In this work, we investigate the thermal and acoustic frequency responses of nanostructured thermoacoustic loudspeakers. An opposite frequency dependence of thermal and acoustic responses was found independently of the device substrate (Kapton and glass) and the nanometric active film (silver nanowires and nm-thick metal films). The experimental results are interpreted with the support of a comprehensive electro-thermo-acoustic model, allowing for the separation of the purely thermal effects from the proper thermoacoustic (TA) transduction. The thermal interactions causing the reported opposite trends are understood, providing useful insights for the further development of the TA loudspeaker technology.

On the frequency response of nanostructured thermoacoustic loudspeakers / La Torraca, P.; Bobinger, M.; Servadio, M.; Pavan, P.; Becherer, M.; Lugli, P.; Larcher, L.. - In: NANOMATERIALS. - ISSN 2079-4991. - 8:10(2018), pp. 833-843. [10.3390/nano8100833]

On the frequency response of nanostructured thermoacoustic loudspeakers

La Torraca P.
;
Pavan P.;Larcher L.
2018-01-01

Abstract

In this work, we investigate the thermal and acoustic frequency responses of nanostructured thermoacoustic loudspeakers. An opposite frequency dependence of thermal and acoustic responses was found independently of the device substrate (Kapton and glass) and the nanometric active film (silver nanowires and nm-thick metal films). The experimental results are interpreted with the support of a comprehensive electro-thermo-acoustic model, allowing for the separation of the purely thermal effects from the proper thermoacoustic (TA) transduction. The thermal interactions causing the reported opposite trends are understood, providing useful insights for the further development of the TA loudspeaker technology.
14-ott-2018
8
10
833
843
On the frequency response of nanostructured thermoacoustic loudspeakers / La Torraca, P.; Bobinger, M.; Servadio, M.; Pavan, P.; Becherer, M.; Lugli, P.; Larcher, L.. - In: NANOMATERIALS. - ISSN 2079-4991. - 8:10(2018), pp. 833-843. [10.3390/nano8100833]
La Torraca, P.; Bobinger, M.; Servadio, M.; Pavan, P.; Becherer, M.; Lugli, P.; Larcher, L.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11380/1207259
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