Surface-Coated CdS Nanocrystals

• Authors: J. Fernandez , M. de Souza-Parise , P. Morais
• Languages of publication: EN

Abstracts

EN

CdS nanocrystals were prepared using a standard colloidal route (co-precipitation chemical reaction) whereas modulation of the optical and structural properties was realized via surface coating the nanocrystals with ethylene glycol molecules using an in situ procedure. The as-produced nanocrystals were characterized by X-ray diffraction, Raman spectroscopy, UV-absorption measurements and photoluminescence. The nanocrystal quality was revealed by the spectroscopic data, though the final product presents a mixture of both zinc blende (cubic) and wurtzite (hexagonal) phases. The X-ray data indicated that the concentration of the ethylene glycol used during the synthesis process modulates the nanocrystal size and the crystal phase of the end material.

Keywords

EN

78.30.Fs; 78.40.Fy; 78.55.Et; 78.67.Bf; 78.70.Ck

Discipline

• 78.70.Ck: X-ray scattering
• 78.67.Bf: Nanocrystals, nanoparticles, and nanoclusters
• 78.55.Et: II-VI semiconductors
• 78.40.Fy: Semiconductors
• 78.30.Fs: III-V and II-VI semiconductors

• Journal: Acta Physica Polonica A
• Year: 2013
• Volume: 124
• Issue: 1
• Pages: 108-111

Dates

published

2013-07

received

2013-01-02

(unknown)

2013-04-20

Contributors

author

J. Fernandez

• Universidade Estadual de Santa Cruz, Campus Soane Nazaré de Andrade, Ilhéus BA 45662-900, Brazil

author

M. de Souza-Parise

• Universidade de Brasília, Instituto de Física, Núcleo de Física Aplicada, Brasília DF 70910-900, Brazil

author

P. Morais

• Universidade de Brasília, Instituto de Física, Núcleo de Física Aplicada, Brasília DF 70910-900, Brazil
• Huazhong University of Science and Technology, School of Automation, Wuhan 430074, China

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Identifiers

DOI

10.12693/APhysPolA.124.108