Fabrication of star-shaped InP/GaInAs core-multishell nanowires by self-catalytic VLS mode
| Autor: | Kazuhiko Shimomura, Satoshi Yoshimura, Katsuaki Ishida, Kohei Takano |
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| Rok vydání: | 2019 |
| Předmět: |
010302 applied physics
Materials science Photoluminescence Fabrication business.industry Nanowire 02 engineering and technology 021001 nanoscience & nanotechnology Condensed Matter Physics Epitaxy 01 natural sciences Inorganic Chemistry Core (optical fiber) Phase (matter) 0103 physical sciences Materials Chemistry Optoelectronics Metalorganic vapour phase epitaxy 0210 nano-technology business Spectroscopy |
| Zdroj: | Journal of Crystal Growth. 509:66-70 |
| ISSN: | 0022-0248 |
| DOI: | 10.1016/j.jcrysgro.2018.12.015 |
| Popis: | We successfully fabricated core-multishell nanowires using low-pressure metal organic vapor phase epitaxy (MOVPE) in self-catalytic vapor-liquid-solid (VLS) mode. The central core consists of an InP nanowire, and the shells are composed of alternating InP and GaInAs layers. The dependence of the shape and optical characteristics of the nanowires on the number of InP/GaInAs periods were investigated. By increasing the shell-periods, we observed a star-shaped cross section. The optical characteristics of the nanowires were investigated by room-temperature photoluminescence (PL) spectroscopy. The number of PL peaks was found to increase with increasing number of periods, and the peaks became redshifted. |
| Databáze: | OpenAIRE |
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