High-resolution spatial mapping of the temperature distribution of a Joule self-heated graphene nanoribbon
Open Access
- 31 October 2011
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 99 (18), 183105
- https://doi.org/10.1063/1.3657515
Abstract
We investigate the temperature distributions of Joule self-heated graphene nanoribbons (GNRs) with a spatial resolution finer than 100 nm by scanning thermal microscopy (SThM). The SThM probe is calibrated using the Raman G mode Stokes/anti-Stokes intensity ratio as a function of electric power applied to the GNR devices. From a spatial map of the temperature distribution, heat dissipation and transport pathways are investigated. By combining SThM and scanning gate microscopy data from a defected GNR, we observe hot spot formation at well-defined, localized sites.Keywords
Other Versions
This publication has 19 references indexed in Scilit:
- Imaging, Simulation, and Electrostatic Control of Power Dissipation in Graphene DevicesNano Letters, 2010
- Thermal infrared emission from biased grapheneNature Nanotechnology, 2010
- Hot Phonons in an Electrically Biased Graphene ConstrictionNano Letters, 2009
- Thermal probing of energy dissipation in current-carrying carbon nanotubesJournal of Applied Physics, 2009
- Energy Dissipation in Graphene Field-Effect TransistorsNano Letters, 2009
- Superior Thermal Conductivity of Single-Layer GrapheneNano Letters, 2008
- Design and batch fabrication of probes for sub-100 nm scanning thermal microscopyJournal of Microelectromechanical Systems, 2001
- Scanning thermal microscopy using batch fabricated thermocouple probesApplied Physics Letters, 1998
- Micromachined fabrication of Si cantilevers with Schottky diodes integrated in the tipApplied Physics A, 1998
- Thermal imaging using the atomic force microscopeApplied Physics Letters, 1993