Study on Ultraviolet Upconversion Emissions of Gd3+ Induced by Tm3+ under 980 nm Excitation

	Study on Ultraviolet Upconversion Emissions of Gd3+ Induced by Tm3+ under 980 nm Excitation
其他题名	论文其他题名
	Cao C. Y.; Yu X. G.; Qin W. P.; Zhang J. S.
	2010
发表期刊	Spectroscopy and Spectral Analysis
ISSN	1000-0593
卷号	30 期号:3 页码:616-620
摘要	Series of Tm3+/Yb3+ co-doped GdF3 powders were synthesized through an easy and mild hydrothermal method. The phase and purity of powders were characterized by powder X-ray diffraction (XRD) (Rigaku RU-200b). The morphologies of the,samples were characterized by field emission scanning electron microscopy (FE-SEM) (Hitachi S-4800). The ultraviolet (UV) up-conversion (UC)emission spectra were recorded by a fluorescence spectrophotometer (Hitachi F-4500) with a 980 nm semiconductor continuous wave laser diode as the excitation source. And the luminescent dynamics was measured by excitation with 980 nm using an optical parameter oscillator (OPO) laser pumped by a Pulsed Nd : YAG laser with a pulse duration of 10 ns. repetition frequency of 10 Hz, and the signal was recorded by using a monochromator and an oscillograph. Under 980 nm excitation, Gd3+, acting as a kind of host ion in the studied system, and its UV UC emissions were observed and studied. The luminescent dynamics of the characteristic emission of Gd3+ (311. 6 nm, P-6(7/2)-> S-8(7/2)) was explored and studied. The luminescent dynamics analysis results indicated that, on UV UC emissions of Gd3+, Yb3+ ions served as primary sensitizer ions successively transferring energy to Tm3+ to populate the P-3(2) level. Then, Tm3+ ions served as secondary sensitizer ions transferring energy to populate the multiple I-6(J) states of Gd3+ P-3(2)-> H-3(6) (Tm3+) -> S-8(7/2)-> I-6(J) (Gd3+). Further, D-6(J) levels were populated through other energy transfer processes between Gd3+ and Yb3+ or Tm3+. Finally, UV UC emissions from the excited D-6(9/2), I-6(J), P-6(5/2), and P-6(7/2) states to the ground state S-8(7/2) were observed. Meanwhile, Tm' - acted as activator in its own UC emissions, and the article did not put emphasis on those except the P-3(2) and I-1(6) levels to the ground state H-3(6) transitions. Especially, the dependences of UV UC emissions of Gd3+ on the Yb3+ concentrations, the Tm3+ concentrations, the annealing temperatures, and the excitation power densities of the 980 nm semiconductor continuous wave laser diode were studied, too.
收录类别	SCI
语种	中文
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/25610
专题	中科院长春光机所知识产出
推荐引用方式 GB/T 7714	Cao C. Y.,Yu X. G.,Qin W. P.,et al. Study on Ultraviolet Upconversion Emissions of Gd3+ Induced by Tm3+ under 980 nm Excitation[J]. Spectroscopy and Spectral Analysis,2010,30(3):616-620.
APA	Cao C. Y.,Yu X. G.,Qin W. P.,&Zhang J. S..(2010).Study on Ultraviolet Upconversion Emissions of Gd3+ Induced by Tm3+ under 980 nm Excitation.Spectroscopy and Spectral Analysis,30(3),616-620.
MLA	Cao C. Y.,et al."Study on Ultraviolet Upconversion Emissions of Gd3+ Induced by Tm3+ under 980 nm Excitation".Spectroscopy and Spectral Analysis 30.3(2010):616-620.

条目包含的文件
文件名称/大小	文献类型	版本类型	开放类型	使用许可
980nm激发下Tm_3_诱导的Gd_3（464KB）			开放获取	--	浏览请求全文