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Shabanpour Z, Eshghi H. An Investigation on precursor volume effect on structural and optical properties of nano-structured NiO layers prepared by spray pyrolysis technique.. ICOP & ICPET _ INPC _ ICOFS 2015; 21 :357-360
URL: http://opsi.ir/article-1-536-en.html
URL: http://opsi.ir/article-1-536-en.html
1- shahrood university
Abstract: (4299 Views)
Nickel oxide (NiO) thin films are deposited on glass substrate by spray pyrolysis method with various precursor volumes of 50, 75 and 100 ml. The FESEM images are indicated the formation of nano-metric structures, and the structural characterizations using XRD spectra showed the formations of cubic polycrystalline structures in the layers with (111) as the preferred direction. The optical characterizations also revealed that the optical band gaps of the layers are decreased from ~3.6 to 3.4 eV with the increment of the precursor volume, also the absorption coefficients of the layers in UV-range are about 105 cm-1. The data analysis showed that the sample prepared with 100 ml precursor volume has the lowest penetration depth (less than 200 nm) in the UV-range.
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