Measuring Temperature Gradients over Nanometer Length Scales.
Författare
Summary, in English
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.
Avdelning/ar
Publiceringsår
2009
Språk
Engelska
Sidor
779-783
Publikation/Tidskrift/Serie
Nano Letters
Volym
9
Issue
2
Dokumenttyp
Artikel i tidskrift
Förlag
The American Chemical Society (ACS)
Ämne
- Nano Technology
Status
Published
ISBN/ISSN/Övrigt
- ISSN: 1530-6992