Descripción
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Here we report on the study of nano-crack formation in Al1?xInxN/AlN/GaN heterostructures, on its association with composition fluctuation and on its local electrical properties. It is shown here that indium segregation at nano-cracks and threading dislocations originating from the non-pseudomorphic AlN interlayer could be the cause of the high reverse-bias gate leakage current of Ni/Au Schottky contacts on Al1?xInxN/AlN/GaN heterostructures and significantly affects the contact rectifying behavior. Segregation of indium around crack tips in Al1?xInxN acting as conductive paths was assessed with conductive atomic force microscopy. | |
Internacional
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JCR del ISI
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Título de la revista
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Scripta Materialia |
ISSN
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1359-6462 |
Factor de impacto JCR
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2,699 |
Información de impacto
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Datos JCR del año 2011 |
Volumen
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66 |
DOI
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Número de revista
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Desde la página
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327 |
Hasta la página
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330 |
Mes
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SIN MES |
Ranking
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