Morphology and Size Dependent Optical Properties of CdS Nanostructures

doi:https://doi.org/10.1166/jnn.2006.17949

Article10.1166/jnn.2006.17949

Morphology and Size Dependent Optical Properties of CdS Nanostructures

Soumitra Kar,Sushanta Kumar Panda,Biswarup Satpati,P. V. Satyam,S. Chaudhuri-2006-03-01-Journal of Nanoscience and Nanotechnology

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TL;DRAbstract

CdS nanoparticles with different sizes ranging from 2.5 nm to 300 nm and nanorods with aspect ratio -32 were synthesized by simple solvothermal process with a view to explore the effect of size and shape on the optical properties of these nanoforms. Solvent, temperature and the Cd source played important role in determining the morphologies and sizes of the nanocrystals. Comparative study of the optical properties of these nanoforms showed systematic changes in the optical absorption spectra with the reduction in particle size. Nanorods showed bulk like properties. Photoluminescence and Raman studies were carried out to explore the size and morphology dependent optical properties of the CdS nanoforms.

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CdS nanoparticles with different sizes ranging from 2.5 nm to 300 nm and nanorods with aspect ratio -32 were synthesized by simple solvothermal process with a view to explore the effect of size and shape on the optical properties of these nanoforms. Solvent, temperature and the Cd source played important role in determining the morphologies and sizes of the nanocrystals. Comparative study of the optical properties of these nanoforms showed systematic changes in the optical absorption spectra with the reduction in particle size. Nanorods showed bulk like properties. Photoluminescence and Raman studies were carried out to explore the size and morphology dependent optical properties of the CdS nanoforms.

Keywords

Materials scienceNanorodPhotoluminescenceRaman spectroscopyMorphology (biology)Particle sizeNanostructureNanocrystal

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