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An Investigation of Electrical and Dielectric Parameters of Sol-Gel Process Enabled β-Ga2O3 as a Gate Dielectric Material
被引:29
作者:
Kaya, Ahmet
[1
]
Mao, Howard
[1
]
Gao, Jianyi
[1
]
Chopdekar, Rajesh V.
[2
]
Takamura, Yayoi
[2
]
Chowdhury, Srabanti
[1
]
Islam, M. Saif
[1
]
机构:
[1] Univ Calif Davis, Dept Elect & Comp Engn, Davis, CA 95616 USA
[2] Univ Calif Davis, Dept Mat Sci & Engn, Davis, CA 95616 USA
关键词:
beta-Ga2O3 dielectric film;
dielectric properties;
electrical properties;
IMPEDANCE SPECTROSCOPY;
GALLIUM OXIDE;
RELAXATION;
LAYER;
FILMS;
CONDUCTIVITY;
D O I:
10.1109/TED.2017.2675990
中图分类号:
TM [电工技术];
TN [电子技术、通信技术];
学科分类号:
0808 ;
0809 ;
摘要:
In this paper, beta-Ga2O3 thin films were grown on a p-Si substrate using the sol-gel method. Structural characterization of the films was performed using X-ray diffraction. Electrical parameters such as breakdown field, interface traps density (D-it), and series resistance (R-s) were investigated at room temperature. The interface trap density was found to be 10(12) eV(-1)cm(-2) using the Hill-Colemanmethod. This result is valuable forMOS capacitor applications. Dielectric parameters were investigated in the wide frequency range (20 kHz-1 MHz) at room temperature. We observed that these parameters have a strong dependence on frequency and voltage.
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页码:2047 / 2053
页数:7
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