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Investigations on structural and optical properties of co-doped (Ag, Co) ZnO nanoparticles

Reddy, Sankara B and Reddy, Venkatramana S and Reddy, Venkateswara P and Reddy, Koteeswara N (2012) Investigations on structural and optical properties of co-doped (Ag, Co) ZnO nanoparticles. In: OPTOELECTRONICS AND ADVANCED MATERIALS-RAPID COMMUNICATIONS, 6 (11-12). pp. 953-959.

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Abstract

Undoped and co-doped (Ag, Co) ZnO powders were synthesized by chemical co-precipitation method without using any capping agent. The X-ray diffraction results indicate that the undoped and co-doped ZnO powders have pure hexagonal structure and are consisting of nanosized single-crystalline particles. The size of the nanoparticles increases with increasing Ag concentration from 1 to 5 mol% as compared to that of undoped ZnO. The presence of substitution dopants of Ag and Co in the ZnO host material was confirmed by the Energy dispersive analysis of X-rays (EDAX). Optical absorption measurements indicate blue shift and red-shift in the absorption band edge upon doping concentration of Ag and blue emission was observed by photoluminescence (PL) studies.

Item Type: Journal Article
Additional Information: Copy right for this article belongs to NATL INST OPTOELECTRONICS, ROMANIA
Keywords: ZnO nanoparticles;Co-precipitation method;Structural properties;Optical properties;EDS (EDAX)
Department/Centre: Division of Interdisciplinary Research > Centre for Nano Science and Engineering
Depositing User: Francis Jayakanth
Date Deposited: 06 Feb 2013 12:21
Last Modified: 06 Feb 2013 12:21
URI: http://eprints.iisc.ac.in/id/eprint/45743

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