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Direct Correlation between Structural and Optical Properties of III−V Nitride Nanowire Heterostructures with Nanoscale Resolution (CROSBI ID 161606)

Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija

Lim K., Sung ; Brewster, Megan ; Qian, Fang ; Li, Yat ; Lieber M., Charles ; Gradečak, Silvija Direct Correlation between Structural and Optical Properties of III−V Nitride Nanowire Heterostructures with Nanoscale Resolution // Nano letters, 9 (2009), 11; 3940-3944. doi: 10.1021/nl9025743

Podaci o odgovornosti

Lim K., Sung ; Brewster, Megan ; Qian, Fang ; Li, Yat ; Lieber M., Charles ; Gradečak, Silvija

engleski

Direct Correlation between Structural and Optical Properties of III−V Nitride Nanowire Heterostructures with Nanoscale Resolution

Direct correlation of structural and optical properties on the nanoscale is essential for rational synthesis of nanomaterials with predefined structure and functionality. We study optical properties of single III−V nitride nanowire radial heterostructures with measured spatial resolution of <20 nm using cathodoluminescence (CL) technique coupled with scanning transmission electron microscopy (STEM). Enhanced carrier recombination in nanowire quantum wells and reduced light emission from regions containing structural defects were directly observed. Using newly developed parallel-detection-mode CL-STEM, we show that optical properties can vary within a single nanowire heterostructure as a function of nanowire morphology.

nanowire ; heterostructures ; STEM

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Podaci o izdanju

9 (11)

2009.

3940-3944

objavljeno

1530-6984

10.1021/nl9025743

Povezanost rada

Fizika

Poveznice
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