• Complex
  • Title
  • Keyword
  • Abstract
  • Scholars
  • Journal
  • ISSN
  • Conference
成果搜索

author:

Cui, Xiang-Shui (Cui, Xiang-Shui.) [1] | Chen, Wen-Zhe (Chen, Wen-Zhe.) [2]

Indexed by:

EI Scopus PKU CSCD

Abstract:

Transparent bulk glass ceramics of 4.5ZnO-5.5Al2O3-90SiO2 (ZAS) and single doped ZAS:RE3+ (RE=Eu, Tb, Ce) were synthesized by sol-gel method. X-ray diffraction (XRD), transmission electron microscopy (TEM) and photoluminescence (PL) spectra were employed to study the influence of doping rare-earth ions concentration on the structure and luminescence properties of ZAS glass-ceramics. XRD results show that ZAS:RE3+ (RE=Eu, Tb, Ce) glass ceramics heat-treated at 900 consist of ZnAl2O4 phase with average grain size of 30 nm and amorphous SiO2.TEM results show that ZnAl2O4 were precipitated from ZAS system when heat-treated at 900 , and doping ions have not changed the original structure. PL spectra indicate that ZAS:Eu3+ emits intense 611 nm red light originating from 5D0→7F2 transition of Eu3+ ions, ZAS:Tb3+ shows 541 nm green emission attributed to 5D4→7F5 transition of Tb3+ ions, and ZAS:Ce3+ gives 381 nm blue light corresponding to the 5d to 4f transition of Ce3+ ions. Furthermore, the concentration quenching phenomena are observed while the single doping mole fraction of Eu3+, Tb3+ and Ce3+ was 20%, 20% and 3%, respectively. The excellent Commission International de I'Eclairage (CIE) chromaticity coordinates of ZAS:RE3+ (RE=Eu, Tb, Ce) glass-ceramics indicate that they are good candidates for the application of white LEDs. ©, 2015, Chines Academy of Sciences. All right reserved.

Keyword:

Alumina Aluminum oxide Glass ceramics High resolution transmission electron microscopy Light Luminescence of inorganic solids Metal ions Rare earths Silica Sol-gel process Sol-gels X ray diffraction Zinc compounds

Community:

  • [ 1 ] [Cui, Xiang-Shui]College of Materials Science and Engineering, Fuzhou University, Fuzhou; 350116, China
  • [ 2 ] [Chen, Wen-Zhe]College of Materials Science and Engineering, Fuzhou University, Fuzhou; 350116, China
  • [ 3 ] [Chen, Wen-Zhe]College of Materials Science and Engineering, Xiamen University of Technology, Xiamen; 361024, China

Reprint 's Address:

  • 陈文哲

    [chen, wen-zhe]college of materials science and engineering, xiamen university of technology, xiamen; 361024, china;;[chen, wen-zhe]college of materials science and engineering, fuzhou university, fuzhou; 350116, china

Show more details

Related Keywords:

Source :

Chinese Journal of Luminescence

ISSN: 1000-7032

CN: 22-1116/O4

Year: 2015

Issue: 4

Volume: 36

Page: 400-407

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count: 5

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 6

Online/Total:271/9551210
Address:FZU Library(No.2 Xuyuan Road, Fuzhou, Fujian, PRC Post Code:350116) Contact Us:0591-22865326
Copyright:FZU Library Technical Support:Beijing Aegean Software Co., Ltd. 闽ICP备05005463号-1