Jump to main content
Jump to site search

Issue 39, 2013
Previous Article Next Article

A reduced graphene oxide sound-emitting device: a new use for Joule heating

Author affiliations

Abstract

In our living environment, there are a lot of Joule heating sources around such as machines, chips, sunlight, etc. Joule heating has always been considered a useless power except in domestic appliances. Here, we report that Joule heating could be reused by reduced graphene oxide (rGO) to emit sound. Large-area free-standing rGO is demonstrated to emit sound under different radii of curvature. Tunable sound spectrum mappings are obtained by changing the radius of curvature. It was observed that decreasing the curvature radius could provide a better sound directivity. Theoretical simulations suggest that the mechanism is related to the thermoacoustic effect. Due to the excellent characteristics of flexibility and large area, this rGO sound-emitting device will open wide applications in environmental, biomedical and many other fields.

Graphical abstract: A reduced graphene oxide sound-emitting device: a new use for Joule heating

Back to tab navigation

Supplementary files

Publication details

The article was received on 14 Jun 2013, accepted on 23 Jul 2013 and first published on 24 Jul 2013


Article type: Communication
DOI: 10.1039/C3RA42983K
Citation: RSC Adv., 2013,3, 17672-17676
  •   Request permissions

    A reduced graphene oxide sound-emitting device: a new use for Joule heating

    H. Tian, Y. Yang, D. Xie, J. Ge and T. Ren, RSC Adv., 2013, 3, 17672
    DOI: 10.1039/C3RA42983K

Search articles by author

Spotlight

Advertisements