Abstract
Synthesis of cerium (Ce) doped zinc oxide (ZnO) nanowire has been carried out using chemical bath deposition over seed layer. The seed layer of Ce doped ZnO thin film was deposited by spin coating method. Effect of Ce doping on optical and structural properties of nanowire has been explored to optimize the performance of nanowires for their applicability in light emitting devices. High resolution field emission scanning electron microscopy (FESEM) clearly reveals nanowire growth for 15% of Ce in ZnO. Optical band gap of the films was found to increase with an increase in Ce concentration in ZnO. All Ce doped ZnO thin films exhibits more than 90% transparency in the visible region and show absorption sharply in ultra-violet region at approximate 375 nm. Transmittance of the nanowire in visible region is showing an average transmittance of 61%. The photoluminescence (PL) spectra in all samples exhibit a strong ultraviolet emission at the near band edge centered at 389 nm due to free exciton recombination. A broad blue visible emission peak for all the samples located at 467 nm was seen to be originated due to the interstitial position of Zn2+ ions.
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Authors (USS and CKK) are grateful to university grants commission, New Delhi, India for providing research fellowship to carry out this work.
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Kasar, C.K., Bange, J.P. & Patil, D.S. Effect of cerium composition on optical and structural properties of cerium doped ZnO nanowires. J Mater Sci: Mater Electron 28, 11217–11221 (2017). https://doi.org/10.1007/s10854-017-6910-x
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DOI: https://doi.org/10.1007/s10854-017-6910-x