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| DOI | Trouver le DOI : https://doi.org/10.1021/acsanm.2c03937 |
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| Auteur | Rechercher : Milliken, Sarah1Identifiant ORCID : https://orcid.org/0000-0001-8709-3454; Rechercher : Cheong, I. Teng1Identifiant ORCID : https://orcid.org/0000-0002-3584-9800; Rechercher : Cui, Kai2; Rechercher : Veinot, Jonathan G. C.1Identifiant ORCID : https://orcid.org/0000-0001-7511-510X |
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| Affiliation | - University of Alberta
- Conseil national de recherches du Canada. Nanotechnologie
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| Bailleur de fonds | Rechercher : University of Alberta; Rechercher : Natural Sciences and Engineering Research Council of Canada; Rechercher : Alberta Innovates |
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| Format | Texte, Article |
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| Sujet | silicon quantum dots; doping; tailoring composition; surface functionalization; photoluminescence; solution processability |
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| Résumé | Doped silicon quantum dots (SiQDs) with defined size, dopant distribution, and surface chemistry are highly sought after as a scientific curiosity because their unique properties offer a wide array of potential applications including multimodal medical imaging and photovoltaic devices. This report describes a diffusion-based postsynthesis doping method for incorporating high concentrations of B (2.5–5.0 at. %) into preformed SiQDs of predefined sizes while simultaneously maintaining their structure and morphology. The processing temperature, atmosphere, and QD size all strongly influence the resulting B-doped SiQDs. The as-synthesized doped SiQDs exhibit size-dependent photoluminescence spanning the visible to near-infrared spectral regions, are compatible with aqueous environments, and are readily rendered compatible with organic solvents upon functionalization with appropriate alkoxide surface groups. Being able to effectively tune the size and surface chemistry of the present B-doped SiQDs make them excellent candidates for use in targeted applications such as multimodal imaging and photovoltaic devices. |
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| Date de publication | 2022-09-22 |
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| Maison d’édition | American Chemical Society |
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| Dans | |
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| Langue | anglais |
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| Publications évaluées par des pairs | Oui |
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| Numéro du CNRC | NRC-NANO-224 |
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| Exporter la notice | Exporter en format RIS |
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| Signaler une correction | Signaler une correction (s'ouvre dans un nouvel onglet) |
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| Identificateur de l’enregistrement | 72865a1f-484f-4b47-812e-25a379541f32 |
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| Enregistrement créé | 2023-02-03 |
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| Enregistrement modifié | 2023-02-03 |
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