Low Temperature Growth of ZnO Nanorods by Chemical Bath Method

2008 ◽  
Vol 54 ◽  
pp. 305-310 ◽  
Author(s):  
Parameswar Hari ◽  
Daryl Spencer
Keyword(s):  
Low Temperature ◽  
Surface Morphology ◽  
Tin Oxide ◽  
Indium Tin Oxide ◽  
Electronic Device ◽  
Low Cost ◽  
Zno Nanorods ◽  
Oxide Glass ◽  
Coated Glass ◽  
Glass Substrates

ZnO nanorods grown by chemical bath methods are of great interest in photovoltaic and electronic device applications because they offer low cost, low temperature deposition techniques compared to conventional molecular beam vapor deposition and sputtering methods. Our previous studies of ZnO nanorods grown by chemical bath technique on indium tin oxide (ITO) coated glass substrates at 90 C for 8-10 hours resulted in uniform growth of hexagonally shaped closed nanorod structures. We used scanning electron microscopy (SEM) and atomic force microscopy (AFM) techniques to map changes in surface morphology of nanorods grown on various substrates. Morphology of ZnO nanorods at temperatures 80C, 90C, 95C and 100C for 9 hours of hydrothermal growth also resulted in hexagonal shaped nanorods of various sizes and surface roughness. In addition, we studied the changes in surface morphology of ZnO nanorods on indium tin oxide coated glass, aluminum coated glass, and conducting tin oxide glass substrate. In this paper, we present quantitative data on changes in cluster size and shape of nanorods as the growth substrate and deposition temperature are varied. We will also discuss conductivity changes of ZnO nanorods deposited on various substrates.

Low temperature improvement method on characteristics of Ba(Zr0.1Ti0.9)O3 thin films deposited on indium tin oxide/glass substrates

2009 ◽  
Vol 99 (1) ◽  
pp. 291-295 ◽  
Author(s):  
Kai-Huang Chen ◽  
Ting-Chang Chang ◽  
Guan-Chang Chang ◽  
Yung-En Hsu ◽  
Ying-Chung Chen ◽  
...  
Keyword(s):  
Thin Films ◽  
Low Temperature ◽  
Tin Oxide ◽  
Indium Tin Oxide ◽  
Oxide Glass ◽  
Glass Substrates ◽  
Improvement Method ◽  
Indium Tin Oxide Glass

Growth and Characterisation of Ag2S Films on ZnS/Indium-Tin-Oxide Coated Glass

2013 ◽  
Vol 721 ◽  
pp. 33-36 ◽  
Author(s):  
Hong Cheng Pan ◽  
Xue Peng Li ◽  
Wei Hong Liu ◽  
Yan Bin Ren
Keyword(s):  
Tin Oxide ◽  
Indium Tin Oxide ◽  
Phosphate Buffer Solution ◽  
Deposition Method ◽  
X Ray Diffraction ◽  
Buffer Solution ◽  
Solution Ph ◽  
X Ray ◽  
Coated Glass ◽  
Glass Substrates

ZnS thin films were deposited on indium–tin-oxide (ITO) coated glass substrates by a chemical bath deposition method. Then the ZnS/ITO slides were immersed in the solution containing 6 mM phosphate buffer solution (pH 7.4), sodium polyacrylate (0.01% w/w), and 0.24 mM AgNO3 at 37°C for 3 h to growth Ag2S films on the surface of ZnS/ITO slides. The absorption band of Ag2S/ZnS/ITO slide displays a considerably blue-shifted. The X-ray diffraction analysis demonstrated the presence of acanthite Ag2S on the surface of ZnS/ITO slides, which is consistent with the cyclic voltammetic data.

pH study of zinc oxide nanorods grown on indium tin oxide coated substrate,

2014 ◽  
Vol 92 (7/8) ◽  
pp. 838-841 ◽  
Author(s):  
Kevin Farmer ◽  
Parameswar Hari ◽  
Kenneth Roberts
Keyword(s):  
Zinc Oxide ◽  
Chemical Bath Deposition ◽  
Tin Oxide ◽  
Indium Tin Oxide ◽  
Electronic Device ◽  
Ph Dependence ◽  
Zno Nanorods ◽  
Zinc Oxide Nanorods ◽  
Visible Range ◽  
Oxide Nanorods

Controlled growth of ZnO nanorods on various substrates is of great interest in photonic and electronic device applications. Also of interest is increasing the optical activity of zinc oxide nanorods in the visible spectrum. In this study, we report pH dependence for the morphology and photoluminescence of aligned ZnO nanorods grown on an indium tin oxide (ITO) coated glass substrate deposited by a wet chemical bath deposition method. The ZnO nanorods were grown by a chemical bath deposition technique using equimolar ratios of zinc (II) nitrate and hexamethylenetetramine in solution at 95 °C. The pH of the reaction solution prior to oven heating was varied from pH 5 to 10.6. Surface properties of the ZnO nanorods on ITO substrates were studied using scanning electron microscopy and photoluminescence spectroscopy. We also compared the use of NaOH to adjust the pH with the use of NH4OH, the latter necessary at higher pH due to the relative insolubility of zinc. It was found that the size of the nanorods can vary twofold with pH and the choice of base. Uniformity of coverage is also significantly dependent upon these variables and will be discussed as it relates to solubility and crystal growth. It was also found that the intensity of the photoluminescence in the visible range is pH dependent. For example, the intensity of luminescence at 550 nm for ZnO nanorods grown at pH 7 using NH4OH is 532% of the corresponding emission for a sample prepared at pH 5.

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