Optical and luminescent properties of CdSe/ZnS and TiO2 semiconductor quantum dots embedded into PMMA layers

Hung Ju Lin; Yu Jen Chen; Judikael Le-Rouzo; ALexandre Merlen; Waldir Avansi Junior; Sheng Hui Chen; François Flory; Cheng Chung Lee; Valmor Roberto Mastelaro

doi:10.1117/12.929268

Optical and luminescent properties of CdSe/ZnS and TiO₂ semiconductor quantum dots embedded into PMMA layers

Hung Ju Lin, Yu Jen Chen, Judikael Le-Rouzo, ALexandre Merlen, Waldir Avansi Junior, Sheng Hui Chen, François Flory, Cheng Chung Lee, Valmor Roberto Mastelaro

Department of Optics and Photonics

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

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 TiO ₂ 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.

Original language	English
Title of host publication	Nanostructured Thin Films V
DOIs	https://doi.org/10.1117/12.929268
State	Published - 2012
Event	Nanostructured Thin Films V - San Diego, CA, United States Duration: 14 Aug 2012 → 16 Aug 2012

Publication series

Name	Proceedings of SPIE - The International Society for Optical Engineering
Volume	8465
ISSN (Print)	0277-786X

Conference

Conference	Nanostructured Thin Films V
Country/Territory	United States
City	San Diego, CA
Period	14/08/12 → 16/08/12

Keywords

Absorption spectrum
CdSe/ZnS
Luminescent spectrum
Quantum dots
Thin film
TiO

Access to Document

10.1117/12.929268

Cite this

Lin, H. J., Chen, Y. J., Le-Rouzo, J., Merlen, AL., Junior, W. A., Chen, S. H., Flory, F., Lee, C. C., & Mastelaro, V. R. (2012). Optical and luminescent properties of CdSe/ZnS and TiO₂ semiconductor quantum dots embedded into PMMA layers. In Nanostructured Thin Films V Article 846510 (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 8465). https://doi.org/10.1117/12.929268

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title = "Optical and luminescent properties of CdSe/ZnS and TiO2 semiconductor quantum dots embedded into PMMA layers",

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 TiO 2 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.",

keywords = "Absorption spectrum, CdSe/ZnS, Luminescent spectrum, Quantum dots, Thin film, TiO",

author = "Lin, {Hung Ju} and Chen, {Yu Jen} and Judikael Le-Rouzo and ALexandre Merlen and Junior, {Waldir Avansi} and Chen, {Sheng Hui} and Fran{\c c}ois Flory and Lee, {Cheng Chung} and Mastelaro, {Valmor Roberto}",

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doi = "10.1117/12.929268",

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isbn = "9780819491824",

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booktitle = "Nanostructured Thin Films V",

note = "Nanostructured Thin Films V ; Conference date: 14-08-2012 Through 16-08-2012",

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Lin, HJ, Chen, YJ, Le-Rouzo, J, Merlen, AL, Junior, WA, Chen, SH, Flory, F, Lee, CC & Mastelaro, VR 2012, Optical and luminescent properties of CdSe/ZnS and TiO₂ semiconductor quantum dots embedded into PMMA layers. in Nanostructured Thin Films V., 846510, Proceedings of SPIE - The International Society for Optical Engineering, vol. 8465, Nanostructured Thin Films V, San Diego, CA, United States, 14/08/12. https://doi.org/10.1117/12.929268

Optical and luminescent properties of CdSe/ZnS and TiO₂ semiconductor quantum dots embedded into PMMA layers. / Lin, Hung Ju; Chen, Yu Jen; Le-Rouzo, Judikael et al.
Nanostructured Thin Films V. 2012. 846510 (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 8465).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

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AU - Lin, Hung Ju

AU - Chen, Yu Jen

AU - Le-Rouzo, Judikael

AU - Merlen, ALexandre

AU - Junior, Waldir Avansi

AU - Chen, Sheng Hui

AU - Flory, François

AU - Lee, Cheng Chung

AU - Mastelaro, Valmor Roberto

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AB - 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 TiO 2 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.

KW - Absorption spectrum

KW - CdSe/ZnS

KW - Luminescent spectrum

KW - Quantum dots

KW - Thin film

KW - TiO

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