Optical and Luminescent Properties of CdSe/ZnS and TiO2 Semiconductor Quantum Dots Embedded into PMMA Layers

被引：0

作者：

Lin, Hung-Ju ^{[1
,5
]}

Chen, Yu-Jen ^{[1
,5
]}

Le-Rouzo, Judikael ^{[1
]}

Merlen, Alexandre ^{[2
]}

Avansi Junior, Waldir ^{[4
]}

Chen, Sheng-Hui ^{[5
]}

Flory, Francois ^{[1
,3
]}

Lee, Cheng-Chung ^{[5
]}

Mastelaro, Valmor Roberto ^{[4
]}

机构：

[1] Aix Marseille Univ, Inst Mat Microelect Nanosci Provence IM2NP, CNRS UMR 6242, Serv 231, F-13397 Marseille 20, France

[2] Univ Sud Toulon Var, Inst Materiaux Microelect Nanosci Prov, IN2NP, F-83957 La Garde, France

[3] Ecole Cent Marseille, La Garde, France

[4] Inst Fis Sao Carlos USP, Sao Carlos, Brazil

[5] Natl Cent Univ, Thin Film Technol Ctr, Taipei, Taiwan

来源：

NANOSTRUCTURED THIN FILMS V | 2012年 / 8465卷

关键词：

quantum dots; thin film; CdSe/ZnS; TiO2; absorption spectrum; luminescent spectrum; NANOCRYSTALS;

D O I：

10.1117/12.929268

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

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.

引用

页数：9

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