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Title of Journal: J Mater Sci Mater Electron

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Abbravation: Journal of Materials Science: Materials in Electronics

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Springer US

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DOI

10.1016/0022-3115(85)90422-2

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ISSN

1573-482X

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Switching in structural optical and magnetic pro

Authors: Richa Bhargava Prashant K Sharma Sushant Singh Mohit Sahni Avinash C Pandey Naresh Kumar
Publish Date: 2013/11/24
Volume: 25, Issue: 1, Pages: 552-559
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Abstract

Here we report on the selfassembled Codoped ZnO nanoparticles synthesized by using sol–gel technique It has been observed that when Co is introduced in the solution nanoparticles arrange themselves into a particular pattern This selfassembly of Zn1−xCoxO were found to be consistent with the change in Codoping concentration Using electron microscopy these systems were studied to confirm the assembly formation with doping Optical study of these assemblies suggests the decrease in direct band gap of these systems with the increase in doping concentration In addition to it the Urbach energy was found to be increased indicating the redistribution of states in between conduction and valence band with doping Magnetic measurement shows the introduction of paramagnetic behavior with Codoping in this selfassembled Codoped ZnO

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