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

页码：592 / 597

页数：6

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