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Optical Engineering

Optical engineering by the nanocomposites of ZnO-CdS/TiO2
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Paper Abstract

In this article we present the bandgap engineering and spectral properties of ZnO-CdS and ZnO-TiO2 nanocomposites prepared by colloidal chemical synthesis. The optical bandgap (Eg) of the material is tunable between 2.62 and 4.12 eV. Emission peaks of ZnO-CdS change from 385 to 520 nm and those of ZnO-TiO2 change from 340 to 385 nm almost in proportion to the changes in Eg. It is possible to obtain a desired luminescence color from UV to green by simply adjusting the composition. ZnO-CdS and ZnO-TiO2 are potential nanocomposite materials for the tunable light emission.

Paper Details

Date Published: 1 June 2011
PDF: 5 pages
Opt. Eng. 50(6) 069001 doi: 10.1117/1.3589297
Published in: Optical Engineering Volume 50, Issue 6
Show Author Affiliations
Litty Irimpan, Cochin Univ. of Science & Technology (India)
Vadakedathu P. N. Nampoori, Cochin Univ. of Science & Technology (India)
Padmanabhan Radhakrishnan, Cochin Univ. of Science & Technology (India)

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