Size-dependent excited state properties of CdS nanocrystals

Guohong Ma; Sing Hai Tang; Wanxin Sun; Zexiang Shen; Weiming Huang; Jianlin Shi

doi:10.1016/S0375-9601(02)00680-1

Size-dependent excited state properties of CdS nanocrystals

Guohong Ma
, Sing Hai Tang
, Wanxin Sun
, Zexiang Shen
, Weiming Huang
, Jianlin Shi

National University of Singapore
CAS - Shanghai Institute of Ceramics

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

46 Scopus citations

Abstract

CdS nanocrystals of different particle sizes dispersed in ZrO₂ films were fabricated by sol-gel and dipping method. The size dependent excited state optical properties were systematically investigated by photoluminescence, time-resolved photoluminescence and Raman spectroscopy. The experimental results show that the relaxation of the excited state is composed of two processes. The fast component that arises from band edge emission shows a weak dependence on particle size, while the slow component, which is attributed to the shallow defect level emission, exhibits strong dependence on particle sizes.

Original language	English
Pages (from-to)	581-585
Number of pages	5
Journal	Physics Letters, Section A: General, Atomic and Solid State Physics
Volume	299
Issue number	5-6
DOIs	https://doi.org/10.1016/S0375-9601(02)00680-1
State	Published - 15 Jul 2002
Externally published	Yes

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title = "Size-dependent excited state properties of CdS nanocrystals",

abstract = "CdS nanocrystals of different particle sizes dispersed in ZrO2 films were fabricated by sol-gel and dipping method. The size dependent excited state optical properties were systematically investigated by photoluminescence, time-resolved photoluminescence and Raman spectroscopy. The experimental results show that the relaxation of the excited state is composed of two processes. The fast component that arises from band edge emission shows a weak dependence on particle size, while the slow component, which is attributed to the shallow defect level emission, exhibits strong dependence on particle sizes.",

author = "Guohong Ma and Tang, \{Sing Hai\} and Wanxin Sun and Zexiang Shen and Weiming Huang and Jianlin Shi",

year = "2002",

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T1 - Size-dependent excited state properties of CdS nanocrystals

AU - Ma, Guohong

AU - Tang, Sing Hai

AU - Sun, Wanxin

AU - Shen, Zexiang

AU - Huang, Weiming

AU - Shi, Jianlin

PY - 2002/7/15

Y1 - 2002/7/15

N2 - CdS nanocrystals of different particle sizes dispersed in ZrO2 films were fabricated by sol-gel and dipping method. The size dependent excited state optical properties were systematically investigated by photoluminescence, time-resolved photoluminescence and Raman spectroscopy. The experimental results show that the relaxation of the excited state is composed of two processes. The fast component that arises from band edge emission shows a weak dependence on particle size, while the slow component, which is attributed to the shallow defect level emission, exhibits strong dependence on particle sizes.

AB - CdS nanocrystals of different particle sizes dispersed in ZrO2 films were fabricated by sol-gel and dipping method. The size dependent excited state optical properties were systematically investigated by photoluminescence, time-resolved photoluminescence and Raman spectroscopy. The experimental results show that the relaxation of the excited state is composed of two processes. The fast component that arises from band edge emission shows a weak dependence on particle size, while the slow component, which is attributed to the shallow defect level emission, exhibits strong dependence on particle sizes.

UR - https://www.scopus.com/pages/publications/0037100644

U2 - 10.1016/S0375-9601(02)00680-1

DO - 10.1016/S0375-9601(02)00680-1

M3 - 文章

AN - SCOPUS:0037100644

SN - 0375-9601

VL - 299

SP - 581

EP - 585

JO - Physics Letters, Section A: General, Atomic and Solid State Physics

JF - Physics Letters, Section A: General, Atomic and Solid State Physics

IS - 5-6

ER -

Size-dependent excited state properties of CdS nanocrystals

Abstract

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