu.edu.cn" ]
[ "尹延如(1988-),女,山东济南人,博士,长聘副研究员,博士生导师,2017年于山东大学晶体材料研究所获得博士学位,主要从事晶体生长及激光性能方面的研究。E-mail: yyr@sdu.edu.cn" ]
收稿:2025-02-02,
修回:2025-02-22,
纸质出版:2025-06-25
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李国鑫,王佩,穆文祥等.Lu2O3的位错与湿法刻蚀[J].发光学报,2025,46(06):1095-1108.
LI Guoxin,WANG Pei,MU Wenxiang,et al.Dislocation and Wet Etching of Lu2O3[J].Chinese Journal of Luminescence,2025,46(06):1095-1108.
李国鑫,王佩,穆文祥等.Lu2O3的位错与湿法刻蚀[J].发光学报,2025,46(06):1095-1108. DOI: 10.37188/CJL.20250024. CSTR: 32170.14.CJL.20250024.
LI Guoxin,WANG Pei,MU Wenxiang,et al.Dislocation and Wet Etching of Lu2O3[J].Chinese Journal of Luminescence,2025,46(06):1095-1108. DOI: 10.37188/CJL.20250024. CSTR: 32170.14.CJL.20250024.
氧化镥(Lu
2
O
3
)被认为是一种具有潜力的激光晶体材料,因其高热导率、低声子能量和强晶体场而备受瞩目。然而,其高达2 450 ℃的熔点易产生显著的温度梯度,进而诱导产生大量的缺陷。关于这种晶体的缺陷研究尚不充分,阻碍了晶体质量的提升。在本研究中,我们采用化学刻蚀方法,探究了不同条件下对Lu
2
O
3
晶体的刻蚀效果,并确定了研究Lu
2
O
3
晶体位错缺陷的最佳条件(质量分数70% H
3
PO
4
,160 ℃,15~18 min)。利用显微镜、扫描电子显微镜和原子力显微镜对(111)和(110)取向的Lu₂O₃晶片上的位错蚀坑形貌进行了表征。本研究填补了Lu
2
O
3
线缺陷认知方面的空白,并为优化晶体生长过程和提高晶体质量提供了指导。
Lutetium oxide (Lu
2
O
3
) is recognized as a potential laser crystal material, and it is noted for its high thermal conductivity, low phonon energy, and strong crystal field. Nevertheless, its high melting point of 2 450 ℃ induces significant temperature gradients, resulting in a proliferation of defects. The scarcity of comprehensive research on this crystal’s defects hinders the enhancement of crystal quality. In this study, we employ
ed the chemical etching method to examine the etching effects on Lu
2
O
3
crystals under various conditions and to identify the optimal conditions for investigating the dislocation defects of Lu
2
O
3
crystals (mass fraction 70% H
3
PO
4
, 160 ℃, 15-18 min). The morphologies of dislocation etch pits on the (111)- and (110)-oriented Lu
2
O
3
wafers were characterized using microscopy, scanning electron microscopy and atomic force microscopy. This research addresses the gap in understanding Lu
2
O
3
line defects and offers guidance for optimizing the crystal growth process and improving crystal quality.
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