Co-doping effect of CaS and Nd2S3 nanocrystallites on luminescence properties of sol-gel SiO2 xerogel

被引：1

作者：

Yang, P ^{[1
]}

Lü, MK ^{[1
]}

Song, CF ^{[1
]}

Xu, D ^{[1
]}

Yuan, DL ^{[1
]}

Gu, F ^{[1
]}

机构：

[1] Shandong Univ, State Key Lab Crystal Mat, Jinan 250100, Peoples R China

来源：

MATERIALS CHEMISTRY AND PHYSICS | 2005年 / 91卷 / 2-3期

基金：

中国国家自然科学基金;

关键词：

sol-gel; SiO2; xerogel; luminescence; nanocrystallites;

D O I：

10.1016/j.matchemphys.2003.11.023

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The synthesis and photoluminescence characteristics of a porous phosphor silica xerogel containing CaS and Nd2S3 nanoparticles entrapped in a sol-gel silica network are discussed. X-ray diffraction (XRD), transmission electron micrograph (TEM), UV-Vis absorption spectroscopy and photoluminescence spectroscopy have been performed. The observed luminescence is assigned to CaS and Nd2S3 nanoparticles embedded in the sol-gel silica xerogel. Transmission electron micrographs of doped samples revealed the presence of CaS and Nd2S3 nanoparticles with average diameters of 10-20 nm. Two emission bands have been observed from co-doped sample. (c) 2003 Elsevier B.V. All rights reserved.

引用

页码：253 / 256

页数：4

共 26 条

[1] ORGANIC-CHEMISTRY WITHIN CERAMIC MATRICES - DOPED SOL-GEL MATERIALS [J].

AVNIR, D .

ACCOUNTS OF CHEMICAL RESEARCH, 1995, 28 (08) :328-334

[2] Optical properties of Europium doped gels during densification [J].

Biswas, A ;

Friend, CS ;

Maciel, GS ;

Prasad, PN .

JOURNAL OF NON-CRYSTALLINE SOLIDS, 2000, 261 (1-3) :9-14

[3] Quantum dot bioconjugates for ultrasensitive nonisotopic detection [J].

Chan, WCW ;

Nie, SM .

SCIENCE, 1998, 281 (5385) :2016-2018

[4] Alkanethiolate-protected PbS nanoclusters: Synthesis, spectroscopic and electrochemical studies [J].

Chen, SW ;

Truax, LA ;

Sommers, JM .

CHEMISTRY OF MATERIALS, 2000, 12 (12) :3864-3870

[5] Ultraviolet photoluminescence of porous silica [J].

Chiodini, N ;

Meinardi, F ;

Morazzoni, F ;

Paleari, A ;

Scotti, R ;

Di Martino, D .

APPLIED PHYSICS LETTERS, 2000, 76 (22) :3209-3211

[6] BLUE EMISSION IN TETRAETHOXYSILANE AND SILICA-GELS [J].

GARCIA, J ;

MONDRAGON, MA ;

TELLEZ, C ;

CAMPERO, A ;

CASTANO, VM .

MATERIALS CHEMISTRY AND PHYSICS, 1995, 41 (01) :15-17

[7] Photoluminescence and upconversion optical properties of the CaS:Sm3+ nanocrystallites [J].

Gong, X ;

Chen, WJ ;

Wu, PF ;

Chan, WK .

APPLIED PHYSICS LETTERS, 1998, 73 (20) :2875-2877

[8] THERMO-LUMINESCENCE EMISSION-SPECTRA OF SINGLE-CRYSTAL CAS [J].

GREEN, AGJ ;

VINEY, IVF ;

BRIGHTWELL, JW ;

RAY, B .

MATERIALS LETTERS, 1988, 7 (1-2) :19-21

[9] White phosphors from a silicate-carboxylate sol-gel precursor that lack metal activator ions [J].

Green, WH ;

Le, KP ;

Grey, J ;

Au, TT ;

Sailor, MJ .

SCIENCE, 1997, 276 (5320) :1826-1828

[10]

KANE NF, 1994, J NONCRYST SOLIDS, V180, P25

← 1 2 3 →