Preparation of ZnO Nanorods by Hydrothermal Process 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.5 , pp.12-15, Oct-2017

CrossRef-DOI:   https://doi.org/10.26438/ijsrpas/v5i5.1215

Online published on Oct 30, 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 for the synthesis of ZnO (Zinc Oxide) nanorods we have used hydrothermal process. Seed layers were deposited on FTO (Fluorine doped tin oxide) glass substrates using electro deposition method with zinc nitrate dehydrate. ZnO nanorods were synthesized on annealed seeded layer by hydrothermal method using hexamethylenetetramine as a precipitant and zinc nitrate dehydrate as source at different temperatures 50°C, 65°C, 75°C, and 85°C. The crystal surfaces were investigated by Scanning Electron Microscopy (SEM). SEM produces image by using electrons rather than light photons. A beam of electrons is sent by electron gun which follows the vertical path and after travelling through the magnetic lens it hits the sample. After the beam hits the sample, electrons and X-rays are ejected and collected by detector to give final image. It is found that the dimension of ZnO nanorods changed with different temperature. SEM images show that the average diameters of ZnO nanorods are about 10-15 nm by changing growth temperature. The smallest diameter of ZnO nanorods is observed while the growth temperature is equal to 50 ℃. ZnO nanorods have applications in Quantum Dot Sensitized Solar Cells (QDSSC).

Key-Words / Index Term :
Nanorods , Hydro thermal , SEM images , Nano struture , Zinc Oxide

References :
[1] W.U. Huynh, J.J. Dittmer, A.P. Alivisatos, “Investigation of Properties of ZnO Nanorad Structures by Chemical Vapor Deposition”, Science, vol.295, pp.2425-2427, 2002.
[2] T. Stubinger, W. Brutting,“Exciton diffusion andoptical interference in organic donor-acceptor photovoltaic cells”, Journal of Applied Physics, vol.90, pp.3632-3641, 2001.
[3] C.J. Brabec, N.S. Sariciftci, J.C. Hummelen, “Origin of the Open Circuit Voltage of Plastic Solar Cells”, Advanced Functional Materials, vol.11, pp.15-26, 2001.
[4] B. Pradhan, A. Bandyopadhyay, A. J Pal, “Tuning performance of donor-acceptor based self-assembled photovoltaic devices”, Applied Physics Letters, vol.85, pp.633, 2004.
[5] 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.
[6] Y.C. Kong, D.P. Yu, B. Zhang,W. Fang, S.Q. Feng, “Ultraviolet-emitting ZnO nanowires synthesized by a physical vapor deposition approach,”, Applied Physics Letters, vol.78, pp.407-409, 2001
[7] J.-J. Wu, S.C. Liu, “Low-Temperature and Catalyst-Free Synthesis of Well-Aligned ZnO Nanorods on Si (100)”, Advanced Matererials, vol.14, pp.215-218, 2002.
[8] J.-J. Wu, S.C. Liu, “Catalyst-Free Growth and Characterization of ZnO Nanorods”, Journal of Physical Chemistry B, vol.106, pp.9546-9551, 2002.
[9] 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.
[10] Y. Li, G.W. Meng, L.D. Zhang, F. Phillipp, “Ordered semiconductor ZnO nanowire. Arrays and their photoluminescence properties”, Applied Physics Letters, vol.76, pp.2011-2014, 2000.
[11] 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.
[12] 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
[13] 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.
[14] L. Vayssieres, K. Keis, S. Lindquist, A. Hagfeldt, “Hydrothermal Synthesis and Properties of Diluted Magnetic Semiconductor Zn1-xMnxO Nanowires”, Journal of Physical Chemistry B, vol.105, pp.3350-3352, 2001.
[15] 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.
[16] Z. Qiu, K.S. Wong, M. Wu, W. Lin, H. Xu, “Microcavity lasing behavior of oriented hexagonal ZnO nanowhiskers grown by hydrothermal oxidation ”,Applied Physics Letters, vol. 84, pp. 2739-2741, 2004.