Crystal-Site Engineering Control for the Reduction of Eu3+ to Eu2+ in CaYAIO(4): Structure Refinement and Tunable Emission Properties

	Crystal-Site Engineering Control for the Reduction of Eu3+ to Eu2+ in CaYAIO(4): Structure Refinement and Tunable Emission Properties
	Zhan,Yang; Li,Xuejiao; Li,Kai; Lian,Hongzhou; Shang,Mengmeng; Lin,Jun
刊名	acs applied materials & interfaces
	2015
卷号	7 期号:4 页码:2715-2725
关键词	LIGHT-EMITTING-DIODES LUMINESCENCE PROPERTIES WHITE-LIGHT ENERGY-TRANSFER NEAR-UV PHOTOLUMINESCENCE PROPERTIES ENHANCED PHOTOLUMINESCENCE HYDROTHERMAL SYNTHESIS OXYFLUORIDE PHOSPHOR CATION SUBSTITUTION
通讯作者	shang,mm
英文摘要	in this article, eu-activated cayalo4 aluminate phosphors were synthesized by a solid-state reaction. under uv light excitation, characteristic red line emission of eu3+ was detected in the range of 570-650 nm. in addition, we introduced crystal-site engineering approach into the cayalo4 host through incorporation of si4+-ca2+ to replace al3+-y3+, which would shrink the alo6 octahedrons, accompanied by the expansion of cao9 polyhedron, and then enable the partial reduction of eu3+ to eu2+. the crystal structure and underlying mechanism have been clarified on the basis of the rietveld refinement analysis. the pl spectra of ca0.99+xy1-xal1-xsixo4:eu-0.01 (x = 0-0.30) exhibit both green emission of eu2+ (4f(6)5d(1)-4f(7), broadband around 503 nm) and red-orange emission of eu3+ (d-5(0)-f-7(1,2,) 593 and 624 nm) under uv light excitation with a quantum yield of 38.5%. the cie coordinates of ca0.99+xy1-xal1-xsixo4:eu-0.01 (x = 0-0.30) phosphors are regularly shifted from (0.482, 0.341) to (0.223, 0.457) with increasing x, which would expand the application of eu. furthermore, this investigation reveals the correlations of structure and property of luminescent materials, which would shed light on the development of novel phosphors suitable for lighting and display applications.
收录类别	SCI
语种	英语
公开日期	2016-05-09
内容类型	期刊论文
源URL	[http://ir.ciac.jl.cn/handle/322003/64740]
专题	长春应用化学研究所_长春应用化学研究所知识产出_期刊论文
推荐引用方式 GB/T 7714	Zhan,Yang,Li,Xuejiao,Li,Kai,et al. Crystal-Site Engineering Control for the Reduction of Eu3+ to Eu2+ in CaYAIO(4): Structure Refinement and Tunable Emission Properties[J]. acs applied materials & interfaces,2015,7(4):2715-2725.
APA	Zhan,Yang,Li,Xuejiao,Li,Kai,Lian,Hongzhou,Shang,Mengmeng,&Lin,Jun.(2015).Crystal-Site Engineering Control for the Reduction of Eu3+ to Eu2+ in CaYAIO(4): Structure Refinement and Tunable Emission Properties.acs applied materials & interfaces,7(4),2715-2725.
MLA	Zhan,Yang,et al."Crystal-Site Engineering Control for the Reduction of Eu3+ to Eu2+ in CaYAIO(4): Structure Refinement and Tunable Emission Properties".acs applied materials & interfaces 7.4(2015):2715-2725.