Doping effect of Ag+, Mn2+ ions on Structural and Optical Properties of ZnO nanoparticles

Reddy, Sankara B and Reddy, Venkatramana S and Reddy, Venkateswara P and Reddy, Koteeswara N and Vijayalakshmi, RP (2015) Doping effect of Ag+, Mn2+ ions on Structural and Optical Properties of ZnO nanoparticles. In: Conference: International Conference on Materials Science and Technology (ICMST) , JUN 10-14, 2012, Kerala, INDIA. (In Press)

PDF int_con_mat_sci_tec_(ICMST2012)-73_2015.pdf - Published Version Restricted to Registered users only Download (908kB) | Request a copy

Abstract

Pure ZnO and co-doped (Mn, Ag) ZnO nanoparticles have been successfully prepared by chemical co-precipitation method without using a capping agent. X-ray diffraction (XRD) studies confirms the presence of wurtzite (hexagonal) crystal structure similar to undoped ZnO, suggesting that doped Mn, Ag ions are substituted to the regular Zn sites. The morphology of the samples were studied by scanning electron microscopy (SEM). The chemical composition of pure and co-doped ZnO nanoparticles were characterized by energy dispersive X-ray analysis spectroscopy (EDAX). Optical absorption properties were determined by UV-vis Diffuse Reflectance Spectrophotometer. The incorporation of Ag+, Mn2+ in the place of Zn2+ provoked to decrease the size of nanocrystals as compared to pure ZnO. Optical absorption measurements indicates blue shift in the absorption band edge upon Ag, Mn ions doped ZnO nanoparticles.

Item Type:	Conference Proceedings
Series.:	IOP Conference Series-Materials Science and Engineering
Publisher:	IOP PUBLISHING LTD
Additional Information:	Copyright for this article is belongs to the IOP PUBLISHING LTD, DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND
Keywords:	Pure ZnO; co-doped ZnO nanoparticles; co-precipitation method; SEM; EDAX; DRS
Department/Centre:	Division of Interdisciplinary Sciences > Centre for Nano Science and Engineering
Date Deposited:	18 May 2015 05:14
Last Modified:	18 May 2015 05:14
URI:	http://eprints.iisc.ac.in/id/eprint/51540

Actions (login required)

View Item