Formation and spectroscopic characterization of mono-dispersed CdSe nanocrystals

Yan Ming Miao; Chao Rong Li; Li Cao; Rui Bin Liu; Yu Ping He; Si Shen Xie; Bing Suo Zou

doi:10.1088/1009-1963/14/11/021

Formation and spectroscopic characterization of mono-dispersed CdSe nanocrystals

Yan Ming Miao, Chao Rong Li, Li Cao, Rui Bin Liu, Yu Ping He, Si Shen Xie, Bing Suo Zou^*

^*Corresponding author for this work

CAS - Institute of Physics

Research output: Contribution to journal › Article › peer-review

1 Citation (Scopus)

Abstract

In this article, mono-dispersed hexagonal structure CdSe nanocrystals with polyhedron shape were prepared by an open solvent thermal reaction. They show a discrete excitonic transition structure in the absorption spectra and the minimal photoluminescence (PL) peak full-width at half-maximum of 19 nm. The PL quantum yield is about 60%. Transmission electron micrographs, high-resolution transmission electron micrographs, x-ray powder diffraction patterns, UV-vis absorption spectra and PL spectra were obtained for the as-prepared CdSe nanocrystals. The size of the CdSe nanocrystals can be tuned by changing the reaction temperature or time. Due to the improved synthesis method, a different growth mechanism of the CdSe nanocrystals is discussed.

Original language	English
Pages (from-to)	2262-2268
Number of pages	7
Journal	Chinese Physics
Volume	14
Issue number	11
DOIs	https://doi.org/10.1088/1009-1963/14/11/021
Publication status	Published - 1 Nov 2005
Externally published	Yes

Keywords

Formation
Mono-dispersed
Nanocrystals

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10.1088/1009-1963/14/11/021

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title = "Formation and spectroscopic characterization of mono-dispersed CdSe nanocrystals",

abstract = "In this article, mono-dispersed hexagonal structure CdSe nanocrystals with polyhedron shape were prepared by an open solvent thermal reaction. They show a discrete excitonic transition structure in the absorption spectra and the minimal photoluminescence (PL) peak full-width at half-maximum of 19 nm. The PL quantum yield is about 60%. Transmission electron micrographs, high-resolution transmission electron micrographs, x-ray powder diffraction patterns, UV-vis absorption spectra and PL spectra were obtained for the as-prepared CdSe nanocrystals. The size of the CdSe nanocrystals can be tuned by changing the reaction temperature or time. Due to the improved synthesis method, a different growth mechanism of the CdSe nanocrystals is discussed.",

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author = "Miao, {Yan Ming} and Li, {Chao Rong} and Li Cao and Liu, {Rui Bin} and He, {Yu Ping} and Xie, {Si Shen} and Zou, {Bing Suo}",

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doi = "10.1088/1009-1963/14/11/021",

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T1 - Formation and spectroscopic characterization of mono-dispersed CdSe nanocrystals

AU - Miao, Yan Ming

AU - Li, Chao Rong

AU - Cao, Li

AU - Liu, Rui Bin

AU - He, Yu Ping

AU - Xie, Si Shen

AU - Zou, Bing Suo

PY - 2005/11/1

Y1 - 2005/11/1

N2 - In this article, mono-dispersed hexagonal structure CdSe nanocrystals with polyhedron shape were prepared by an open solvent thermal reaction. They show a discrete excitonic transition structure in the absorption spectra and the minimal photoluminescence (PL) peak full-width at half-maximum of 19 nm. The PL quantum yield is about 60%. Transmission electron micrographs, high-resolution transmission electron micrographs, x-ray powder diffraction patterns, UV-vis absorption spectra and PL spectra were obtained for the as-prepared CdSe nanocrystals. The size of the CdSe nanocrystals can be tuned by changing the reaction temperature or time. Due to the improved synthesis method, a different growth mechanism of the CdSe nanocrystals is discussed.

AB - In this article, mono-dispersed hexagonal structure CdSe nanocrystals with polyhedron shape were prepared by an open solvent thermal reaction. They show a discrete excitonic transition structure in the absorption spectra and the minimal photoluminescence (PL) peak full-width at half-maximum of 19 nm. The PL quantum yield is about 60%. Transmission electron micrographs, high-resolution transmission electron micrographs, x-ray powder diffraction patterns, UV-vis absorption spectra and PL spectra were obtained for the as-prepared CdSe nanocrystals. The size of the CdSe nanocrystals can be tuned by changing the reaction temperature or time. Due to the improved synthesis method, a different growth mechanism of the CdSe nanocrystals is discussed.

KW - Formation

KW - Mono-dispersed

KW - Nanocrystals

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DO - 10.1088/1009-1963/14/11/021

M3 - Article

AN - SCOPUS:27744455699

SN - 1009-1963

VL - 14

SP - 2262

EP - 2268

JO - Chinese Physics

JF - Chinese Physics

IS - 11

ER -

Formation and spectroscopic characterization of mono-dispersed CdSe nanocrystals

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Keywords

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