A novel thermal acoustic device based on porous graphene
Author(s) -
LuQi Tao,
Ying Liu,
He Tian,
ZhenYi Ju,
QianYi Xie,
Yi Yang,
TianLing Ren
Publication year - 2016
Publication title -
aip advances
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.421
H-Index - 58
ISSN - 2158-3226
DOI - 10.1063/1.4939935
Subject(s) - polyimide , materials science , laser , flexibility (engineering) , graphene , optoelectronics , thermal , electronics , porosity , sound power , acoustics , optics , nanotechnology , composite material , layer (electronics) , electrical engineering , sound (geography) , statistics , physics , mathematics , engineering , meteorology
A thermal acoustic (TA) device was fabricated by laser scribing technology. Polyimide (PI) can be converted into patterned porous graphene (PG) by laser’s irradiation in one step. The sound pressure level (SPL) of such TA device is related to laser power. The theoretical model of TA effect was established to analyze the relationship between the SPL and laser power. The theoretical results are in good agreement with experiment results. It was found that PG has a flat frequency response in the range of 5-20 kHz. This novel TA device has the advantages of one-step procedure, high flexibility, no mechanical vibration, low cost and so on. It can open wide applications in speakers, multimedia, medical, earphones, consumer electronics and many other aspects
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