We report on the superior performance of laser-induced graphene (LIG) film thermoacoustic (TA) loudspeakers. LIG films are fabricated by laser-ablation of polyimide foil and contacted by screen-printing of silver paste, allowing for a facile, ambient condition fabrication process. The LIG film TA loudspeakers achieve up to 50 dB SPL at 1m distance, showing a 10 dB higher efficiency with respect to the nanostructured TA loudspeakers with polyimide substrate reported in literature.
Acoustic characterization of laser-induced graphene film thermoacoustic loudspeakers / Torraca, P. L.; Larcher, L.; Lugli, P.; Bobinger, M.; Romero, F. J.; Rivadeneyra, A.; Ricci, Y.; Cattani, L.; Morales, D. P.; Rodriguez, N.; Salinas-Castillo, A.. - In: PROCEEDINGS OF THE ... IEEE CONFERENCE ON NANOTECHNOLOGY. - ISSN 1944-9399. - 2019-:(2019), pp. 5-8. (Intervento presentato al convegno 19th IEEE International Conference on Nanotechnology, NANO 2019 tenutosi a The Parisian Macao, Estrada do Istmo, Lote 3, Cotai Strip, chn nel 2019) [10.1109/NANO46743.2019.8993681].
Acoustic characterization of laser-induced graphene film thermoacoustic loudspeakers
Larcher L.;Ricci Y.;Cattani L.;
2019
Abstract
We report on the superior performance of laser-induced graphene (LIG) film thermoacoustic (TA) loudspeakers. LIG films are fabricated by laser-ablation of polyimide foil and contacted by screen-printing of silver paste, allowing for a facile, ambient condition fabrication process. The LIG film TA loudspeakers achieve up to 50 dB SPL at 1m distance, showing a 10 dB higher efficiency with respect to the nanostructured TA loudspeakers with polyimide substrate reported in literature.
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