Silica gel glasses with a high efficiency of luminescence sensitization in the Ce3+-Tb3+ system

被引：17

作者：

Malashkevich, GE ^{[1
]}

Semkova, GI ^{[1
]}

Stupak, AP ^{[1
]}

Sukhodolov, AV ^{[1
]}

机构：

[1] Belarussian Acad Sci, Inst Atom & Mol Phys, Minsk 220072, BELARUS

来源：

PHYSICS OF THE SOLID STATE | 2004年 / 46卷 / 08期

关键词：

D O I：

10.1134/1.1788773

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Terbium- and (Ce, Tb)-containing glasses prepared using the direct sol-gel-glass transition are studied. It is shown that glasses doped with one activator contain two main types of optical centers, namely, isolated and complex centers, which are characterized by weak and strong cross-relaxation quenching of luminescence from the D-5(3) state of Tb3+ ions, respectively. The Ce4+-Tb3+ (Tb4+) complex centers are formed during sintering of coactivated xerogels in oxygen and can be transformed into Ce3+-Tb3+ centers through saturation of the samples with hydrogen. The Ce3+-Tb3+ centers exhibit efficient luminescence from the D-5(4) state upon excitation into the absorption bands of Ce3+ ions. (C) 2004 MAIK "Nauka / Interperiodica".

引用

页码：1425 / 1431

页数：7

共 24 条

[11] Infrared-to-visible Eu3+ energy upconversion due to cooperative energy transfer from an Yb3+ ion pair in a sol-gel processed multi-component silica glass [J].

Maciel, GS ;

Biswas, A ;

Prasad, PN .

OPTICS COMMUNICATIONS, 2000, 178 (1-3) :65-69

[12] OPTICAL-CENTERS OF CERIUM IN SILICA GLASSES OBTAINED BY THE SOL-GEL PROCESS [J].

MALASHKEVICH, GE ;

PODDENEZHNY, EN ;

MELNICHENKO, IM ;

BOIKO, AA .

JOURNAL OF NON-CRYSTALLINE SOLIDS, 1995, 188 (1-2) :107-117

[13] New optical centers of triply charged cerium ions in silica gel-glasses saturated with hydrogen [J].

Malashkevich, GE ;

Melnichenko, IM ;

Poddenezhny, EN ;

Boiko, AA .

JOURNAL OF NON-CRYSTALLINE SOLIDS, 1999, 260 (1-2) :141-146

[14] Nanocrystalline nature of high-symmetry Ce4+-Eu3+ centers in silica gel glasses [J].

Malashkevich, GE ;

Sigaev, VN ;

Semkova, GI ;

Champagnon, B .

PHYSICS OF THE SOLID STATE, 2004, 46 (03) :552-556

[15] Influence of preparation redox conditions and composition of Ce-containing silica gel-glass on its absorption spectrum in the visible region [J].

Malashkevich, GE ;

Semkova, GI ;

Strek, W .

JOURNAL OF ALLOYS AND COMPOUNDS, 2002, 341 (1-2) :244-246

[16] Spectral luminescence properties of nanostructured Ce-Nd-containing silica gel-glasses [J].

Malashkevich, GE ;

Semkova, GI ;

Gaishun, VE ;

Mudryi, AV .

JETP LETTERS, 2001, 74 (07) :388-391

[17] Luminescence spectral properties of Sm- and (Ce,Sm)-containing silica gel glasses [J].

Malashkevich, GE ;

Mel'nichenko, IM ;

Poddenezhnyi, EN ;

Semchenko, AV .

PHYSICS OF THE SOLID STATE, 1998, 40 (03) :420-426

[18] Luminescence-spectral properties and structure of optical centers in Eu- and Ce-Eu-containing quartz gel-glasses [J].

Malashkevich, GE ;

Makhanek, AG ;

Semchenko, AV ;

Gaishun, VE ;

Mel'nichenko, IM ;

Poddenezhnyi, EN .

PHYSICS OF THE SOLID STATE, 1999, 41 (02) :202-207

[19]

MALASHKEVICH GE, 1995, OPT SPEKTROSK+, V78, P84

[20] Cooperative energy transfer in Yb3+-Tb3+ codoped silica sol-gel glasses [J].

Martín, IR ;

Yanes, AC ;

Méndez-Ramos, J ;

Torres, ME ;

Rodríguez, VD .

JOURNAL OF APPLIED PHYSICS, 2001, 89 (05) :2520-2524

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