Direct observation of resistive heating at graphene wrinkles and grain boundaries

Kyle L. Grosse, Vincent E. Dorgan, David Estrada, Joshua D. Wood, Ivan Vlassiouk, Gyula Eres, Joseph W. Lyding, William P. King, Eric Pop

Research output: Contribution to journalArticle

Abstract

We directly measure the nanometer-scale temperature rise at wrinkles and grain boundaries (GBs) in functioning graphene devices by scanning Joule expansion microscopy with ∼50 nm spatial and ∼0.2 K temperature resolution. We observe a small temperature increase at select wrinkles and a large (∼100 K) temperature increase at GBs between coalesced hexagonal grains. Comparisons of measurements with device simulations estimate the GB resistivity (8-150 Ω μm) among the lowest reported for graphene grown by chemical vapor deposition. An analytical model is developed, showing that GBs can experience highly localized resistive heating and temperature rise, most likely affecting the reliability of graphene devices. Our studies provide an unprecedented view of thermal effects surrounding nanoscale defects in nanomaterials such as graphene.

Original languageEnglish (US)
Article number143109
JournalApplied Physics Letters
Volume105
Issue number14
DOIs
StatePublished - Oct 6 2014

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graphene
grain boundaries
heating
temperature scales
temperature
temperature effects
vapor deposition
microscopy
electrical resistivity
expansion
scanning
defects
estimates
simulation

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Cite this

Grosse, K. L., Dorgan, V. E., Estrada, D., Wood, J. D., Vlassiouk, I., Eres, G., ... Pop, E. (2014). Direct observation of resistive heating at graphene wrinkles and grain boundaries. Applied Physics Letters, 105(14), [143109]. https://doi.org/10.1063/1.4896676

Direct observation of resistive heating at graphene wrinkles and grain boundaries. / Grosse, Kyle L.; Dorgan, Vincent E.; Estrada, David; Wood, Joshua D.; Vlassiouk, Ivan; Eres, Gyula; Lyding, Joseph W.; King, William P.; Pop, Eric.

In: Applied Physics Letters, Vol. 105, No. 14, 143109, 06.10.2014.

Research output: Contribution to journalArticle

Grosse, KL, Dorgan, VE, Estrada, D, Wood, JD, Vlassiouk, I, Eres, G, Lyding, JW, King, WP & Pop, E 2014, 'Direct observation of resistive heating at graphene wrinkles and grain boundaries', Applied Physics Letters, vol. 105, no. 14, 143109. https://doi.org/10.1063/1.4896676
Grosse KL, Dorgan VE, Estrada D, Wood JD, Vlassiouk I, Eres G et al. Direct observation of resistive heating at graphene wrinkles and grain boundaries. Applied Physics Letters. 2014 Oct 6;105(14). 143109. https://doi.org/10.1063/1.4896676
Grosse, Kyle L. ; Dorgan, Vincent E. ; Estrada, David ; Wood, Joshua D. ; Vlassiouk, Ivan ; Eres, Gyula ; Lyding, Joseph W. ; King, William P. ; Pop, Eric. / Direct observation of resistive heating at graphene wrinkles and grain boundaries. In: Applied Physics Letters. 2014 ; Vol. 105, No. 14.
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