期刊
JOURNAL OF APPLIED PHYSICS
卷 106, 期 6, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.3224852
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资金
- Toyota Motor Corporation
- ONR MURI DRIFT
A revised method to measure the interface state density of Si3N4/GaN metal-insulator-semiconductor diodes is reported. The wide band gap of GaN suppresses hole generation at room temperature and consequently allows measurements in deep depletion. Using the method outlined in this paper, the total interface state density can be measured throughout the bandgap above the bias in deep depletion utilizing an above bandgap light source. We report a peak interface state density of 5.0 x 10(12) cm(-2) eV(-1) at similar to 0.3 eV using this procedure, whereas the Terman method reports a peak of < 2 x 10(11) cm(-2) eV(-1) for the same Si3N4/GaN metal-insulator-semiconductor diode without illumination. (C) 2009 American Institute of Physics. [doi: 10.1063/1.3224852]
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