Effect of substrate temperature on the properties of pyrolytically deposited nitrogen-doped zinc oxide thin films

Golshahi, S.; Rozati, Seyed Mohammad; Rego, A.M. Botelho do; Wang, J.; Elangovan, E.; Martins, Rodrigo; Fortunato, Elvira

doi:10.1016/j.mseb.2012.10.021

Cited by 5 publications

(1 citation statement)

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“…37,38 Among the different methods for film deposition, spray pyrolysis is suitable for the preparation of efficient, time-resistant and inexpensive thin films. 2 It is very simple, low cost 39 and does not require vacuum or exotic gas. In this method, fine droplets react on the heated substrate, owing to the pyrolytic decomposition of the solution.…”

Section: Introductionmentioning

confidence: 99%

Optical and morphological investigation of aluminium and nickel oxide composite films deposited by spray pyrolysis method as a basis of solar thermal absorber

Khatibani

Rozati

2015

Bull Mater Sci

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Applications of alumina and nickel oxide in various fields specially in solar energy conversion technology encouraged us to study physical properties of such materials. Hence after the deposition of the thin films on glass substrate by spray pyrolysis, using X-ray diffraction (XRD), scanning electron microscopy (SEM), and UV-visible spectrophotometry, various physical properties were investigated. Different optical quantities such as optical band gap, refractive index, extinction coefficient, dielectric constants, volume and surface energy loss functions and optical conductivity were determined. Within this paper for different nickel to aluminium ratio (from 20/80 to 80/20 ratio) at specific substrate temperatures (300 • C), decrease of optical transmittance with nickel content was notable. Using the transmittance data, other optical quantities were achieved by a numerical approximation method. We also observed an increase in the volume energy loss (VELF) more than the surface energy loss (SELF) and simultaneously a decrease trend prevailed according to nickel amount. On the basic of the XRD results, the amorphous phase changed by the presence of more nickel and according to SEM, more obvious nanosized spherical grains at higher nickel ratios can be observed.

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Section: Introductionmentioning

confidence: 99%