High-temperature stability of suspended single-layer graphene

• Published in: Physica status solidi. PSS-RRL. Rapid research letters Vol. 4; no. 11; pp. 302 - 304
• Main Authors: Kim, Kwanpyo, Regan, William, Geng, Baisong, Alemán, Benjamín, Kessler, B. M., Wang, Feng, Crommie, M. F., Zettl, A.
• Format: Journal Article
• Language: English
• Published: Berlin WILEY-VCH Verlag 01-11-2010; WILEY‐VCH Verlag; Wiley-VCH
• Subjects: Condensed matter: structure, mechanical and thermal properties; Electron microscopes; Exact sciences and technology; Extrapolation; Graphene; high temperature; in situ; Joule heating; Membranes; Nanoparticles; Physics; Stability; Thermal properties of condensed matter; Thermal properties of small particles, nanocrystals, nanotubes; transmission electron microscope; Transmission electron microscopy; CVD; Nanoparticles; Transmission electron microscopy; Graphene; Joule heating; Experimental device; High temperature; Thermal stability; in situ; transmission electron microscope
• ISSN: 1862-6254; 1862-6270; 1862-6270
• DOI: 10.1002/pssr.201000244

We report in situ Joule heating on suspended single‐layer graphene in a transmission electron microscope (TEM). Thermally‐driven degradation of pre‐deposited nanoparticles on the membrane is monitored and used for local temperature estimation. By extrapolating the Joule heating power and temperature relation, we find that the suspended single‐layer graphene has exceptional thermal stability up to at least 2600 K. (© 2010 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
This letter investigates high‐temperature stability of suspended single‐layer graphene via in situ Joule heating in a transmission electron microscope. Thermally‐driven degradation of pre‐deposited Au nanoparticles on the graphene is monitored and used for local temperature estimation. The suspended monolayer graphene has exceptional thermal stability up to at least 2600 K.