Paper
8 September 2015 Investigation of electrical, optical and structural properties of sputtered indium tin oxide thin film
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Abstract
Transparent and conductive Indium Tin Oxide (ITO) films were grown on borosilicate glass substrate by radio frequency (RF) magnetron sputtering process. The effects of sputtering parameters e.g. substrate temperature and RF power levels on electrical, optical and structural properties were examined. The crystallinity, conductivity and optical transparency of the films were evaluated by X-ray diffraction, four-point probe measurement, laser ellipsometry, and optical spectroscopy. The surface roughness and grain size of the films were also investigated using scanning probe microscopy. This paper reports the non-monotonical dependence of substrate temperature on the nanostructure and phases and the complex impact of RF power levels to the conductivities and the optical properties. The critical role of oxygen partial pressure on the energy bandgaps is also inferred.
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Md. Tanvir Hasan, Amar Bhalla, and Ruyan Guo "Investigation of electrical, optical and structural properties of sputtered indium tin oxide thin film", Proc. SPIE 9586, Photonic Fiber and Crystal Devices: Advances in Materials and Innovations in Device Applications IX, 95860J (8 September 2015); https://doi.org/10.1117/12.2188971
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KEYWORDS
Transmittance

Sputter deposition

Oxygen

Temperature metrology

Thin films

Oxides

Surface roughness

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