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- W2014857342 abstract "The spatial distribution of defect-related and band-edge luminescence from GaN nanowires grown by metal-organic chemical vapor deposition was studied by spatially resolved cathodoluminescence imaging and spectroscopy. A surface layer exhibiting strong yellow luminescence (YL) near 566 nm in the nanowires was revealed, compared to weak YL in the bulk. In contrast, other defect-related luminescence near 428 nm (blue luminescence) and 734 nm (red luminescence), in addition to band-edge luminescence (BEL) at 366 nm, were observed in the bulk of the nanowires but were largely absent at the surface. As the nanowire width approaches a critical dimension, the surface YL layer completely quenches the BEL. The surface YL is attributed to the diffusion and piling up of mobile point defects, likely isolated gallium vacancies, at the surface during growth." @default.
- W2014857342 created "2016-06-24" @default.
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- W2014857342 date "2010-04-14" @default.
- W2014857342 modified "2023-09-25" @default.
- W2014857342 title "Spatial Distribution of Defect Luminescence in GaN Nanowires" @default.
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- W2014857342 doi "https://doi.org/10.1021/nl903517t" @default.
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