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Using Polymer Electrolyte Gates to Set-and-Freeze Threshold Voltage and Local Potential in Nanowire-based Devices and Thermoelectrics

Fahlvik Svensson, Sofia LU ; Burke, Adam M.; Carrad, Damon J.; Leijnse, Martin LU ; Linke, Heiner LU and Micolich, Adam P. (2015) In Advanced Functional Materials 25(2). p.255-262
Abstract
The strongly temperature-dependent ionic mobility in polymer electrolytes is used to freeze in specific ionic charge environments around a nanowire using a local wrap-gate geometry. This makes it possible to set both the threshold voltage for a conventional doped substrate gate and the local disorder potential at temperatures below 220 K. These are characterized in detail by combining conductance and thermovoltage measurements with modeling. The results demonstrate that local polymer electrolyte gates are compatible with nanowire thermoelectrics, where they offer the advantage of a very low thermal conductivity, and hold great potential towards setting the optimal operating point for solid-state cooling applications.
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
nanowires, polymer electrolytes, thermoelectrics, quantum dots
in
Advanced Functional Materials
volume
25
issue
2
pages
255 - 262
publisher
Wiley-VCH
external identifiers
  • wos:000347790600011
  • scopus:84961291123
ISSN
1616-3028
DOI
10.1002/adfm.201402921
language
English
LU publication?
yes
id
8086df15-8730-4c2c-9aa4-fc93ef0f8cae (old id 5069147)
date added to LUP
2015-02-25 14:08:05
date last changed
2017-09-28 13:30:04
@article{8086df15-8730-4c2c-9aa4-fc93ef0f8cae,
  abstract     = {The strongly temperature-dependent ionic mobility in polymer electrolytes is used to freeze in specific ionic charge environments around a nanowire using a local wrap-gate geometry. This makes it possible to set both the threshold voltage for a conventional doped substrate gate and the local disorder potential at temperatures below 220 K. These are characterized in detail by combining conductance and thermovoltage measurements with modeling. The results demonstrate that local polymer electrolyte gates are compatible with nanowire thermoelectrics, where they offer the advantage of a very low thermal conductivity, and hold great potential towards setting the optimal operating point for solid-state cooling applications.},
  author       = {Fahlvik Svensson, Sofia and Burke, Adam M. and Carrad, Damon J. and Leijnse, Martin and Linke, Heiner and Micolich, Adam P.},
  issn         = {1616-3028},
  keyword      = {nanowires,polymer electrolytes,thermoelectrics,quantum dots},
  language     = {eng},
  number       = {2},
  pages        = {255--262},
  publisher    = {Wiley-VCH },
  series       = {Advanced Functional Materials},
  title        = {Using Polymer Electrolyte Gates to Set-and-Freeze Threshold Voltage and Local Potential in Nanowire-based Devices and Thermoelectrics},
  url          = {http://dx.doi.org/10.1002/adfm.201402921},
  volume       = {25},
  year         = {2015},
}