Abstract
Metalorganic chemical vapour deposition (MOCVD) method was used to deposit zinc oxide thin films on soda-lime glass substrates at temperatures of 330°C, 360°C, 390°C and 420°C, using zinc acetate as the precursor. Compressed air was used as the carrier gas at a flow rate of 2.5 dm3 per minute. Each deposition was carried out for two hours under atmospheric pressure. FTIR measurements were subsequently made on the produced thin films to determine their struc ture and trend with deposition temperatures. The measurements showed the presence of lingering functional groups of organic, oxide and nitride origin, which prominently moderated the natural vibrational modes of the material within their respective affiliate wavenumbers, as well as three slight but evident trends in absorbance peaks, cut-off wave length, and the existence of the functional groups with temperature. The produced materials are expected to be useful for enhanced solar cells, triggering sensor devices, p-doped zinc oxide, etc.
Highlights
Zinc oxide is a common material that continues to assume versatile technological prominence unabated [1,2,3,4,5,6]
Metalorganic chemical vapour deposition (MOCVD) method was used to deposit zinc oxide thin films on soda-lime glass substrates at temperatures of 330 ̊C, 360 ̊C, 390 ̊C and 420 ̊C, using zinc acetate as the precursor
In this work the Fourier Transform Infrared (FTIR) of zinc oxide thin films deposited at various temperatures on soda-lime glass substrate was reported
Summary
Zinc oxide is a common material that continues to assume versatile technological prominence unabated [1,2,3,4,5,6]. Zinc oxide thin films are strategically useful as anti-reflectors, solar cells and transparent semiconductors which are invaluable in optoelectric display units, transparent contacts, light emitting diodes, photosensors, gas sensors, piezoelectric and spintronic materials, etc. Their high optical transmittance (over 80%), energy bandgap (3.2 3.4 eV), crystal structure, and good optical and thermal stability make them especially invaluable for these applications [7,8,9,10,11].
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