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Direct nanoscale imaging of ballistic and diffusive thermal transport in graphene nanostructures

Research output: Contribution to conference - Without ISBN/ISSN Conference paperpeer-review

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Direct nanoscale imaging of ballistic and diffusive thermal transport in graphene nanostructures. / Kolosov, O. V.; Pumarol, M. E.; Tovee, P.; Rosamond, M. C.; Petty, M. C.; Zeze, D. A.; Falko, V.

2012. 206-209 Paper presented at Nanotechnology 2012: Advanced Materials, CNTs, Particles, Films and Composites - 2012 NSTI Nanotechnology Conference and Expo, NSTI-Nanotech 2012, Santa Clara, CA, United States.

Research output: Contribution to conference - Without ISBN/ISSN Conference paperpeer-review

Harvard

Kolosov, OV, Pumarol, ME, Tovee, P, Rosamond, MC, Petty, MC, Zeze, DA & Falko, V 2012, 'Direct nanoscale imaging of ballistic and diffusive thermal transport in graphene nanostructures', Paper presented at Nanotechnology 2012: Advanced Materials, CNTs, Particles, Films and Composites - 2012 NSTI Nanotechnology Conference and Expo, NSTI-Nanotech 2012, Santa Clara, CA, United States, 18/06/12 - 21/06/12 pp. 206-209.

APA

Kolosov, O. V., Pumarol, M. E., Tovee, P., Rosamond, M. C., Petty, M. C., Zeze, D. A., & Falko, V. (2012). Direct nanoscale imaging of ballistic and diffusive thermal transport in graphene nanostructures. 206-209. Paper presented at Nanotechnology 2012: Advanced Materials, CNTs, Particles, Films and Composites - 2012 NSTI Nanotechnology Conference and Expo, NSTI-Nanotech 2012, Santa Clara, CA, United States.

Vancouver

Kolosov OV, Pumarol ME, Tovee P, Rosamond MC, Petty MC, Zeze DA et al. Direct nanoscale imaging of ballistic and diffusive thermal transport in graphene nanostructures. 2012. Paper presented at Nanotechnology 2012: Advanced Materials, CNTs, Particles, Films and Composites - 2012 NSTI Nanotechnology Conference and Expo, NSTI-Nanotech 2012, Santa Clara, CA, United States.

Author

Kolosov, O. V. ; Pumarol, M. E. ; Tovee, P. ; Rosamond, M. C. ; Petty, M. C. ; Zeze, D. A. ; Falko, V. / Direct nanoscale imaging of ballistic and diffusive thermal transport in graphene nanostructures. Paper presented at Nanotechnology 2012: Advanced Materials, CNTs, Particles, Films and Composites - 2012 NSTI Nanotechnology Conference and Expo, NSTI-Nanotech 2012, Santa Clara, CA, United States.4 p.

Bibtex

@conference{3fe108430ead4eb4a472c2ac1af4f225,
title = "Direct nanoscale imaging of ballistic and diffusive thermal transport in graphene nanostructures",
abstract = "The list of graphene properties showing potential for nano-electronics applications includes high carrier mobility, superior mechanical strength, and high thermal conductivity [1]. With the mean-free-path (MFP) of thermal phonons at room temperature in graphene on the order of 700 nm and modern semiconductor devices having features on the order of few tens of nm, it is apparent that the ballistic regime must play a significant role in the thermal transport in such nanodevices. Whereas extraordinary thermal properties of graphene suggest it use for heat management, graphene behaviour in such structures is to a great degree unexplored due to lack of suitable methods. Experimentally, so far these phenomena were studied using micro-Raman spectroscopy with lateral resolution inevitably restricted by the optical wavelength to the range of 0.5-1 μm [2,3]. In our study we addressed the challenge of exploration of thermal phenomena in graphene nanostructures by using nanoscale scanning thermal probe [4] in high vacuum (HV) environment (Fig. 1) that allowed us to directly map thermal transport in suspended and supported graphene layers with nanoscale resolution, and to explore both ballistic and diffusive regimes of heat transfer.",
keywords = "Graphene, Heat transport, Scanning thermal microscopy, SPM, SThM",
author = "Kolosov, {O. V.} and Pumarol, {M. E.} and P. Tovee and Rosamond, {M. C.} and Petty, {M. C.} and Zeze, {D. A.} and V. Falko",
year = "2012",
month = aug,
day = "20",
language = "English",
pages = "206--209",
note = "Nanotechnology 2012: Advanced Materials, CNTs, Particles, Films and Composites - 2012 NSTI Nanotechnology Conference and Expo, NSTI-Nanotech 2012 ; Conference date: 18-06-2012 Through 21-06-2012",

}

RIS

TY - CONF

T1 - Direct nanoscale imaging of ballistic and diffusive thermal transport in graphene nanostructures

AU - Kolosov, O. V.

AU - Pumarol, M. E.

AU - Tovee, P.

AU - Rosamond, M. C.

AU - Petty, M. C.

AU - Zeze, D. A.

AU - Falko, V.

PY - 2012/8/20

Y1 - 2012/8/20

N2 - The list of graphene properties showing potential for nano-electronics applications includes high carrier mobility, superior mechanical strength, and high thermal conductivity [1]. With the mean-free-path (MFP) of thermal phonons at room temperature in graphene on the order of 700 nm and modern semiconductor devices having features on the order of few tens of nm, it is apparent that the ballistic regime must play a significant role in the thermal transport in such nanodevices. Whereas extraordinary thermal properties of graphene suggest it use for heat management, graphene behaviour in such structures is to a great degree unexplored due to lack of suitable methods. Experimentally, so far these phenomena were studied using micro-Raman spectroscopy with lateral resolution inevitably restricted by the optical wavelength to the range of 0.5-1 μm [2,3]. In our study we addressed the challenge of exploration of thermal phenomena in graphene nanostructures by using nanoscale scanning thermal probe [4] in high vacuum (HV) environment (Fig. 1) that allowed us to directly map thermal transport in suspended and supported graphene layers with nanoscale resolution, and to explore both ballistic and diffusive regimes of heat transfer.

AB - The list of graphene properties showing potential for nano-electronics applications includes high carrier mobility, superior mechanical strength, and high thermal conductivity [1]. With the mean-free-path (MFP) of thermal phonons at room temperature in graphene on the order of 700 nm and modern semiconductor devices having features on the order of few tens of nm, it is apparent that the ballistic regime must play a significant role in the thermal transport in such nanodevices. Whereas extraordinary thermal properties of graphene suggest it use for heat management, graphene behaviour in such structures is to a great degree unexplored due to lack of suitable methods. Experimentally, so far these phenomena were studied using micro-Raman spectroscopy with lateral resolution inevitably restricted by the optical wavelength to the range of 0.5-1 μm [2,3]. In our study we addressed the challenge of exploration of thermal phenomena in graphene nanostructures by using nanoscale scanning thermal probe [4] in high vacuum (HV) environment (Fig. 1) that allowed us to directly map thermal transport in suspended and supported graphene layers with nanoscale resolution, and to explore both ballistic and diffusive regimes of heat transfer.

KW - Graphene

KW - Heat transport

KW - Scanning thermal microscopy

KW - SPM

KW - SThM

M3 - Conference paper

AN - SCOPUS:84864984650

SP - 206

EP - 209

T2 - Nanotechnology 2012: Advanced Materials, CNTs, Particles, Films and Composites - 2012 NSTI Nanotechnology Conference and Expo, NSTI-Nanotech 2012

Y2 - 18 June 2012 through 21 June 2012

ER -