Synthesis and characterization of high-quality ZnS, ZnS : Mn2+, and ZnS : Mn2+/ZnS (core/shell) luminescent nanocrystals

	Synthesis and characterization of high-quality ZnS, ZnS : Mn2+, and ZnS : Mn2+/ZnS (core/shell) luminescent nanocrystals
	Quan ZW ; Wang ZL ; Yang PP ; Lin J ; Fang JY
刊名	inorganic chemistry
	2007
卷号	46 期号:4 页码:1354-1360
关键词	QUANTUM DOTS SEMICONDUCTOR NANOCRYSTALS SELF-ORGANIZATION FACILE SYNTHESIS CDSE NANOCRYSTALLITES NANOSIZED PARTICLES NANOPARTICLES SURFACE MN PHOTOLUMINESCENCE
ISSN号	0020-1669
通讯作者	lin j
中文摘要	high-quality zns, zns:mn2+, and zns:mn2+/zns (core/shell) nanocrystals (ncs) were synthesized via a high-boiling solvent process and characterized by x-ray diffraction (xrd), transmission electron microscopy (tem), electron paramagnetic resonance (epr), x-ray photoelectron spectroscopy (xps), and photoluminescence (pl) spectra. the monodisperse zns ncs (size = 8 nm), which self-assembled into several micrometer-sized domains, were achieved by adopting poly(ethylene glycol) (peg) in the reaction process (without using a size-selection process). the obtained zns:mn2+ and zns:mn2+/zns core/shell ncs are highly crystalline and quasimonodisperse with an average particle size of 6.1 and 8.4 nm, respectively. all of the as-formed ncs can be well dispersed in hexane to form stable and clear colloidal solutions, which show strong visible emission (blue for zns and red-orange for zns:mn2+ and zns:mn2+/zns) under uv excitation. the growth of a zns shell on zns:mn2+ ncs, that is, the formation of zns:mn2+/zns core/shell ncs, resulted in a 30% enhancement in the pl intensity with respect to that of bare zns:mn2+ ncs due to the elimination of the surface defects.
收录类别	SCI
语种	英语
WOS记录号	WOS:000244119300041
公开日期	2010-07-13
内容类型	期刊论文
源URL	[http://ir.ciac.jl.cn/handle/322003/13185]
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	Quan ZW,Wang ZL,Yang PP,et al. Synthesis and characterization of high-quality ZnS, ZnS : Mn2+, and ZnS : Mn2+/ZnS (core/shell) luminescent nanocrystals[J]. inorganic chemistry,2007,46(4):1354-1360.
APA	Quan ZW,Wang ZL,Yang PP,Lin J,&Fang JY.(2007).Synthesis and characterization of high-quality ZnS, ZnS : Mn2+, and ZnS : Mn2+/ZnS (core/shell) luminescent nanocrystals.inorganic chemistry,46(4),1354-1360.
MLA	Quan ZW,et al."Synthesis and characterization of high-quality ZnS, ZnS : Mn2+, and ZnS : Mn2+/ZnS (core/shell) luminescent nanocrystals".inorganic chemistry 46.4(2007):1354-1360.