Optical and Electrical Properties of ZnO Nanorods at different Temperatures

R.K. Das¹

1. Dept. of Physics, Charuchandra College (University of Calcutta), Kolkata, India.

Correspondence should be addressed to: rkdas_171171@rediffmail.com.

Section:Research Paper, Product Type: Isroset-Journal
Vol.5 , Issue.6 , pp.9-12, Dec-2017

CrossRef-DOI:   https://doi.org/10.26438/ijsrpas/v5i6.912

Online published on Dec 31, 2017

Copyright © R.K. Das . 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 :
Here ZnO (Zinc Oxide) nanorods are synthesized by using hydrothermal process. ZnO nanorods were synthesized on annealed seeded layer by hydrothermal method at different temperatures 50°C, 65°C, 75°C, and 85°C. Optical and electrical properties were studied using Diffused Reflectance Spectra analyser (DRS) and current-voltage measurements are done on the prepared ZnO nanorods thin films. Diffused reflectance occurs when the incident radiation beam is focused on the sample at a particular temperature and the surface of the sample is rough or irregular so that a part of the incident beam is reflected which is considered to be diffuse reflection. Then the back reflected and diffusely scattered light is collected by the detector. The UV spectra analyser shows the absorption peaks appear at 366nm, 367nm, 366nm and 369nm while growth temperature increases from 50 ℃ to 85 ℃. Band Gap energy of the sample is also calculated at different temperatures. ZnO nanorods have huge applications in nanotechnology.

Key-Words / Index Term :
ZnO, Nanorods, Optical, Electrical Properties, Diffusedr eflectance, QDSSC

References :
[1] M.H. Huang, Y.Wu, H. Feick, N. Tran, E.Weber, P.Yang, “Catalytic growth of zinc oxide nanowires by vapour transport,” Advanced. Materials, vol.13, pp.113-116, 2001.
[2] Y.C. Kong, D.P. Yu, B. Zhang,W. Fang, S.Q. Feng,“Ultraviolet-emitting ZnO nanowires synthesized by a physical vapour deposition approach,”, Applied Physics Letters, vol.78, pp.407-409, 2001
[3] J.-J. Wu, S.-C. Liu, “Low-Temperature and Catalyst-Free Synthesis of Well-Aligned ZnO Nanorods on Si (100),”Advanced Materials, vol.14, pp.215-218, 2002.
[4] G. Chandraprabha, T. Sankarappa, T. Sujatha, “Structure and magnetic studies of Cobalt Nanoparticles prepared by Modified Polyol Process”, International Journal of Scientific Research in Physics and Applied Sciences, vol.5, Issue 4, pp. 17-20, 2017.
[5] C.X. Xu, A. Wei, X.W. Sun, Z.L. Dong, “Aligned ZnO nanorods synthesized by a simple hydrothermal reaction.”, Journal of Physics D :Applied Physics, Vol.39, pp. 1690-1693, 2006.
[6] J. Song, S. Baek, S. Lim, “Effect of hydrothermal reaction conditions on the optical properties of ZnO nanorods”, Physics.B: Condensed Matter, Vol. 403 ,pp.1960-1963, 2008.
[7] L. Vayssieres, K. Keis, S. Lindquist, A. Hagfedt, “Hydrothermal Synthesis and Properties of Diluted Magnetic Semiconductor Zn 1- xMn x O Nanowires”, Journal of Physical Chemistry B, Vol. 105, pp.3350-3352, 2001.
[8] B. Liu, C.H. Zeng, “Hydrothermal Synthesis of ZnO Nanorods in the Diameter Regime of 50 nm”, Journal of American Chemical Society, Vol. 125, pp. 4430-4431, 2003.
[9] Z. Qiu, K.S. Wong, M. Wu, W. Lin, H. Xu, “Microcavity lasing behaviour of oriented hexagonal ZnO nanowhiskers grown by hydrothermal oxidation”, Applied Physics Letters, Vol.84, pp.2739-2741, 2004.
[10] R.K. Das, “Preparation of ZnO Nanorods by Hydrothermal Process at Different Temperatures”, International Journal of Scientific Research in Physics and Applied Sciences, vol.5, Issue 5, pp. 12-15, 2017.
[11] J.-J. Wu, S.-C. Liu, “Catalyst-Free Growth and Characterization of ZnO Nanorods,”,Journal of Physical Chemitry B, Vol.106, pp.9546-9551, 2002.
[12] J. Zhang, L. Sun, H. Pan, C. Liao, C. Yan, “ZnO nanowires fabricated by a convenient route”, New Journal of Chemistry, Vol.26, pp.33-34, 2002.
[13] Y. Li, G.W. Meng, L.D. Zhang, F. Phillipp, “Ordered semiconductor ZnO nanowire. Arrays and their photo luminescence properties”, Applied Physics Letters, Vol.76, pp.2011-2014, 2000.