Advanced

Measuring Temperature Gradients over Nanometer Length Scales.

Hoffmann, Eric A; Nilsson, Henrik LU ; Matthews, Jason E; Nakpathomkun, Natthapon; Persson, Ann LU ; Samuelson, Lars LU and Linke, Heiner (2009) In Nano Letters 9(2). p.779-783
Abstract
When a quantum dot is subjected to a thermal gradient, the temperature of electrons entering the dot can be determined from the dot's thermocurrent if the conductance spectrum and background temperature are known. We demonstrate this technique by measuring the temperature difference across a 15 nm quantum dot embedded in a nanowire. This technique can be used when the dot's energy states are separated by many kT and will enable future quantitative investigations of electron-phonon interaction, nonlinear thermoelectric effects, and the efficiency of thermoelectric energy conversion in quantum dots.
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Nano Letters
volume
9
issue
2
pages
779 - 783
publisher
The American Chemical Society
external identifiers
  • wos:000263298700047
  • pmid:19159269
  • scopus:65249156465
ISSN
1530-6992
DOI
10.1021/nl8034042
language
English
LU publication?
yes
id
4fb34619-1211-40dc-8c8c-4c14e7ffc1a3 (old id 1289401)
date added to LUP
2009-02-06 16:37:47
date last changed
2017-11-05 03:53:10
@article{4fb34619-1211-40dc-8c8c-4c14e7ffc1a3,
  abstract     = {When a quantum dot is subjected to a thermal gradient, the temperature of electrons entering the dot can be determined from the dot's thermocurrent if the conductance spectrum and background temperature are known. We demonstrate this technique by measuring the temperature difference across a 15 nm quantum dot embedded in a nanowire. This technique can be used when the dot's energy states are separated by many kT and will enable future quantitative investigations of electron-phonon interaction, nonlinear thermoelectric effects, and the efficiency of thermoelectric energy conversion in quantum dots.},
  author       = {Hoffmann, Eric A and Nilsson, Henrik and Matthews, Jason E and Nakpathomkun, Natthapon and Persson, Ann and Samuelson, Lars and Linke, Heiner},
  issn         = {1530-6992},
  language     = {eng},
  number       = {2},
  pages        = {779--783},
  publisher    = {The American Chemical Society},
  series       = {Nano Letters},
  title        = {Measuring Temperature Gradients over Nanometer Length Scales.},
  url          = {http://dx.doi.org/10.1021/nl8034042},
  volume       = {9},
  year         = {2009},
}