Facile synthesis and observation of discontinuous red-shift photoluminescence of CdTe/CdS core/shell nanocrystals

doi:10.1039/c1ce05757j

CORC > 化学研究所 > 中国科学院化学研究所

	Facile synthesis and observation of discontinuous red-shift photoluminescence of CdTe/CdS core/shell nanocrystals
	Xu, Weiwei 1,2; Shen, Huaibin 2; Niu, Jin Zhong 2; Zhou, Changhua 2; Yu, Cailan 3; Li, Xiaomin 2; Hang, Yuan 1; Wang, Hongzhe 2; Ma, Lan 1; Li, Lin Song 2
刊名	CRYSTENGCOMM
	2012
卷号	14 期号:1 页码:272-277
ISSN号	1466-8033
DOI	10.1039/c1ce05757j
英文摘要	A simple method was introduced to synthesize CdTe/CdS core/shell nanocrystals (NCs) by using a new kind of "green" tellurium precursor. Both absorption and photoluminescence (PL) spectra of CdTe/CdS NCs exhibited a discontinuous shift as follows: slight (<10 nm), large (similar to 30 nm), and slight (<10 nm) red-shift during the growth of CdS shell. Different sized CdTe cores were introduced to synthesize CdTe/CdS core/shell NCs and similar discontinuous red-shift phenomena in the PL spectra were observed. These characteristics indicated that the structure of CdTe/CdS NCs gradually evolved from type-I to type-II, in agreement with transmission electron microscopy (TEM), the tuning of PL quantum yields (QYs), and PL lifetime results.
语种	英语
出版者	ROYAL SOC CHEMISTRY
WOS记录号	WOS:000300617000041
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/47437]
专题	中国科学院化学研究所
通讯作者	Ma, Lan
作者单位	1.Tsinghua Univ, Grad Sch Shenzhen, Div Life Sci, Shenzhen 518055, Peoples R China 2.Henan Univ, Minist Educ, Key Lab Special Funct Mat, Kaifeng 475004, Peoples R China 3.Chinese Acad Sci, Inst Chem, Key Lab Petrochem, Beijing 100080, Peoples R China
推荐引用方式 GB/T 7714	Xu, Weiwei,Shen, Huaibin,Niu, Jin Zhong,et al. Facile synthesis and observation of discontinuous red-shift photoluminescence of CdTe/CdS core/shell nanocrystals[J]. CRYSTENGCOMM,2012,14(1):272-277.
APA	Xu, Weiwei.,Shen, Huaibin.,Niu, Jin Zhong.,Zhou, Changhua.,Yu, Cailan.,...&Li, Lin Song.(2012).Facile synthesis and observation of discontinuous red-shift photoluminescence of CdTe/CdS core/shell nanocrystals.CRYSTENGCOMM,14(1),272-277.
MLA	Xu, Weiwei,et al."Facile synthesis and observation of discontinuous red-shift photoluminescence of CdTe/CdS core/shell nanocrystals".CRYSTENGCOMM 14.1(2012):272-277.