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Er3+/Tm3+/Yb3+共掺杂BaGa2ZnO5粉末的上转换发光
Upconverted Luminescence of BaGa2ZnO5 Powder Co-doped with Er3+/Tm3+/Yb3+
- 发光学报 2016年37卷第12期 页码：1458-1463
- 作者机构：
北京信息科技大学 仪器科学与光电工程学院, 北京 100192
- 作者简介：
- 基金信息：北京市自然科学基金（4154071）();北京市优秀人才培养资助青年骨干个人项目（201400002012G105）资助()
DOI：10.3788/fgxb20163712.1458
中图分类号： O482.31;O614.33纸质出版日期：2016-12-10，
收稿日期：2016-7-11，
修回日期：2016-8-7，
扫 描 看 全 文
李晓英, 牛春晖, 任宣玮等. Er<sup>3+</sup>/Tm<sup>3+</sup>/Yb<sup>3+</sup>共掺杂BaGa<sub>2</sub>ZnO<sub>5</sub>粉末的上转换发光[J]. 发光学报, 2016,37(12): 1458-1463
LI Xiao-ying, NIU Chun-hui, REN Xuan-wei etc. Upconverted Luminescence of BaGa<sub>2</sub>ZnO<sub>5</sub> Powder Co-doped with Er<sup>3+</sup>/Tm<sup>3+</sup>/Yb<sup>3+</sup>[J]. Chinese Journal of Luminescence, 2016,37(12): 1458-1463
李晓英, 牛春晖, 任宣玮等. Er<sup>3+</sup>/Tm<sup>3+</sup>/Yb<sup>3+</sup>共掺杂BaGa<sub>2</sub>ZnO<sub>5</sub>粉末的上转换发光[J]. 发光学报, 2016,37(12): 1458-1463 DOI： 10.3788/fgxb20163712.1458.
LI Xiao-ying, NIU Chun-hui, REN Xuan-wei etc. Upconverted Luminescence of BaGa<sub>2</sub>ZnO<sub>5</sub> Powder Co-doped with Er<sup>3+</sup>/Tm<sup>3+</sup>/Yb<sup>3+</sup>[J]. Chinese Journal of Luminescence, 2016,37(12): 1458-1463 DOI： 10.3788/fgxb20163712.1458.
摘要
对Er
3+
/Tm
3+
/Yb
3+
共掺杂BaGa
2
ZnO
5
粉末的上转换发光特性进行了研究。首先，通过不同的制备工艺研究了BaGa
2
ZnO
5
粉末的生成条件。XRD分析表明，由于ZnO的高温分解，必须密封烧结并增加ZnO用量才能制备出BaGa
2
ZnO
5
。其次，测量了Er
3+
/Tm
3+
/Yb
3+
共掺杂BaGa
2
ZnO
5
粉末在980 nm LD激发下的上转换发射光谱，发现存在8个较强上转换发射峰，其中480 nm和798 nm对应于Tm
3+
离子能级跃迁，其他上转换峰对应于Er
3+
离子能级跃迁。另外，测量了980 nm LD不同激发功率对应的上转换发射峰强度，并根据激发功率-上转换强度曲线拟合得到了各发射峰对应的多光子吸收过程。最后，根据上转换发射光谱和CIE 1931标准数据计算了样品粉末的色坐标为（
x
=0.415 1，
y
=0.479 4），比较接近白光色坐标，说明所制备的粉末样品具有产生上转换白光的前景。
Abstract
Upconversion luminescence performance of BaGa
2
ZnO
5
powder codoped with Er
3+
/Tm
3+
/Yb
3+
was studied. Firstly
the preparation condition of BaGa
2
ZnO
5
powder was researched through different preparation technology. XRD analysis proves that BaGa
2
ZnO
5
must be prepared in sealed environment and with more ZnO due to the phrolysis of ZnO. There are eight emission peaks in the upconverted emission spectrum of BaGa
2
ZnO
5
:Er
3+
/Tm
3+
/Yb
3+
powder excited by 980 nm LD
thereinto
480 nm and 798 nm peaks correspond to energy level transition of Tm
3+
ions
and other emission peaks correspond to energy level transition of Er
3+
ions. Moreover
the upconverted emission intensities under different exciting power were measured
and the multiple-photon absorption process of each emission peaks was obtained through fitting curve of exciting power-upconversion intensity. At last
the color coordinate of the sample powder was calculated according to the upconversion emission spectrum and standard data of CIE 1931. The color coordinate is (
x
=0.415 1
y
=0.479 4) and is close to the color coordinate of white light. It proves that the prepared sample powder has the application prospect in the field of white luminescence.
关键词
BaGa2ZnO5上转换双光子吸收三光子吸收稀土共掺杂
Keywords
BaGa2ZnO5upconversiontwo-photon absorptionthree-photon absorptionco-doped with rare-earth
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