Dual-mode solid-state thermal rectification

Article

Abstract

Thermal rectification is an exotic thermal transport phenomenon which allows heat to transfer in one direction but block the other. We demonstrate an unusual dual-mode solid-state thermal rectification effect using a heterogeneous “irradiated-pristine” polyethylene nanofiber junction as a nanoscale thermal diode, in which heat flow can be rectified in both directions by changing the working temperature. For the nanofiber samples measured here, we observe a maximum thermal rectification factor as large as ~50%, which only requires a small temperature bias of <10 K. The tunable nanoscale thermal diodes with large rectification and narrow temperature bias open up new possibilities for developing advanced thermal management, energy conversion and, potentially thermophononic technologies.

Attributes

Attribute NameValues
Creator
  • Ramesh Shrestha

  • Yuxuan Luan

  • Xiao Luo

  • Summi Shi

  • Teng Zhang

  • Phil Smith

  • Wei Gong

  • Michael Bockstaller

  • Tenfei Luo

  • Renkun Chen

  • Kedar Hippalgaonkar

  • Shen Shen

Journal or Work Title
  • Nature Communications

Volume
  • 11

Issue
  • 1

First Page
  • 1

Last Page
  • 7

ISSN
  • 20411723

ISBN
  • 4146702018212

Publication Date
  • 2020-06

Subject
  • Magellan SEM

Publisher
  • Springer

Date Created
  • 2020-11-24

Language
  • English

Departments and Units
Record Visibility Public
Content License
  • All rights reserved

Digital Object Identifier

doi:10.1038/s41467-020-18212-2

This DOI is the best way to cite this article.