ZnO/CdS nanocomposites: Synthesis, structure and morphology--颗粒学报PARTICUOLOGY

Murugadoss, G. (2012). ZnO/CdS nanocomposites: Synthesis, structure and morphology. Particuology, 10(6), 722–728. https://doi.org/10.1016/j.partic.2012.03.009

ZnO/CdS nanocomposites: Synthesis, structure and morphology

G. Murugadoss^*

Department of Physics, Annamalai University, Annamalai Nagar 608 002, Tamilnadu, India

10.1016/j.partic.2012.03.009

Volume 10, Issue 6, December 2012, Pages 722-728

Received 9 November 2011, Revised 25 February 2012, Accepted 6 March 2012, Available online 13 June 2012.

E-mail: murugadoss_g@yahoo.com

Highlights

► ZnO/CdS nanocomposites were synthesized by a chemical method using a water–ethanol matrix.

► Characterization results showed that CdS nanoparticles with a mean size of 4 nm were grown on ZnO nanowires.

► Luminescence measurements of ZnO/CdS nanocomposites showed narrow and enhanced blue emission.

Abstract

Uncoated ZnO, CdS and ZnO/CdS nanocomposites were successfully synthesized chemically in atmospheric air using a water–ethanol matrix. The as-obtained samples were characterized by X-ray diffraction, transmission electron microscopy (TEM), UV–vis and photoluminescence (PL) spectrophotometry. The luminescence measurements of ZnO/CdS nanocomposites showed narrow and enhanced PL emission in the blue region. PL quenching was observed in ZnO/CdS nanocomposites by increasing Cd and S concentrations.

Graphical abstract

Keywords

Nanocomposites; Surface defect; Quantum confinement; TEM; Photoluminescence

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