2015
DOI: 10.1073/pnas.1505800112
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Abstract: We present a graphene-based wideband microphone and a related ultrasonic radio that can be used for wireless communication. It is shown that graphene-based acoustic transmitters and receivers have a wide bandwidth, from the audible region (20∼20 kHz) to the ultrasonic region (20 kHz to at least 0.5 MHz). Using the graphene-based components, we demonstrate efficient high-fidelity information transmission using an ultrasonic band centered at 0.3 MHz. The graphene-based microphone is also shown to be capable of d… Show more

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Cited by 143 publications
(123 citation statements)
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“…These include, but are not limited to, structural testing of materials [1,2], underwater ranging and transmissions [3,4], imaging and acoustic microscopy [5,6], medical treatment [7][8][9], materials processing [10][11][12][13], cleaning [14] and more recently, wireless communications [15]. When ultrasound is incident upon a liquid it can facilitate the breaking of chemical bonds via the process of sonolysis, resulting in the formation of free radicals.…”
Section: Introductionmentioning
confidence: 99%
“…These include, but are not limited to, structural testing of materials [1,2], underwater ranging and transmissions [3,4], imaging and acoustic microscopy [5,6], medical treatment [7][8][9], materials processing [10][11][12][13], cleaning [14] and more recently, wireless communications [15]. When ultrasound is incident upon a liquid it can facilitate the breaking of chemical bonds via the process of sonolysis, resulting in the formation of free radicals.…”
Section: Introductionmentioning
confidence: 99%
“…The discovery of graphene [1] triggered enormous theoretical and experimental activity [2,3]. Henceforth, it has attracted much attention due to theoretical interests in fundamental physics, as well as its potential practical applications [4][5][6][7][8]. The attempt to understand graphene physics is not without difficulties, related e.g.…”
Section: Introductionmentioning
confidence: 99%
“…10 Therefore, graphene is an extremely interesting functional material for ultra-small nanoelectromechanical system (NEMS) devices. 8,[11][12][13][14][15] Suspended atomically thin graphene structures that include doubly-clamped graphene beams, fully clamped graphene membranes and graphene cantilevers have been extensively studied and 3 have been utilized in electromechanical resonators, [16][17][18][19][20] various types of pressure sensors, 9,[21][22][23][24][25][26][27][28] strain sensors, 29,30 high responsivity photodetectors, 31 NEMS switches, 32 earphones, 33 loudspeakers, 34 microphones 35,36 and other NEMS devices. 7,[37][38][39][40][41][42] NEMS accelerometers and gyroscopes typically require masses that are attached to suspended membranes, beams or cantilevers.…”
Section: Mems Nems Accelerometersmentioning
confidence: 99%