Fabrication and Characterization of a Thermophone Based on Laser-Scribed Graphene Intercalated with Multiwalled Carbon Nanotubes

The low sound pressure level and high operating voltages of thermophones have limited their applications in the past. However, in recent years, utilizing nanomaterials in thermophones has improved their efficiency and applicability. Nanomaterials, especially carbon nanotubes and graphene, have the a...

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Autores principales:	Moin Rabbani, Aashir Waheed Syed, Syed Khalid, Mohammad Ali Mohammad
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	thermophones thermoacoustic graphene oxide laser-scribed graphene multiwalled carbon nanotubes pulse width modulation Chemistry QD1-999
Acceso en línea:	https://doaj.org/article/bb067d8f7eec41a48a9f2db9a3fb534c
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spelling	oai:doaj.org-article:bb067d8f7eec41a48a9f2db9a3fb534c2021-11-25T18:30:31ZFabrication and Characterization of a Thermophone Based on Laser-Scribed Graphene Intercalated with Multiwalled Carbon Nanotubes10.3390/nano111128742079-4991https://doaj.org/article/bb067d8f7eec41a48a9f2db9a3fb534c2021-10-01T00:00:00Zhttps://www.mdpi.com/2079-4991/11/11/2874https://doaj.org/toc/2079-4991The low sound pressure level and high operating voltages of thermophones have limited their applications in the past. However, in recent years, utilizing nanomaterials in thermophones has improved their efficiency and applicability. Nanomaterials, especially carbon nanotubes and graphene, have the advantage of low heat capacity per unit area (HCPUA) and high electrical and thermal conductivity. Therefore, they require a low electrical input power and generate a high sound pressure level (SPL) by efficiently transferring heat to the surrounding fluid. Laser-scribed graphene (LSG) can generate smooth spectra acoustic emissions over a wide range of frequencies by means of thermoacoustic (TA) emission. In this work, a thermophone based on LSG intercalated with multiwalled carbon nanotubes (MWCNTs) is proposed. The effects of varying input power, duty cycle percentage and measuring distance on the sound pressure level (SPL) of thermophones are studied to extract maximum efficiency. The achieved SPL of LSG, normalized to the input power, has increased by approximately 11 dB by intercalating it with MWCNTs, which shows that our proposed material can be a potential candidate for an efficient thermophone.Moin RabbaniAashir Waheed SyedSyed KhalidMohammad Ali MohammadMDPI AGarticlethermophonesthermoacousticgraphene oxidelaser-scribed graphenemultiwalled carbon nanotubespulse width modulationChemistryQD1-999ENNanomaterials, Vol 11, Iss 2874, p 2874 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	thermophones thermoacoustic graphene oxide laser-scribed graphene multiwalled carbon nanotubes pulse width modulation Chemistry QD1-999
spellingShingle	thermophones thermoacoustic graphene oxide laser-scribed graphene multiwalled carbon nanotubes pulse width modulation Chemistry QD1-999 Moin Rabbani Aashir Waheed Syed Syed Khalid Mohammad Ali Mohammad Fabrication and Characterization of a Thermophone Based on Laser-Scribed Graphene Intercalated with Multiwalled Carbon Nanotubes
description	The low sound pressure level and high operating voltages of thermophones have limited their applications in the past. However, in recent years, utilizing nanomaterials in thermophones has improved their efficiency and applicability. Nanomaterials, especially carbon nanotubes and graphene, have the advantage of low heat capacity per unit area (HCPUA) and high electrical and thermal conductivity. Therefore, they require a low electrical input power and generate a high sound pressure level (SPL) by efficiently transferring heat to the surrounding fluid. Laser-scribed graphene (LSG) can generate smooth spectra acoustic emissions over a wide range of frequencies by means of thermoacoustic (TA) emission. In this work, a thermophone based on LSG intercalated with multiwalled carbon nanotubes (MWCNTs) is proposed. The effects of varying input power, duty cycle percentage and measuring distance on the sound pressure level (SPL) of thermophones are studied to extract maximum efficiency. The achieved SPL of LSG, normalized to the input power, has increased by approximately 11 dB by intercalating it with MWCNTs, which shows that our proposed material can be a potential candidate for an efficient thermophone.
format	article
author	Moin Rabbani Aashir Waheed Syed Syed Khalid Mohammad Ali Mohammad
author_facet	Moin Rabbani Aashir Waheed Syed Syed Khalid Mohammad Ali Mohammad
author_sort	Moin Rabbani
title	Fabrication and Characterization of a Thermophone Based on Laser-Scribed Graphene Intercalated with Multiwalled Carbon Nanotubes
title_short	Fabrication and Characterization of a Thermophone Based on Laser-Scribed Graphene Intercalated with Multiwalled Carbon Nanotubes
title_full	Fabrication and Characterization of a Thermophone Based on Laser-Scribed Graphene Intercalated with Multiwalled Carbon Nanotubes
title_fullStr	Fabrication and Characterization of a Thermophone Based on Laser-Scribed Graphene Intercalated with Multiwalled Carbon Nanotubes
title_full_unstemmed	Fabrication and Characterization of a Thermophone Based on Laser-Scribed Graphene Intercalated with Multiwalled Carbon Nanotubes
title_sort	fabrication and characterization of a thermophone based on laser-scribed graphene intercalated with multiwalled carbon nanotubes
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/bb067d8f7eec41a48a9f2db9a3fb534c
work_keys_str_mv	AT moinrabbani fabricationandcharacterizationofathermophonebasedonlaserscribedgrapheneintercalatedwithmultiwalledcarbonnanotubes AT aashirwaheedsyed fabricationandcharacterizationofathermophonebasedonlaserscribedgrapheneintercalatedwithmultiwalledcarbonnanotubes AT syedkhalid fabricationandcharacterizationofathermophonebasedonlaserscribedgrapheneintercalatedwithmultiwalledcarbonnanotubes AT mohammadalimohammad fabricationandcharacterizationofathermophonebasedonlaserscribedgrapheneintercalatedwithmultiwalledcarbonnanotubes
_version_	1718411101380542464

Fabrication and Characterization of a Thermophone Based on Laser-Scribed Graphene Intercalated with Multiwalled Carbon Nanotubes

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