Low-voltage Driven Graphene Foam Thermoacoustic Speaker

Wenwen Fei; Jianxin Zhou; Wanlin Guo

doi:10.1002/smll.201402982

Low-voltage Driven Graphene Foam Thermoacoustic Speaker

Small. 2015 May 20;11(19):2252-6. doi: 10.1002/smll.201402982. Epub 2014 Dec 15.

Authors

Wenwen Fei¹, Jianxin Zhou¹, Wanlin Guo¹

Affiliation

¹ State Key Laboratory of Mechanics and Control of Mechanical Structures, Key Laboratory for Intelligent Nano Materials and Devices of the MOE, Institute of Nano Science, Nanjing University of Aeronautics and Astronautics, Nanjing, 210016, China.

PMID: 25510730
DOI: 10.1002/smll.201402982

Abstract

A low-voltage driven thermoacoustic speaker is fabricated based on three-dimensional graphene foams synthesized by a nickel-template assisted chemical vapor deposition method. The corresponding thermoacoustic performances are found to be related to its microstructure. Graphene foams exhibit low heat-leakage to substrates and feasible tunability in structures and thermoacoustic performances, having great promise for applications in flexible or ultrasonic acoustic devices.

Keywords: graphene foams; low-voltage driven; microstructures; thermoacoustic speakers.

Publication types

Research Support, Non-U.S. Gov't