Direct-sensitized Upconversion in Yb<SUP>3+</SUP> and Tm<SUP>3+</SUP> Codoped PGETYA Glass

HUA Jing-tian

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Direct-sensitized Upconversion in Yb³⁺ and Tm³⁺ Codoped PGETYA Glass

paper | 更新时间：2020-08-12

- Direct-sensitized Upconversion in Yb³⁺ and Tm³⁺ Codoped PGETYA Glass
- Chinese Journal of Luminescence Vol. 30, Issue 6, Pages: 750-753(2009)
- 作者机构：
  
  长春职业技术学院,吉林长春,130033
- 作者简介：
- 基金信息：
- DOI：
  CLC： O482.31
- Received：25 March 2009，
  
  Revised：02 January 1900，
  
  Published Online：30 December 2009，
  
  Published：30 December 2009
- 稿件说明：
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HUA Jing-tian. Direct-sensitized Upconversion in Yb³⁺ and Tm³⁺ Codoped PGETYA Glass[J]. Chinese journal of luminescence, 2009, 30(6): 750-753.
DOI：

HUA Jing-tian. Direct-sensitized Upconversion in Yb³⁺ and Tm³⁺ Codoped PGETYA Glass[J]. Chinese journal of luminescence, 2009, 30(6): 750-753. DOI：

摘要

制备了一种稀土离子掺杂的PGETYA氟氧玻璃材料

它不仅具有较高的上转换发光效率

而且还避免了氟化物基质的缺点。其组分为58.52PbF

-34.43GeO

-3Al

-0.05Tm

-4Yb

以共掺杂Tm

和Yb

离子为上转换研究的对象。测量了该玻璃系统在980 nm LD激发下的上转换发光光谱

观察到很强的476 nm的蓝色荧光

它来源于Tm

离子的

→

跃迁。同时

还有两个较弱的红色荧光来源于Tm

离子的

→

和

→

跃迁。对上转换发光强度与泵浦电流关系曲线的拟合结果表明:此材料的蓝色上转换为三光子过程

红色上转换为双光子过程。

Abstract

Over the several passed decades

the upconversion luminescence of rare earths doped glasses has been attracted much interest due to its applications in short wavelength laser devices

three dimensional displays and optical storage sources. Therefore

exploring novel materials with high luminescent efficiency and good chemical and mechanical stability has become a challenge to the researchers. It has been of technical and applied importance to understand the mechanisms of the upconversion luminescence in the inorganic materials doped by rare earths. In this paper

a novel oxyfluoride glass sample PGETYA was prepared by a melt-quenching technique. This glass system not only has the higher up-conversion luminescence efficiency

but also avoids the drawback of both the oxide and fluoride host materials. The PGETYA sample consists of 58.52PbF

-34.43GeO

-3Al

-0.05Tm

-4Yb

(in molar)

among which GeO

is the main component

namely glass former

others are introduced as adjustors to improve the glass performance. Tm

and Yb

ions are doped as co-operative luminescent activators. The upconversion emission spectrum was measured under 980 nm excitation by using a semiconductor laser diode. Very strong blue upconversion emission at 476 nm originating from

→

transition of Tm

can be seen by naked eyes. Meanwhile two weaker red emissions originating from

→

and

→

transitions of Tm

were also observed. Upconversion luminescence intensity variations with the increase of excitation density viz the increase of LD working currents were investigated. The nonlinear curve fittings of the relationship between the up-conversion emission intensity and LD working current to the theoretical result were carried out

and it was concluded that the blue up-conversion for this material is nicely fitting in with the three-photon process and red one fulfills the two-photon process. These results suggested that the studied oxyfluoride glass with the designed composition may be a good candidate material for the practical applications in short wavelength laser and three dimensional displays.

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references

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Related Institution

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Direct-sensitized Upconversion in Yb3+ and Tm3+ Codoped PGETYA Glass

DOI：

摘要

Abstract

关键词

Keywords

references

Direct-sensitized Upconversion in Yb³⁺ and Tm³⁺ Codoped PGETYA Glass