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Title: Size-dependent excited state properties of CdS nanocrystals
Authors: Ma, G. 
Tang, S.-H. 
Sun, W. 
Shen, Z. 
Huang, W.
Shi, J.
Issue Date: 15-Jul-2002
Citation: Ma, G., Tang, S.-H., Sun, W., Shen, Z., Huang, W., Shi, J. (2002-07-15). Size-dependent excited state properties of CdS nanocrystals. Physics Letters, Section A: General, Atomic and Solid State Physics 299 (5-6) : 581-585. ScholarBank@NUS Repository.
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. © 2002 Elsevier Science B.V. All rights reserved.
Source Title: Physics Letters, Section A: General, Atomic and Solid State Physics
ISSN: 03759601
DOI: 10.1016/S0375-9601(02)00680-1
Appears in Collections:Staff Publications

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