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Proceedings Paper

Optical and luminescent properties of CdSe/ZnS and TiO2 semiconductor quantum dots embedded into PMMA layers
Author(s): Hung-Ju Lin; Yu-Jen Chen; Judikael Le-Rouzo; Alexandre Merlen; Waldir Avansi; Sheng-Hui Chen; François Flory; Cheng-Chung Lee; Valmor Roberto Mastelaro
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Paper Abstract

Optical quality PMMA thin film layers including different concentrations of 3nm CdSe/ZnS and 5 nm TiO2 semiconductor quantum dots have been made by spin coating method. Their optical properties show evident consequences of the confinement effects with wavelength bandgap shifting for both types of QDs. The confinement effects are more pronounced for CdSe/ZnS QDs than for TiO2 QDs. Layers including CdSe/ZnS QDs exhibit a strong luminescent behavior centred on 560nm with a stock-shift in front of the first exciton absorption peak.

Paper Details

Date Published: 17 October 2012
PDF: 9 pages
Proc. SPIE 8465, Nanostructured Thin Films V, 846510 (17 October 2012); doi: 10.1117/12.929268
Show Author Affiliations
Hung-Ju Lin, IM2NP, CNRS, Aix-Marseille Univ. (France)
National Central Univ. (Taiwan)
Yu-Jen Chen, IM2NP, CNRS, Aix-Marseille Univ. (France)
National Central Univ. (Taiwan)
Judikael Le-Rouzo, IM2NP, CNRS, Aix-Marseille Univ. (France)
Alexandre Merlen, IM2NP, CNRS, Univ. du Sud Toulon-Var (France)
Waldir Avansi, Univ. de São Paulo (Brazil)
Sheng-Hui Chen, National Central Univ. (Taiwan)
François Flory, IM2NP, CNRS, Aix-Marseille Univ. (France)
Ecole Centrale Marseille (France)
Cheng-Chung Lee, National Central Univ. (Taiwan)
Valmor Roberto Mastelaro, Univ. de São Paulo (Brazil)


Published in SPIE Proceedings Vol. 8465:
Nanostructured Thin Films V
Tom G. Mackay; Yi-Jun Jen; Raúl J. Martín-Palma, Editor(s)

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