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.

引用

页数：11

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