Pressure-induced photoluminescence of MgO

被引：7

作者：

Li, Xin ^{[1
,2
]}

Yuan, Ye ^{[2
]}

Zhang, Jinbo ^{[2
,3
]}

Kim, Taehyun ^{[4
]}

Zhang, Dongzhou ^{[5
]}

Yang, Ke ^{[6
]}

Lee, Yongjae ^{[2
,4
]}

Wang, Lin ^{[2
]}

机构：

[1] Fudan Univ, Dept Phys, Shanghai 200433, Peoples R China

[2] Ctr High Pressure Sci & Technol Adv Res, Shanghai 201203, Peoples R China

[3] Yangzhou Univ, Coll Phys Sci & Technol, Yangzhou 225002, Jiangsu, Peoples R China

[4] Yonsei Univ, Dept Earth Syst Sci, Seoul, South Korea

[5] Univ Hawaii Manoa, Hawaii Inst Geophys & Planetol, Sch Ocean & Earth Sci & Technol, Honolulu, HI 96822 USA

[6] Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai 201203, Peoples R China

来源：

JOURNAL OF PHYSICS-CONDENSED MATTER | 2018年 / 30卷 / 19期

关键词：

MgO; high pressure; photoluminescence; EQUATION-OF-STATE; MAGNESIUM-OXIDE; LUMINESCENCE; STRENGTH;

D O I：

10.1088/1361-648X/aabb40

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

It is reported in this paper that pressure can promote strong photoluminescence (PL) in MgO. The PL measurements of MgO indicate that it has no obvious luminescence at pressures lower than 13 GPa. PL starts to appear upon further compression and reaches a maximum intensity at about 35 GPa. The center of the emission band shows a red shift at lower pressures and turns to a blue shift as pressure exceeds 25 GPa. The PL is preserved upon complete decompression. The defects and micro-strain due to the plastic deformation of MgO are likely responsible for the origin of the luminescence.

引用

页数：5

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