Plasmonic Metal Oxide Nanocrystals via Surface Anchoring of Redox-Active Phosphorus Species
We demonstrate a general and simple postsynthetic method for the generation of plasmonic oxide nanocrystals via surface anchoring of redox-active phosphorus species. The processes are initiated by the reaction between tris(trimethylsilyl)phosphine and the surface hydroxyl groups, resulting in surf...
Gespeichert in:
Veröffentlicht in: | Chemistry of materials 2021-07, Vol.33 (13), p.5290-5297 |
---|---|
Hauptverfasser: | , , , , , , , |
Format: | Artikel |
Sprache: | eng |
Online-Zugang: | Volltext |
Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
Zusammenfassung: | We demonstrate a general and simple postsynthetic method for the generation of plasmonic oxide nanocrystals via surface anchoring of redox-active phosphorus species. The processes are initiated by the reaction between tris(trimethylsilyl)phosphine and the surface hydroxyl groups, resulting in surface-anchored redox-active phosphorus species. The following redox reactions generate free electrons in oxide nanocrystals, accompanied by the valance-state changes of the surface-anchored P from −III to +V. The resulting nanocrystals show tunable plasmon resonance peaks in the near-infrared or mid-infrared regime. The postsynthetic redox chemistry demonstrated in this work shall inspire new design of methodologies for the development of plasmonic oxide nanocrystals. |
---|---|
ISSN: | 0897-4756 1520-5002 |
DOI: | 10.1021/acs.chemmater.1c01393 |