Chinese Journal of Applied Chemistry ›› 2016, Vol. 33 ›› Issue (10): 1140-1146.DOI: 10.11944/j.issn.1000-0518.2016.10.160244

• Full Papers • Previous Articles     Next Articles

Preparation and Upconversion Luminescence Properties of La2.4Mo1.6O8:Yb3+,Er3+

ZHANG Ningzi,ZHOU Yaowei,YU Zhen,XIA Zhiguo()   

  1. School of Materials Science and Engineering,University of Science and Technology Beijing,Beijing 100083,China
  • Received:2016-06-13 Accepted:2016-07-12 Published:2016-10-08 Online:2016-10-08
  • Contact: XIA Zhiguo
  • Supported by:
    Supported by the National Natural Science Foundations of China(No.51572023), Science and Technology Innovation Training Project of College Student(No.15210400)

Abstract:

La2.4Mo1.6O8:Yb3+,Er3+ phosphor was prepared by the hightemperature solid state reaction. The phase structures and luminescence properties of La2.4Mo1.6O8:Yb3+,Er3+ phosphors were examined by X-ray diffraction(XRD) and upconversion emission spectra, respectively. The XRD results show that the final sample is La2.4Mo1.6O8 phase with a face centered cubic CaF2 structure. Upon excitation of 980 nm pulsed laser, La2.4Mo1.6O8:Yb3+,Er3+ phosphor emitted the green emission lines and the red emission lines, which are originated from the 2H11/24I15/2, 4S3/24I15/2 and 4F9/24I15/2 transitions of Er3+, respectively. The possible upconversion luminescence mechanism in the sample is further discussed.

Key words: upconversion, molybdenum oxide, luminescence mechanism