The upconversion luminescence of Er3+doped and Er3+, Yb3+co-doped Y2SiO5

被引：0

作者：

Optoelectronic Technology Institute, Dalian Maritime University, Dalian 116026, China ^{[1
]}

机构：

来源：

Gongneng Cailiao/Journal of Functional Materials | 2008年 / 39卷 / 06期

关键词：

Light - Excited states - Silicon compounds - Yttrium compounds - Energy transfer - Two photon processes - Ytterbium compounds - Luminescence;

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摘要：

In this paper, a new upconversion luminescence material X2type Y2SiO5:Yb, Er was reported. The upconversion luminescent properties as a function of Yb3+concentration and pumping power were were studied: (1) As Yb3+concentration increased, both the green and red light increased first, and then decreased. However, compared with the green light emission, the red depended on Yb3+concentration more strongly, and pure red light emission was obtained when Yb3+concentration was 12mol%. (2) The relationship between the upconversion intensity and pumping power indicated that the upconversion emission based on two-photon absorption. Moreover the mechanisms of upconversion luminescence were studied. It was considerered that as Yb3+concentration increased, the effects of the excited state absorption of Er3+, energy transfer from Yb3+to Er3+and cross-relaxation of Er3+on the upconversion luminescence gradually enhanced in turn.

引用

页码：883 / 884

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