Characterization of CdSe and CdSe/CdS core/shell nanoclusters synthesized in aqueous solution

Shu Man Liu; Hai Qing Guo; Zhi Hua Zhang; Rui Li; Wei Chen; Zhan Guo Wang

doi:10.1016/S1386-9477(99)00260-X

Characterization of CdSe and CdSe/CdS core/shell nanoclusters synthesized in aqueous solution

Shu Man Liu, Hai Qing Guo, Zhi Hua Zhang, Rui Li, Wei Chen, Zhan Guo Wang

Research output: Contribution to journal › Conference article › peer-review

85 Citations (Scopus)

Abstract

CdSe nanoclusters overcoated with CdS shell were prepared with macapoacetic acid as stabilizer. The optical properties of CdSe nanoclusters and the influence of CdS shell on the electronic structures of CdSe cores were studied by optical absorption, photoluminescence (PL) and photoluminescence excitation (PLE) spectroscopies. Based on PL and PLE results and the theoretical calculation on fine structure of bandedge exciton, a model of formation of excimer within the small clusters was proposed to explain the large Stokes shift of luminescence from absorption edge observed in PL results.

Original language	English
Pages (from-to)	174-178
Number of pages	5
Journal	Physica E: Low-Dimensional Systems and Nanostructures
Volume	8
Issue number	2
DOIs	https://doi.org/10.1016/S1386-9477(99)00260-X
Publication status	Published - Aug 2000
Externally published	Yes
Event	IUMRS-ICAM'99: Symposium on Low Dimensional Structures and Quantum Devices: Symposium O of the 5th IUMRS International Conference on Advanced Materials - Beijing, China Duration: 13 Jun 1999 → 18 Jun 1999

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10.1016/S1386-9477(99)00260-X

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title = "Characterization of CdSe and CdSe/CdS core/shell nanoclusters synthesized in aqueous solution",

abstract = "CdSe nanoclusters overcoated with CdS shell were prepared with macapoacetic acid as stabilizer. The optical properties of CdSe nanoclusters and the influence of CdS shell on the electronic structures of CdSe cores were studied by optical absorption, photoluminescence (PL) and photoluminescence excitation (PLE) spectroscopies. Based on PL and PLE results and the theoretical calculation on fine structure of bandedge exciton, a model of formation of excimer within the small clusters was proposed to explain the large Stokes shift of luminescence from absorption edge observed in PL results.",

author = "Liu, {Shu Man} and Guo, {Hai Qing} and Zhang, {Zhi Hua} and Rui Li and Wei Chen and Wang, {Zhan Guo}",

year = "2000",

month = aug,

doi = "10.1016/S1386-9477(99)00260-X",

language = "English",

volume = "8",

pages = "174--178",

journal = "Physica E: Low-Dimensional Systems and Nanostructures",

issn = "1386-9477",

number = "2",

note = "IUMRS-ICAM'99: Symposium on Low Dimensional Structures and Quantum Devices: Symposium O of the 5th IUMRS International Conference on Advanced Materials ; Conference date: 13-06-1999 Through 18-06-1999",

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TY - JOUR

T1 - Characterization of CdSe and CdSe/CdS core/shell nanoclusters synthesized in aqueous solution

AU - Liu, Shu Man

AU - Guo, Hai Qing

AU - Zhang, Zhi Hua

AU - Li, Rui

AU - Chen, Wei

AU - Wang, Zhan Guo

PY - 2000/8

Y1 - 2000/8

N2 - CdSe nanoclusters overcoated with CdS shell were prepared with macapoacetic acid as stabilizer. The optical properties of CdSe nanoclusters and the influence of CdS shell on the electronic structures of CdSe cores were studied by optical absorption, photoluminescence (PL) and photoluminescence excitation (PLE) spectroscopies. Based on PL and PLE results and the theoretical calculation on fine structure of bandedge exciton, a model of formation of excimer within the small clusters was proposed to explain the large Stokes shift of luminescence from absorption edge observed in PL results.

AB - CdSe nanoclusters overcoated with CdS shell were prepared with macapoacetic acid as stabilizer. The optical properties of CdSe nanoclusters and the influence of CdS shell on the electronic structures of CdSe cores were studied by optical absorption, photoluminescence (PL) and photoluminescence excitation (PLE) spectroscopies. Based on PL and PLE results and the theoretical calculation on fine structure of bandedge exciton, a model of formation of excimer within the small clusters was proposed to explain the large Stokes shift of luminescence from absorption edge observed in PL results.

UR - http://www.scopus.com/inward/record.url?scp=0034250346&partnerID=8YFLogxK

U2 - 10.1016/S1386-9477(99)00260-X

DO - 10.1016/S1386-9477(99)00260-X

M3 - Conference article

AN - SCOPUS:0034250346

SN - 1386-9477

VL - 8

SP - 174

EP - 178

JO - Physica E: Low-Dimensional Systems and Nanostructures

JF - Physica E: Low-Dimensional Systems and Nanostructures

IS - 2

T2 - IUMRS-ICAM'99: Symposium on Low Dimensional Structures and Quantum Devices: Symposium O of the 5th IUMRS International Conference on Advanced Materials

Y2 - 13 June 1999 through 18 June 1999

ER -

Characterization of CdSe and CdSe/CdS core/shell nanoclusters synthesized in aqueous solution

Abstract

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