Journal of Inorganic Materials ›› 2010, Vol. 25 ›› Issue (5): 551-556.DOI: 10.3724/SP.J.1077.2010.09878

• Research Letter • Previous Articles     Next Articles

Characteristics and Mechanism of Up-conversion Luminescence in Er3+/Yb3+/Tb3+ Co-doped Oxyfluorogermanate Glasses

HU Yue-Bo1,2,3, QIU Jian-Bei2, ZHOU Da-Li1, YANG Zhen-Wen2, SONG Zhi-Guo2   

  1. 1. Material Science and Engineering College of Sichuan University, Chengdu 610065, China; 2. Material Science and Engineering College, Kunming University of Science and Technology, Kunming 650093, China; 3. Material Research center, Kunming Metallurgy College, Kunming 650043, China
  • Received:2009-12-18 Revised:2010-02-05 Published:2010-05-20 Online:2010-05-12

Abstract:

Up-conversion luminescence properties and energytransfer processes in Er3+,Yb3+ and Tb3+ single doped or co-doped oxyfluorogermanate glasses were studied under 980nm laser excitation. Green and red up-conversion emissions around 524, 546 and 658nm which can be assigned to the Tb3+5D47FJ (J=5 and 0) and Er3+∶(2H11/2, 4S3/2 and 4F9/2)→4I15/2 transitions, respectively, were strongly observed at room temperature. Up-conversion luminescence intensity depended on the YbF3, TbF3 concentration and excitationpower density. The energy transfer processes among Er3+, Yb3+ and Tb3+, and up-conversion mechanisms were discussed.

Key words: up-conversion luminescence, mechanism, oxyfluorogermanate glasses; Er3+/Yb3+/Tb3+ co-doped, energy transfer

CLC Number: