Photoluminescence investigation of CdSe quantum dots and the surface state effect

Huibing Mao; Jing Chen; Jiqing Wang; Zhifeng Li; Ning Dai; Ziqiang Zhu

doi:10.1016/j.physe.2004.10.011

Photoluminescence investigation of CdSe quantum dots and the surface state effect

Huibing Mao^*
, Jing Chen
, Jiqing Wang
, Zhifeng Li
, Ning Dai
, Ziqiang Zhu

^*Corresponding author for this work

School of Physics and Electronic Science

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

40 Scopus citations

Abstract

The photoluminescence properties of CdSe quantum dots with different radii are studied in this paper. The FWHM of photoluminescence of different quantum dots are nearly the same, which reveals that the nucleation centers are formed only at the beginning of chemical reaction and the size fluctuation does not increase with the increase of the reaction time. Thermal treatment and light illumination will reduce the photoluminescence efficiency and make a blue shift remarkably, which results from the change of surface states of CdSe quantum dots.

Original language	English
Pages (from-to)	124-128
Number of pages	5
Journal	Physica E: Low-Dimensional Systems and Nanostructures
Volume	27
Issue number	1-2
DOIs	https://doi.org/10.1016/j.physe.2004.10.011
State	Published - Mar 2005

Keywords

CdSe
Quantum dots
Surface state

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10.1016/j.physe.2004.10.011

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title = "Photoluminescence investigation of CdSe quantum dots and the surface state effect",

abstract = "The photoluminescence properties of CdSe quantum dots with different radii are studied in this paper. The FWHM of photoluminescence of different quantum dots are nearly the same, which reveals that the nucleation centers are formed only at the beginning of chemical reaction and the size fluctuation does not increase with the increase of the reaction time. Thermal treatment and light illumination will reduce the photoluminescence efficiency and make a blue shift remarkably, which results from the change of surface states of CdSe quantum dots.",

keywords = "CdSe, Quantum dots, Surface state",

author = "Huibing Mao and Jing Chen and Jiqing Wang and Zhifeng Li and Ning Dai and Ziqiang Zhu",

year = "2005",

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doi = "10.1016/j.physe.2004.10.011",

language = "英语",

volume = "27",

pages = "124--128",

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

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TY - JOUR

T1 - Photoluminescence investigation of CdSe quantum dots and the surface state effect

AU - Mao, Huibing

AU - Chen, Jing

AU - Wang, Jiqing

AU - Li, Zhifeng

AU - Dai, Ning

AU - Zhu, Ziqiang

PY - 2005/3

Y1 - 2005/3

N2 - The photoluminescence properties of CdSe quantum dots with different radii are studied in this paper. The FWHM of photoluminescence of different quantum dots are nearly the same, which reveals that the nucleation centers are formed only at the beginning of chemical reaction and the size fluctuation does not increase with the increase of the reaction time. Thermal treatment and light illumination will reduce the photoluminescence efficiency and make a blue shift remarkably, which results from the change of surface states of CdSe quantum dots.

AB - The photoluminescence properties of CdSe quantum dots with different radii are studied in this paper. The FWHM of photoluminescence of different quantum dots are nearly the same, which reveals that the nucleation centers are formed only at the beginning of chemical reaction and the size fluctuation does not increase with the increase of the reaction time. Thermal treatment and light illumination will reduce the photoluminescence efficiency and make a blue shift remarkably, which results from the change of surface states of CdSe quantum dots.

KW - CdSe

KW - Quantum dots

KW - Surface state

UR - https://www.scopus.com/pages/publications/14044259271

U2 - 10.1016/j.physe.2004.10.011

DO - 10.1016/j.physe.2004.10.011

M3 - 文章

AN - SCOPUS:14044259271

SN - 1386-9477

VL - 27

SP - 124

EP - 128

JO - Physica E: Low-Dimensional Systems and Nanostructures

JF - Physica E: Low-Dimensional Systems and Nanostructures

IS - 1-2

ER -

Photoluminescence investigation of CdSe quantum dots and the surface state effect

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Keywords

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