Planar jumping-drop thermal diodes


Journal Article

Phase-change thermal diodes rectify heat transport much more effectively than solid-state ones, but are limited by either the gravitational orientation or one-dimensional configuration. Here, we report a planar phase-change diode scalable to large areas with an orientation-independent diodicity of over 100, in which water/vapor is enclosed by parallel superhydrophobic and superhydrophilic plates. The thermal rectification is enabled by spontaneously jumping dropwise condensate which only occurs when the superhydrophobic surface is colder than the superhydrophilic surface. © 2011 American Institute of Physics.

Full Text

Duke Authors

Cited Authors

  • Boreyko, JB; Zhao, Y; Chen, CH

Published Date

  • December 5, 2011

Published In

Volume / Issue

  • 99 / 23

International Standard Serial Number (ISSN)

  • 0003-6951

Digital Object Identifier (DOI)

  • 10.1063/1.3666818

Citation Source

  • Scopus