Study of blue shift in Iron (Fe) doped ZnO Nanoparticles at different Molarities by Wet Chemical Method

Anup Kr Kalita¹ , Sanjib Karmakar²

Section:Research Paper, Product Type: Isroset-Journal
Vol.7 , Issue.1 , pp.80-82, Feb-2019

CrossRef-DOI:   https://doi.org/10.26438/ijsrpas/v7i1.8082

Online published on Feb 28, 2019

Copyright © Anup Kr Kalita, Sanjib Karmakar . This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
 

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Abstract :
Iron (Fe) doped Zinc Oxide (ZnO) nanoparticle is a very important topic of study in the field of nanoscience and nanotechnology. We have prepared Iron doped ZnO nanoparticles by Wet chemical method. We report the optical properties of Iron (Fe) doped ZnO nanoparticles at different molarities (0.025M, 0.05M and 0.1M). The band gaps of all nanoparticles prepared at different molarities are calculated with the intercept on Y-axis of Tauc plot from UV absorption spectra using UV-Vis Absorption spectroscopy. It has been observed that band gap decreases as the molarity increases. At 0.025M, 0.05M and 0.1M band gap are found to be 4.9eV, 4.89eV and 2.7eV respectively. This reduction in band gap suggest that the band gap of prepared nanoparticles are shifted towards lower energy. This shifting in band gap the blue region gives the idea of blue shift quite well. This blue shift is dependent on the particle size of the nanoparticles.

Key-Words / Index Term :
Blue shift, Band Gap, Optical proerties, Wet Chemical technique, Molarity

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