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Free‐Standing Graphene Thermophone on a Polymer‐Mesh Substrate
Author(s) -
Kim Choong Sun,
Hong Seul Ki,
Lee JungMin,
Kang DongSoo,
Cho Byung Jin,
Choi JungWoo
Publication year - 2016
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.201501673
Subject(s) - loudspeaker , materials science , graphene , substrate (aquarium) , sound pressure , thermoacoustics , polymer substrate , acoustics , thin film , polymer , sound (geography) , composite material , nanotechnology , physics , oceanography , geology
A graphene thermoacoustic loudspeaker with a thin polymer mesh is fabricated using screen‐printing. An experiment with substrates of various free‐standing areas shows that a higher sound pressure level can be achieved as compared to previously reported graphene thermoacoustic loudspeakers. Moreover, a modified equation to predict the sound pressure level of the thermoacoustic loudspeaker with a thin and patterned substrate is proposed and verified by experimental results.