Low energy ion irradiation effects in MgO: Optical property study

被引：0
|
作者：
Balaji, S. [1 ]
Sen, Sujoy [1 ]
Amirthapandian, S. [1 ,2 ]
Singh, Ch Kishan [1 ]
David, C. [1 ,2 ]
机构：
[1] Indira Gandhi Ctr Atom Res, Mat Sci Grp, Kalpakkam 603102, Tamil Nadu, India
[2] A CI Homi Bhabha Natl Inst, Indira Gandhi Ctr Atom Res, Kalpakkam 603102, Tamil Nadu, India
来源：
PHYSICA B-CONDENSED MATTER | 2025年 / 699卷
关键词：
Luminescence; Ion irradiation; Magnesium oxide; Color centers; LUMINESCENCE; MECHANISM; DEFECTS;
D O I：
10.1016/j.physb.2024.416761
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
Irradiation of MgO pellets with ion beams results in the formation of vacancies and their aggregates. The irradiated MgO pellets are characterized by optical absorption and photoluminescence studies. 100 keV helium ion irradiation of MgO pellets results in the formation of F or F+ defects, F 2 2+ defects, and F2 type defects. When irradiated with 100 keV oxygen ion beam, surface oxygen vacancies and F 2 2+ defects are formed in the MgO lattice. Various PL emission peaks occur in the irradiated sample and in particular, emissions at 3.1 eV and 2.79 eV are found to be related to oxygen vacancies created by ion irradiation in the MgO target. The surface morphology of the irradiated samples is investigated with scanning electron microscopy.
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页数：8
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