Er3+/Yb3+掺杂NaGd(WO4)2粉体的制备与发光性能*

doi:10.11896/j.issn.1005-023X.2017.08.001

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Abstract The Er³⁺/Yb³⁺ co-doped NaGd(WO₄)₂ powder were synthesized by the hydrothermal method. The effects of different complexing agents and hydrothermal temperature on morphology and structure of the samples were studied. The visible and near infrared emission spectra of the co-doped NaGd(WO₄)₂ powders with various Er³⁺ ion concentrations were measured. The spectroscopic results show intense green emission bands, weak red emission and near infrared emission bands for the co-doped samples located at 530 nm, 552 nm, 656 nm and 1 532 nm under 980 nm LD excitation, which correspond to the ²H_11/2/⁴S_3/2→⁴I_15/2,⁴F_9/2→⁴I_15/2 and ⁴I_13/2→⁴I_15/2 level transition of Er³⁺, respectively. With the increase of Er³⁺ concentration, the intensities of the upconversion and near infrared emission show a trend of increasing first and then decreasing. The most intense excitation and emission peaks are centered at 378 nm and 552 nm. According to the relationship between exciting power and luminous intensity, the red light and green light all belong to two-photon absorption processes, but the red light also contains a certain single photon absorption component.

Key words： erbium(Ⅲ) ion ytterbium(Ⅲ) ion NaGd(WO₄)₂ hydrothermal method luminescence

Published: 02 May 2018

CLC number:

O482

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	Articles by authors
	YU Xiaochen
	ZHANG Dandan
	LI Zhe
	WANG Gaokai
	GAO Menglei
	DUAN Li
	JIANG Ziqiang
	WANG Xingang
	ZHAO Peng

Cite this article:

YU Xiaochen,ZHANG Dandan,LI Zhe, et al. Preparation and Luminescence Property of Er³⁺ and Yb³⁺ Co-doped NaGd(WO₄)₂ Nanocrystal[J]. Materials Reports, 2017, 31(8): 1-5.

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http://www.mater-rep.com/EN/10.11896/j.issn.1005-023X.2017.08.001 OR http://www.mater-rep.com/EN/Y2017/V31/I8/1

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