Synthesis, characterization and studies on optical properties of hierarchical ZnO–CdS nanocomposites

Journal Article · Sun Jul 15 04:00:00 EDT 2012 · Materials Research Bulletin

DOI:https://doi.org/10.1016/J.MATERRESBULL.2012.03.044· OSTI ID:22215149

Sharma, Manu ^[1]

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1. Department of Chemistry, Indian Institute of Technology Roorkee, Roorkee 247667 (India)

Highlights: ► Hierarchical ZnO–CdS nanocomposites have been synthesized by a simple solution based method at room temperature. ► The optical properties of the nanocomposites depend on the structures. ► The band gap of the ZnO–CdS nanocomposites is tunable. -- Abstract: Cadmium sulfide coated zinc oxide hierarchical nanocomposites have been synthesised at room temperature by a simple solution based method. CdS nanoparticles were deposited on the surface of ZnO without using any surfactant, ligand or chelating agents. The nanocomposites were synthesised using different concentrations of thioacetamide, cadmium salts, and also by varying the reaction time. After characterization of the nanocomposites, optical properties were investigated by UV–visible diffuse reflectance and photoluminescence spectroscopy techniques. It was found that band gap of the ZnO–CdS nanocomposites is tunable between 2.42 and 3.17 eV.

• OSTI ID: 22215149
• Journal Information: Materials Research Bulletin, Journal Name: Materials Research Bulletin Journal Issue: 7 Vol. 47; ISSN MRBUAC; ISSN 0025-5408
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
77 NANOSCIENCE AND NANOTECHNOLOGY
CADMIUM SULFIDES
CHELATING AGENTS
COMPOSITE MATERIALS
DEPOSITS
LIGANDS
NANOSTRUCTURES
OPTICAL PROPERTIES
PHOTOLUMINESCENCE
SEMICONDUCTOR MATERIALS
SPECTROSCOPY
SURFACES
SYNTHESIS
ZINC OXIDES