Philippe Ben-Abdallah et.al.: Phase-change radiative thermal diode

Author(s): Philippe Ben-Abdallah, Svend-Age Biehs

Title:
Phase-change radiative thermal diode

Date of Upload:
2013-11-07

Article: Appl. Phys. Lett. 103, 191907 (2013), American Institute of Physics

Keywords: thermal diode, phase change material, rectification

Abstract:
A thermal diode transports heat mainly in one preferential direction rather than in the opposite direction. This behavior is generally due to the non-linear dependence of certain physical properties with respect to the temperature. Here we introduce a radiative thermal diode which rectifies heat transport thanks to the phase transitions of materials. Rectification coefficients greater than 70% and up to 90% are shown, even for small temperature differences. This result could have important applications in the development of future contactless thermal circuits or in the conception of radiative coatings for thermal management.

URL: http://www.physik.uni-oldenburg.de/condmat/Biehs/pubs/p_VO2Diode2013.pdf (text/plain)


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