Publication: Electrical properties inorganic-on-organic hybrid gaas/graphene oxide schottky barrier diode
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Authors
Kırsoy, Ahmet
Ahmetoğlu, Muhitdin A.
Authors
Okutan, Mustafa
Yakuphanoğlu, Fahrettin
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Amer Scientific Publishers
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Abstract
The Au88Ge12 alloy/n-type GaAs(100)/Graphene Oxide (GO)/Au Schottky barrier diode has been fabricated. GO has been prepared by Hummers method and deposited on the GaAs substrate by spraying method. Schottky diode was investigated under dark and light intensity by the current-voltage (I-V) characteristics of the heterojunction. Thermionic current mechanism above the barrier has been detected by current-voltage measurements. It was found that the barrier height increases and the ideality factor decreases with light intensity. The obtained results indicate that GaAs/GO diode can be used as a photosensor in optoelectronic applications. Also, Schottky diode has been measured by capacitance-voltage (C-V) and conductance-voltage (G-V) in the frequency range from 10 kHz to 1 MHz at room temperature.
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Keywords
Engineering, Science & technology - other topics, Physics, Graphene oxide, GaAs, Schottky contacts, Current-voltage, Negative capacitance, Series resistance, Electronic parameters, Voltage-dependence, V characteristics, Interface states, C-V, Frequency, Temperature, Interlayer, Capacitance, Diodes, Gallium arsenide, Germanium, Graphene, Heterojunctions, Semiconducting gallium, Capacitance voltage, Current voltage, Current voltage measurement, Graphene oxides, Optoelectronic applications, Thermionic currents, Schottky barrier diodes
Citation
Kırsoy, A. vd. (2016). "Electrical properties inorganic-on-organic hybrid gaas/graphene oxide schottky barrier diode". Journal of Nanoelectronics and Optoelectronics, 11(1), 108-114.