Acta Photonica Sinica ›› 2010, Vol. 39 ›› Issue (7): 1169-1175.doi: 10.3788/gzxb20103907.1169

• Optical Materials • Previous Articles     Next Articles

Preparation and Luminescent Propeties of Er3+and Er3+/Yb3+ Codoped ZrO2-Al2O3

TAN Xin-xin, LU Shu-chen   

  1. (School of Physics |and |Electron Engineering, Harbin Normal University, Harbin 150080, China)
  • Received:2009-10-23 Revised:2010-01-10 Online:2010-07-25 Published:2010-07-25
  • About author:was born in 1984. Now she is a graduate student, and her research interests focus on condensed state physics.

Abstract:

NanocrystallineZrO2-Al2O3∶Er3+ luminescence powders are prepared by co-precipitation method. The room temperature sharp characteristics emissions of Er3+ ions are observed, in which green light at 547, 560 nm is the strongest. There exists the energy transfer between the matrix and rare earth ions Er3+. Samples with different sintering temperature are studied. The results show the samples with different sintering temperature display different crystalline phase. The up-conversion luminescence of nanocrystalline ZrO2-Al2O3∶Er3+and ZrO2-Al2O3∶Er3+/ Yb3+ are studied and the transition mechanism of the up-conversion are discussed. It is found that the red and green emissions of ZrO2-Al2O3∶Er3+ are two-photon process. In the up-conversion spectrum of ZrO2-Al2O3∶Er3+ / Yb3+ the red and green emissions are also two-photon process, but very weak blue emission is the three-photon process. Concentration quenching of the ions Er3+ is discussed. The most appropriate doping concentration is 2%(Er3+/ Zr4+).

Key words: Er3+/Yb3+, Up-conversion, ZrO2-Al2O3, Fluorescence, Rare earth

CLC Number: