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Characterization of ITO/Ag and ITO/Ni Bi-Layer transparent conductive electrodes

Ali, Ahmad Hadi and Shuhaimi, Ahmad and Ahmad , Mohd Anas and Hassan, Zainuriah (2014) Characterization of ITO/Ag and ITO/Ni Bi-Layer transparent conductive electrodes. Advanced Materials Research, 1024. pp. 75-78. ISSN 1662-8985

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Abstract

This paper reports on ITO/Ag and ITO/Ni thin transparent conductive electrodes (TCE) for optoelectronics device applications. The ITO/Ag and ITO/Ni bi-layer TCE were deposited on Si and glass substrates by thermal evaporator and radio frequency (RF) magnetron sputtering. Postannealing was performed on the samples at 600°C in air. Electrical, optical and morphological characteristics were investigated by means of Hall Effect measurement system, UV-Vis spectrophotometer and atomic force microscope (AFM). The measured electrical resistivity of ITO/Ag (0.5 × 10⁻⁴ Ωcm) is lower than ITO/Ni (1.2 × 10⁻⁴ Ωcm) due to the high carrier concentration of ITO/Ag of 12.0 × 10²¹ cm⁻ᶟ. Optical transmittance at visible ranges of ITO/Ag (70%) is higher than the ITO/Ni (44%). Higher surface roughness and smaller grain sizes of ITO/Ag as compared to the ITO/Ni are factors that contribute to the good quality of TCE characteristics.

Item Type: Article
Uncontrolled Keywords: ITO/Ag; ITO/Ni; Sputtering; Resistivity; Transmittance.
Subjects: Q Science > QC Physics
Divisions: Faculty of Applied Science and Technology > Department of Science
Depositing User: Normajihan Abd. Rahman
Date Deposited: 13 Aug 2018 03:32
Last Modified: 13 Aug 2018 03:32
URI: http://eprints.uthm.edu.my/id/eprint/9798
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