Time and Temperature Dependence of CdS Nanoparticles Grown in a Polystyrene Matrix

被引：27

作者：

Antolini, F. ^{[1
]}

Burresi, E. ^{[1
]}

Stroea, L. ^{[1
,2
]}

Morandi, V. ^{[3
]}

Ortolani, L. ^{[3
]}

Accorsi, G. ^{[4
]}

Blosi, M. ^{[5
]}

机构：

[1] Italian Natl Agcy New Technol Energy & Sustainabl, UTTMATF, I-48018 Faenza, Italy

[2] Petru Poni Inst Macromol Chem, Iasi 700487, Romania

[3] CNR, IMM, I-40129 Bologna, Italy

[4] CNR, ISOF, I-40129 Bologna, Italy

[5] CNR, ISTEC, I-48018 Faenza, Italy

来源：

JOURNAL OF NANOMATERIALS | 2012年 / 2012卷

关键词：

SEMICONDUCTOR NANOCRYSTALS; II-VI; POLYMER MATRIX; SOLAR-CELLS; QUALITY; SIZE; NANOTECHNOLOGY; NANOCOMPOSITES; LUMINESCENCE; PHOTOPHYSICS;

D O I：

10.1155/2012/815696

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Luminescent CdS nanocrystals embedded in a polystyrene matrix were successfully prepared. The in situ growth of CdS QDs was realized by thermal treatment of Cd bis(thiolate)/polymer foil at different times and temperatures (240 degrees C and 300 degrees C) of annealing, in order to evaluate their influence on the quantum dots growth process. As a general trend, the increasing of time and temperature of annealing induces a rise of the CdS nanocrystals size into the polymeric matrix. The size distribution, morphology, and structure of the CdS nanoparticles were analysed with HRTEM and XRD experiments. UV-Vis and PL data are strongly size-dependent and were used to investigate the particles' growth process, too. The CdS nanoparticles behavior in solution indicated a general trend of QDs to aggregation. This predisposition was clearly displayed by DLS measurements.

引用

页数：11

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