skip to main content
DOE Patents title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Tunable thermal link

Abstract

Disclosed is a device whereby the thermal conductance of a multiwalled nanostructure such as a multiwalled carbon nanotube (MWCNT) can be controllably and reversibly tuned by sliding one or more outer shells with respect to the inner core. As one example, the thermal conductance of an MWCNT dropped to 15% of the original value after extending the length of the MWCNT by 190 nm. The thermal conductivity returned when the tube was contracted. The device may comprise numbers of multiwalled nanotubes or other graphitic layers connected to a heat source and a heat drain and various means for tuning the overall thermal conductance for applications in structure heat management, heat flow in nanoscale or microscale devices and thermal logic devices.

Inventors:
; ;
Issue Date:
Research Org.:
University of California, Oakland, CA (USA)
Sponsoring Org.:
USDOE
OSTI Identifier:
1144977
Patent Number(s):
8,776,870
Application Number:
12/436,253
Assignee:
The Regents of the University of California (Oakland, CA)
DOE Contract Number:  
AC02-05CH11231
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
77 NANOSCIENCE AND NANOTECHNOLOGY

Citation Formats

Chang, Chih-Wei, Majumdar, Arunava, and Zettl, Alexander K. Tunable thermal link. United States: N. p., 2014. Web.
Chang, Chih-Wei, Majumdar, Arunava, & Zettl, Alexander K. Tunable thermal link. United States.
Chang, Chih-Wei, Majumdar, Arunava, and Zettl, Alexander K. Tue . "Tunable thermal link". United States. https://www.osti.gov/servlets/purl/1144977.
@article{osti_1144977,
title = {Tunable thermal link},
author = {Chang, Chih-Wei and Majumdar, Arunava and Zettl, Alexander K.},
abstractNote = {Disclosed is a device whereby the thermal conductance of a multiwalled nanostructure such as a multiwalled carbon nanotube (MWCNT) can be controllably and reversibly tuned by sliding one or more outer shells with respect to the inner core. As one example, the thermal conductance of an MWCNT dropped to 15% of the original value after extending the length of the MWCNT by 190 nm. The thermal conductivity returned when the tube was contracted. The device may comprise numbers of multiwalled nanotubes or other graphitic layers connected to a heat source and a heat drain and various means for tuning the overall thermal conductance for applications in structure heat management, heat flow in nanoscale or microscale devices and thermal logic devices.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2014},
month = {7}
}

Patent:

Save / Share:

Works referenced in this record:

Solid-State Thermal Rectifier
journal, November 2006


Tunable Nanoresonators Constructed from Telescoping Nanotubes
journal, May 2006


Thermal Transport Measurements of Individual Multiwalled Nanotubes
journal, October 2001


Negative differential thermal resistance and thermal transistor
journal, April 2006

  • Li, Baowen; Wang, Lei; Casati, Giulio
  • Applied Physics Letters, Vol. 88, Issue 14
  • DOI: 10.1063/1.2191730

Precision cutting of nanotubes with a low-energy electron beam
journal, January 2005

  • Yuzvinsky, T. D.; Fennimore, A. M.; Mickelson, W.
  • Applied Physics Letters, Vol. 86, Issue 5
  • DOI: 10.1063/1.1857081

Tunable thermal links
journal, May 2007

  • Chang, C. W.; Okawa, D.; Garcia, H.
  • Applied Physics Letters, Vol. 90, Issue 19
  • DOI: 10.1063/1.2738187