Measuring Temperature Gradients over Nanometer Length Scales.
(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:
https://lup.lub.lu.se/record/1289401
- author
- Hoffmann, Eric A ; Nilsson, Henrik LU ; Matthews, Jason E ; Nakpathomkun, Natthapon ; Persson, Ann LU ; Samuelson, Lars LU and Linke, Heiner
- organization
- publishing date
- 2009
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Nano Letters
- volume
- 9
- issue
- 2
- pages
- 779 - 783
- publisher
- The American Chemical Society (ACS)
- external identifiers
-
- wos:000263298700047
- pmid:19159269
- scopus:65249156465
- pmid:19159269
- 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
- 2016-04-01 13:07:46
- date last changed
- 2022-03-29 05:45:17
@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 (ACS)}}, series = {{Nano Letters}}, title = {{Measuring Temperature Gradients over Nanometer Length Scales.}}, url = {{http://dx.doi.org/10.1021/nl8034042}}, doi = {{10.1021/nl8034042}}, volume = {{9}}, year = {{2009}}, }