Superlattices and Microstructures volume 40, issue 4-6, P214-218 2006 DOI: 10.1016/j.spmi.2006.09.015 View full text
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M. Hiroki, H. Yokoyama, N. Watanabe, T. Kobayashi

Abstract: We fabricated high-quality InAlN/GaN heterostructures by metal-organic vapor phase epitaxy (MOVPE). X-ray diffraction measurements revealed that InAlN/GaN heterostructures grown under optimal conditions have flat surfaces and abrupt heterointerfaces. Electron mobility from 1200 to 2000 cm 2 /V s was obtained at room temperature. To our knowledge, this mobility is the highest ever reported for InAlN/GaN heterostructures. We also investigated the relationship between the Al composition and sheet electron densit…

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