Thermal characteristic analysis of heat sink in absolute cryogenic radiometer

	Thermal characteristic analysis of heat sink in absolute cryogenic radiometer
	Tang, X.; W. Fang; Y. Luo; K. Wang and Z. Xia
	2016
发表期刊	Guangxue Xuebao/Acta Optica Sinica
卷号	36 期号:10
摘要	Mn2+/Fe3+co-doped upconverting nanocrystals were prepared by hydrothermal method. The crystal phase, size and fluorescence intensity were modulated via changing the doping concentrations. The maximum intensity of upconversion luminescence (UCL) was observed in current work at the reaction time of 4 h when coating the silica shell of different thickness onto the NaYF4:Yb,Er,Fe nanocrystals through facilely altering the reaction time. The integrated overall intensity of upconversion luminescence was 3.7 and 4.5 times enhanced by co-doping Mn2+and Fe3+, respectively. In particular, the red emission of NaYF4:Yb,Er,Fe nanocrystals was 7 times intensified selectively compared to the green band of Er3+. The intensified visible UCL especially the dominant red emission is mainly ascribed to the energy transfer from \|2F7/2,4T1g (Yb3+-Mn2+/Fe3+dimer) to4F9/2(Er3+) states as well as the distortion of the crystalline field symmetry. The quenching of UCL as increasing dopants is stemming from the exchange interaction between 3d5metal ions. 2016, Science Press. All right reserved.
文章类型	期刊
收录类别	EI
语种	中文
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/57199
专题	中科院长春光机所知识产出
推荐引用方式 GB/T 7714	Tang, X.,W. Fang,Y. Luo,et al. Thermal characteristic analysis of heat sink in absolute cryogenic radiometer[J]. Guangxue Xuebao/Acta Optica Sinica,2016,36(10).
APA	Tang, X.,W. Fang,Y. Luo,&K. Wang and Z. Xia.(2016).Thermal characteristic analysis of heat sink in absolute cryogenic radiometer.Guangxue Xuebao/Acta Optica Sinica,36(10).
MLA	Tang, X.,et al."Thermal characteristic analysis of heat sink in absolute cryogenic radiometer".Guangxue Xuebao/Acta Optica Sinica 36.10(2016).

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