Structure and Luminescent Properties of Double-Doped LiNbO3:Zn:Mg Crystals

被引：1
|
作者：
Tokko, Olga Vladimirovna [1 ]
Kadetova, Alexandra Vladimirovna [1 ]
Prusskii, Andrey Ivanovich [1 ]
Smirnov, Maxim Vladimirovich [2 ]
Palatnikov, Mikhail Nikolaevich [2 ]
Sidorov, Nikolay Vasilievich [2 ]
机构：
[1] Petrozavodsk State Univ, Inst Phys & Technol, pr Lenina 33, Petrozavodsk 185000, Karelia, Russia
[2] Russian Acad Sci, Tananaev Inst Chem, Kola Sci Ctr, Subdiv Fed Res Ctr, Acad Town,26a,Apatity, Murmansk 184209, Russia
来源：
PHYSICA STATUS SOLIDI A-APPLICATIONS AND MATERIALS SCIENCE | 2024年 / 221卷 / 06期
基金：
俄罗斯科学基金会;
关键词：
double doping; lithium niobate; luminescence centers; photoluminescence; polarons; XRD; LITHIUM-NIOBATE CRYSTALS; CONGRUENT LINBO3; DEFECT STRUCTURE; MG; ABSORPTION; HYDROGEN; CENTERS; TIME;
D O I：
10.1002/pssa.202300796
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The correlation between photoluminescence in the near-IR region and point defect centers in the LiNbO3 crystals co-doped with Zn and Mg both by homogeneous and direct methods has been studied. X-ray diffraction (XRD) analysis shows that the LiNbO3:Zn:Mg (4.68:0.9 mol%) crystal obtained by homogeneous doping has the least number of intrinsic defects compared to the others. It has been established that ZnLi defects stimulate photoluminescence (PL) in the near-IR region of the luminescence spectrum in the LiNbO3:Zn:Mg crystals obtained by homogeneous doping. The LiNbO3:Zn:Mg (4.68:0.90 mol%) crystal has the maximum PL intensity and the LiNbO3:Zn:Mg (3.83:0.97 mol%) crystal has the minimum. Both crystals are doped homogeneously. Such defects as niobium vacancies (V-Nb) and niobium in the empty octahedron (Nb-oct) are suggested as luminescence quenchers in the co-doped crystals.
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页数：11
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