In Situ Aggregation of ZnSe Nanoparticles into Supraparticles: Shape Control and Doping Effects

doi:10.1021/la304458q

CORC > 化学研究所 > 中国科学院化学研究所

	In Situ Aggregation of ZnSe Nanoparticles into Supraparticles: Shape Control and Doping Effects
	Yang, Gaoling 1; Zhong, Haizheng 1; Liu, Ruibin 1; Li, Yongfang 2; Zou, Bingsuo 1
刊名	LANGMUIR
	2013-02-12
卷号	29 期号:6 页码:1970-1976
ISSN号	0743-7463
DOI	10.1021/la304458q
英文摘要	The ability to tune the size, shape, and properties of supraparticles is of great importance for fundamental study as well as their promising applications. We previously developed a method to synthesize mono-disperse ZnSe supraparticles via "in situ aggregation" of ZnSe nanoparticles through a simple hot-injection method. In the present work, we show that the "in situ aggregation" strategy can be extended to tune the shapes of ZnSe supraparticles, and introduce novel functional magnetic and luminescence properties. Shape control is manipulated with oleic acid as ligands, which balances the attractive interparticles van der Waals forces and steric repulsive forces from the ligands. With the increase of oleic acid concentration, a morphology change from microspheres to asymmetrical multimer and three-dimensional nanoflowers was observed. "Doping" preformed Fe3O4 nanoparticles into ZnSe supraparticles endow them with magnetic properties. The magnetism of these Fe3O4@ZnSe supraparticles depends on the dosage of dopant. Doping of preformed CdS nanocrystals was also studied, resulting in emissive hybrid CdS@ZnSe supraparticles with diameters of 50-100 nm. It is noted that the doping of Fe3O4 and CdS nanoparticles show differing morphologies. The differences can be explained by variance in the lattice mismatches which leads to differing potentials for crystal growth.
语种	英语
出版者	AMER CHEMICAL SOC
WOS记录号	WOS:000315018200031
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/54631]
专题	中国科学院化学研究所
通讯作者	Zhong, Haizheng
作者单位	1.Beijing Inst Technol, Sch Mat Sci & Engn, Beijing Key Lab Nanophoton & Ultrafine Optoelect, Beijing 100081, Peoples R China 2.Chinese Acad Sci, Inst Chem, CAS Key Lab Organ Solids, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Yang, Gaoling,Zhong, Haizheng,Liu, Ruibin,et al. In Situ Aggregation of ZnSe Nanoparticles into Supraparticles: Shape Control and Doping Effects[J]. LANGMUIR,2013,29(6):1970-1976.
APA	Yang, Gaoling,Zhong, Haizheng,Liu, Ruibin,Li, Yongfang,&Zou, Bingsuo.(2013).In Situ Aggregation of ZnSe Nanoparticles into Supraparticles: Shape Control and Doping Effects.LANGMUIR,29(6),1970-1976.
MLA	Yang, Gaoling,et al."In Situ Aggregation of ZnSe Nanoparticles into Supraparticles: Shape Control and Doping Effects".LANGMUIR 29.6(2013):1970-1976.