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Low‐voltage Driven Graphene Foam Thermoacoustic Speaker
Author(s) -
Fei Wenwen,
Zhou Jianxin,
Guo Wanlin
Publication year - 2015
Publication title -
small
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.785
H-Index - 236
eISSN - 1613-6829
pISSN - 1613-6810
DOI - 10.1002/smll.201402982
Subject(s) - materials science , graphene , thermoacoustics , graphene foam , thermoacoustic heat engine , ultrasonic sensor , voltage , leakage (economics) , microstructure , chemical vapor deposition , composite material , optoelectronics , acoustics , nanotechnology , mechanical engineering , refrigerator car , graphene nanoribbons , electrical engineering , physics , engineering , economics , macroeconomics
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.