Large-Scale Manufacturing of Functionally-Encoded Semiconductor Nanowires for Electronics and Photonics
Semiconductor nanowires can be produced with exquisite spatial control of composition and morphology using the vapor-liquid-solid (VLS) mechanism. This capability has permitted, for example, demonstrations of transistors, photodetectors, solar cells, and biosensors. Central to our process is the use...
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Veröffentlicht in: | Meeting abstracts (Electrochemical Society) 2019-09, Vol.MA2019-02 (30), p.1302-1302 |
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Hauptverfasser: | , , , , , |
Format: | Artikel |
Sprache: | eng |
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Zusammenfassung: | Semiconductor nanowires can be produced with exquisite spatial control of composition and morphology using the vapor-liquid-solid (VLS) mechanism. This capability has permitted, for example, demonstrations of transistors, photodetectors, solar cells, and biosensors. Central to our process is the use of sacrificial, porous-walled, seed particle-lined silica microcapsules, whose interior surface serves as a high-surface area growth substrate. These microcapsules protect the growing nanostructures, are produced with a scalable emulsion templating technique, and are compatible with large-scale chemical reactors. We will show how microcapsule structure and drying is influenced by silica nanoparticle type and concentration, emulsification parameters, and nanoparticle cross-linking agent. We will also demonstrate the synthesis of Si nanowires with axially-programmed dopant profiles on the microcapsule interior. |
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ISSN: | 2151-2043 2151-2035 |
DOI: | 10.1149/MA2019-02/30/1302 |