title: Free-Standing Graphene Thermophone on a Polymer-Mesh Substrate.
abstract: 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.
authors.affiliation: Department of Electrical Engineering, Korea Advanced Institute of Science and Technology, Daejeon, 305-701, South Korea.
authors.forename: Choong Sun
authors.initials: CS
authors.lastname: Kim
authors.affiliation: Department of Electrical Engineering, Korea Advanced Institute of Science and Technology, Daejeon, 305-701, South Korea.
authors.forename: Seul Ki
authors.initials: SK
authors.lastname: Hong
authors.affiliation: Department of Mechanical Engineering, Korea Advanced Institute of Science and Technology, Daejeon, 305-701, South Korea.
authors.forename: Jung-Min
authors.initials: JM
authors.lastname: Lee
authors.affiliation: Department of Mechanical Engineering, Korea Advanced Institute of Science and Technology, Daejeon, 305-701, South Korea.
authors.forename: Dong-Soo
authors.initials: DS
authors.lastname: Kang
authors.affiliation: Department of Electrical Engineering, Korea Advanced Institute of Science and Technology, Daejeon, 305-701, South Korea.
authors.forename: Byung Jin
authors.initials: BJ
authors.lastname: Cho
authors.affiliation: Department of Electrical Engineering, Korea Advanced Institute of Science and Technology, Daejeon, 305-701, South Korea.
authors.forename: Jung-Woo
authors.initials: JW
authors.lastname: Choi
keywords: frequency responses; graphene; meshes; screen printing; thermoacoustic effects