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

doi:10.11944/j.issn.1000-0518.2016.10.160244

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

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Preparation and Upconversion Luminescence Properties of La_2.4Mo_1.6O₈:Yb³⁺,Er³⁺

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

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

Abstract:

La_2.4Mo_1.6O₈:Yb³⁺,Er³⁺ phosphor was prepared by the hightemperature solid state reaction. The phase structures and luminescence properties of La_2.4Mo_1.6O₈:Yb³⁺,Er³⁺ phosphors were examined by X-ray diffraction(XRD) and upconversion emission spectra, respectively. The XRD results show that the final sample is La_2.4Mo_1.6O₈ phase with a face centered cubic CaF₂ structure. Upon excitation of 980 nm pulsed laser, La_2.4Mo_1.6O₈:Yb³⁺,Er³⁺ phosphor emitted the green emission lines and the red emission lines, which are originated from the ²H_11/2→⁴I_15/2, ⁴S_3/2→⁴I_15/2 and ⁴F_9/2→⁴I_15/2 transitions of Er³⁺, respectively. The possible upconversion luminescence mechanism in the sample is further discussed.

Key words: upconversion, molybdenum oxide, luminescence mechanism

ZHANG Ningzi, ZHOU Yaowei, YU Zhen, XIA Zhiguo. Preparation and Upconversion Luminescence Properties of La_2.4Mo_1.6O₈:Yb³⁺,Er³⁺[J]. Chinese Journal of Applied Chemistry, 2016, 33(10): 1140-1146.

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Preparation and Upconversion Luminescence Properties of La_2.4Mo_1.6O₈:Yb³⁺,Er³⁺

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