• Medientyp: E-Artikel
  • Titel: Ligand Tuning of Localized Surface Plasmon Resonances in Antimony-Doped Tin Oxide Nanocrystals
  • Beteiligte: Balitskii, Olexiy [Verfasser:in]; Mashkov, Oleksandr [Verfasser:in]; Yarema, Olesya [Verfasser:in]; Yarema, Maksym [Verfasser:in]; Wood, Vanessa [Verfasser:in]; Stifter, David [Verfasser:in]; Heiss, Wolfgang [Verfasser:in]; Barabash, Anastasiia [Verfasser:in]; Rehm, Viktor [Verfasser:in]; Afify, Hany A. [Verfasser:in]; Li, Ning [Verfasser:in]; Hammer, Maria S. [Verfasser:in]; Brabec, Christoph [Verfasser:in]; Eigen, Andreas [Verfasser:in]; Halik, Marcus [Verfasser:in]
  • Erschienen: MDPI, 2022
  • Erschienen in: Nanomaterials 12(19), 3469 - (2022). doi:10.3390/nano12193469
  • Sprache: Englisch
  • DOI: https://doi.org/10.3390/nano12193469
  • ISSN: 2079-4991
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  • Beschreibung: Aliovalent-doped metal oxide nanocrystals exhibiting localized surface plasmons (LSPRs)are applied in systems that require reflection/scattering/absorption in infrared and optical trans-parency in visible. Indium tin oxide (ITO) is currently leading the field, but indium resources areknown to be very restricted. Antimony-doped tin oxide (ATO) is a cheap candidate to substitutethe ITO, but it exhibits less advantageous electronic properties and limited control of the LSPRs.To date, LSPR tuning in ATO NCs has been achieved electrochemically and by aliovalent doping,with a significant decrease in doping efficiency with an increasing doping level. Here, we synthesizeplasmonic ATO nanocrystals (NCs) via a solvothermal route and demonstrate ligand exchange to tunethe LSPR energies. Attachment of ligands acting as Lewis acids and bases results in LSPR peak shiftswith a doping efficiency overcoming those by aliovalent doping. Thus, this strategy is of potentialinterest for plasmon implementations, which are of potential interest for infrared upconversion, smart glazing, heat absorbers, or thermal barriers.
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