Hybrid silicon nanostructures with conductive ligands and their microscopic conductivities

Tiezheng Bian, Jamie N. Peck, Stephen P. Cottrell, Upali A. Jayasooriya, Yimin Chao

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Abstract

Silicon nanoparticles (SiNPs) functionalized with conjugated molecules promise a potential pathway to generate a new category of thermoelectric materials. While the thermoelectric performance of materials based on phenyl-acetylene capped SiNPs has been proven, their low conductivity is still a problem for their general application. A muon study of phenyl-acetylene capped SiNPs has been recently carried out using the HiFi spectrometer at the Rutherford Appleton Laboratory, measuring the ALC spectra as a function of temperature. The results show a reduction in the measured line width of the resonance above room temperature, suggesting an activated behaviour for this system. This study shows that the muon study could be a powerful method to investigate microscopic conductivity of hybrid thermoelectric materials.
Original languageEnglish
Pages (from-to)3221–3226
JournalJournal of Electronic Materials
Volume46
Issue number5
Early online date23 Sep 2016
DOIs
Publication statusPublished - May 2017

Keywords

  • Silicon nanostructure
  • Muon spectroscopy
  • hybrid materials
  • Phenylacetylene
  • thermoelectric performance
  • microscopic conductivity

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