Effects of an additional magnetic field in ITO thin film deposition by magnetron sputtering

Title
Effects of an additional magnetic field in ITO thin film deposition by magnetron sputtering
Author(s)
곽진석허경찬손영구
Keywords
INDIUM OXIDE-FILMS; OPTICAL-PROPERTIES; LOW-RESISTIVITY; BOMBARDMENT; EVAPORATION; PLASMA
Issue Date
201501
Publisher
ELSEVIER SCI LTD
Citation
CERAMICS INTERNATIONAL, v.41, no.1, pp.617 - 621
Abstract
Indium tin oxide (ITO) thin films were deposited on glass substrates at low temperature (100 degrees C) and under a range of magnetic fields driven from the currents of a solenoid coil placed inside the magnetron sputtering apparatus. Electrons moving in a specific direction by the Lorentz force collide with neutral ITO particles with a higher collision likelihood. Eventually, the magnetic field plays a key role in increasing the ionized ITO particles. Therefore, this study examined the influence of the magnetic fields by the solenoid coil near the target on the structural, surface morphologies, electrical, and optical properties of these thin films. As a result, with increasing coil current from 0 A to 0.2 A, the electrical resistivity of the ITO films decreased from 1.23 x 10(-3) Omega cm to 5.57 x 10(-4) Omega cm. As complementary results, hall mobility and carrier concentration increased slightly, which were attributed to crystal growth, density and grain size of the ITO film. Furthermore, X-ray diffraction showed that increasing the ITO ion density by the magnetic field in the deposition process was effective in inducing the preferential growth of the (222) orientation of the film. (C) 2014 Elsevier Ltd and Techna Group S.r.l. All rights reserved.
URI
http://hdl.handle.net/YU.REPOSITORY/33703http://dx.doi.org/10.1016/j.ceramint.2014.08.111
ISSN
0272-8842
Appears in Collections:
이과대학 > 물리학과 > Articles
이과대학 > 화학생화학부 > Articles
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