Hybrid silicon nanostructures with conductive ligands and their microscopic conductivities

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

doi:10.1007/s11664-016-4954-y

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 language	English
Pages (from-to)	3221–3226
Number of pages	6
Journal	Journal of Electronic Materials
Volume	46
Issue number	5
Early online date	23 Sep 2016
DOIs	https://doi.org/10.1007/s11664-016-4954-y
Publication status	Published - May 2017

Keywords

Silicon nanostructure
Muon spectroscopy
hybrid materials
Phenylacetylene
thermoelectric performance
microscopic conductivity

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10.1007/s11664-016-4954-yLicence: CC BY

Published manuscript
This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.
Final published version, 773 KBLicence: CC BY

Cite this

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title = "Hybrid silicon nanostructures with conductive ligands and their microscopic conductivities",

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.",

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