Effect of Substrate Temperature on Properties of Nickel Oxide (NiO) Thin Films by Spray Pyrolysis
| Autor: | Suraj C. Bulakhe, R.J. Deokate, R. S. Kate |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
010302 applied physics
Thermogravimetric analysis Materials science genetic structures Band gap Non-blocking I/O Analytical chemistry 02 engineering and technology Substrate (electronics) Dielectric 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences eye diseases Electronic Optical and Magnetic Materials Differential thermal analysis 0103 physical sciences Materials Chemistry Transmittance sense organs Electrical and Electronic Engineering Thin film 0210 nano-technology |
| Zdroj: | Journal of Electronic Materials. 48:3220-3228 |
| ISSN: | 1543-186X 0361-5235 |
| DOI: | 10.1007/s11664-019-07074-0 |
| Popis: | NiO thin films were deposited on a glass substrate and investigated for the physical properties optimized through substrate temperature (350–390°C) using a spray pyrolysis technique. The effect of substrate temperature on deposited NiO thin film was studied by thermogravimetric analysis and differential thermal analysis, X-diffraction (XRD), field electron scanning electron microscopy, optical absorption and electrical measurement techniques. XRD analysis indicates that NiO thin films are of a polycrystalline cubic structure. Optical properties are calculated with help of transmittance and absorbance data in the wavelength range between 200 nm and 900 nm. The optical band gap energy values increased from 3.1 eV to 4.0 eV with substrate temperature. Further, the extinction coefficient, refractive index, and real and imaginary parts of dielectric constant and optical conductivities of NiO thin films were calculated. The electrical resistivity measurement shows conductivity of the NiO thin film increased with increase in substrate temperature. |
| Databáze: | OpenAIRE |
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