Nanoscale Capacitance–Voltage Characterization of Two-Dimensional Electron Gas in AlGaN/GaN Heterostructures
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概要
- 論文の詳細を見る
A simple technique for quantitative nanoscale capacitance–voltage ($C$–$V$) measurements has been developed and used to characterize the two-dimensional electron gas (2DEG) at the interface of AlGaN/GaN heterostructures. The measurements indicate change in confinement of the 2DEG at the AlGaN/GaN interface depending on the direction of the dc voltage sweep during $C$–$V$ measurements, indicating surface state charging and discharging. Under UV illumination, the 2DEG increased significantly as inferred from the increase in threshold voltage of the nanoscale $C$–$V$ scans, while no change in 2DEG confinement was observed.
- INSTITUTE OF PURE AND APPLIED PHYSICSの論文
- 2005-10-10
著者
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Cha Ho-young
School Of Electrical And Computer Engineering Cornell University
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Lakshmanan L.
Department Of Electrical And Computer Engineering University Of South Carolina
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Gaevski M.
Department Of Electrical And Computer Engineering University Of South Carolina
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Koudymov A.
Department Of Electrical And Computer Engineering University Of South Carolina
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Tipirneni N.
Department Of Electrical And Computer Engineering University Of South Carolina
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Simin G.
Department Of Electrical And Computer Engineering University Of South Carolina
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Koley G.
Department Of Electrical And Computer Engineering University Of South Carolina
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Spencer M.
School Of Electrical And Computer Engineering Cornell University
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Khan A.
Department Of Civil Engineering Clemson University
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Gaevski M.
Department of Electrical and Computer Engineering, University of South Carolina, Columbia, SC 29208, U.S.A.
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Lakshmanan L.
Department of Electrical and Computer Engineering, University of South Carolina, Columbia, SC 29208, U.S.A.
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Spencer M.
School of Electrical and Computer Engineering, Cornell University, Ithaca, NY 14853, U.S.A.
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Koudymov A.
Department of Electrical and Computer Engineering, University of South Carolina, Columbia, SC 29208, U.S.A.
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Koley G.
Department of Electrical and Computer Engineering, University of South Carolina, Columbia, SC 29208, U.S.A.
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