ICCAS OpenIR
Low temperature and low toxicity synthesis of highly luminescent CdSe/CdS core-shell nanocrystals in a two-phase system
Ma, Xiaobo1,2; Nie, Wei1; Pan, Daocheng3; Ji, Xiangling1; Wang, Ce2; Zhang, Wanjin2
2011
Source PublicationCRYSTENGCOMM
ISSN1466-8033
Volume13Issue:16Pages:5243-5249
AbstractColloidal CdSe/CdS nanocrystals are synthesized at low temperatures (40-70 degrees C) via a two-phase approach at an environmentally friendly n-heptane-water interface. Oil-soluble cadmium myristate (Cd-MA) is used as cadmium source, while thiourea and selenourea are used as sulfur and selenium sources, respectively. First, the CdSe nanocrystals are achieved at an n-heptane-water interface with a diameter ranging from 1.77 to 1.83 nm at 40 degrees C. Subsequently, highly luminescent CdSe/CdS core-shell nanocrystals are synthesized using poorly reactive thiourea as sulfur source at 70 degrees C in a two-phase system. As-prepared core-shell nanocrystals have a quantum yield (PL QY) of up to 73% relative to coumarin 6 at room temperature. Meanwhile, the influence of CdSe core size and CdS shell thickness on PL QY and PL lifetime are also investigated.
DOI10.1039/c1ce05229b
Indexed BySCI
Language英语
WOS IDWOS:000293212100030
PublisherROYAL SOC CHEMISTRY
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/72364
Collection中国科学院化学研究所
Corresponding AuthorJi, Xiangling
Affiliation1.Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China
2.Jilin Univ, Alan G MacDiarmid Inst, Changchun 130012, Peoples R China
3.Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Rare Earth Resource Utilizat, Changchun 130022, Peoples R China
Recommended Citation
GB/T 7714
Ma, Xiaobo,Nie, Wei,Pan, Daocheng,et al. Low temperature and low toxicity synthesis of highly luminescent CdSe/CdS core-shell nanocrystals in a two-phase system[J]. CRYSTENGCOMM,2011,13(16):5243-5249.
APA Ma, Xiaobo,Nie, Wei,Pan, Daocheng,Ji, Xiangling,Wang, Ce,&Zhang, Wanjin.(2011).Low temperature and low toxicity synthesis of highly luminescent CdSe/CdS core-shell nanocrystals in a two-phase system.CRYSTENGCOMM,13(16),5243-5249.
MLA Ma, Xiaobo,et al."Low temperature and low toxicity synthesis of highly luminescent CdSe/CdS core-shell nanocrystals in a two-phase system".CRYSTENGCOMM 13.16(2011):5243-5249.
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