Up-Conversion Tuneability in Sol-Gel Derived SiO2-KYF4 Nano-Glass-Ceramics Doped with Yb3+-Ho3+-Tm3+

被引：1
|
作者：
Santana-Alonso, A. [1 ]
Yanes, A. C. [1 ]
Mendez-Ramos, J. [2 ]
del-Castillo, J. [1 ]
机构：
[1] Univ La Laguna, Dept Fis Basica, E-38206 Tenerife, Spain
[2] Univ La Laguna, Dept Fis Fundamental, E-38206 Tenerife, Spain
来源：
SCIENCE OF ADVANCED MATERIALS | 2013年 / 5卷 / 06期
关键词：
Rare-Earth-Doped-Materials; Glass-Ceramics; Sol-Gel Technique; Up-Conversion Luminescence; COLOR TUNEABILITY; PHOTON AVALANCHE; ENERGY-TRANSFER; THIN-FILMS; NANOCRYSTALS; LUMINESCENCE; CRYSTALS; KYF4; ER3+; PHOTOLUMINESCENCE;
D O I：
10.1166/sam.2013.1493
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Sol-gel derived transparent nano-glass-ceramics doped with Ho3+ and co-doped with Yb3+-Ho3+ or Yb3+-Ho3+-Tm3+, containing cubic KYF4 nanocrystals, have been successfully synthesized and characterized by XRD measurements. Strong red, green and blue, along with relatively weaker UV up-conversion emissions were obtained under infrared excitation. Up-conversion mechanisms have been discussed in terms of energy transfer and cross relaxation processes. An efficient white light source was obtained in the triply-doped samples by means of an adequate concentration of rare earth doping ions, processing temperature and adjusting the pump power.
引用
收藏
页码：592 / 597
页数：6
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