DOE Patents title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Electrostatic graphene speaker

Abstract

This disclosure provides systems, methods, and apparatus associated with an electrostatically driven graphene speaker. In one aspect, a device includes a graphene membrane, a first frame on a first side of the graphene membrane, and a second frame on a second side of the graphene membrane. The first frame and the second frame both include substantially circular open regions that define a substantially circular portion of the graphene membrane. A first electrode is proximate the first side of the circular portion of the graphene membrane. A second electrode proximate the second side of the circular portion of the graphene membrane.

Inventors:
;
Issue Date:
Research Org.:
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1735250
Patent Number(s):
10771903
Application Number:
16/785,089
Assignee:
The Regents of the University of California (Oakland, CA)
Patent Classifications (CPCs):
H - ELECTRICITY H04 - ELECTRIC COMMUNICATION TECHNIQUE H04R - LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10S - TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
DOE Contract Number:  
AC02-05CH11231
Resource Type:
Patent
Resource Relation:
Patent File Date: 02/07/2020
Country of Publication:
United States
Language:
English

Citation Formats

Zhou, Qin, and Zettl, Alexander K. Electrostatic graphene speaker. United States: N. p., 2020. Web.
Zhou, Qin, & Zettl, Alexander K. Electrostatic graphene speaker. United States.
Zhou, Qin, and Zettl, Alexander K. Tue . "Electrostatic graphene speaker". United States. https://www.osti.gov/servlets/purl/1735250.
@article{osti_1735250,
title = {Electrostatic graphene speaker},
author = {Zhou, Qin and Zettl, Alexander K.},
abstractNote = {This disclosure provides systems, methods, and apparatus associated with an electrostatically driven graphene speaker. In one aspect, a device includes a graphene membrane, a first frame on a first side of the graphene membrane, and a second frame on a second side of the graphene membrane. The first frame and the second frame both include substantially circular open regions that define a substantially circular portion of the graphene membrane. A first electrode is proximate the first side of the circular portion of the graphene membrane. A second electrode proximate the second side of the circular portion of the graphene membrane.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2020},
month = {9}
}

Works referenced in this record:

Polymer-free, low tension graphene mechanical resonators: Polymer-free, low tension graphene mechanical resonators
journal, October 2013


Flexible and transparent graphene films as acoustic actuator electrodes using inkjet printing
journal, January 2011


Electromechanical Resonators from Graphene Sheets
journal, January 2007


Multifunctional Free-Standing Single-Walled Carbon Nanotube Films
journal, March 2011


Wing stridulation in a Jurassic katydid (Insecta, Orthoptera) produced low-pitched musical calls to attract females
journal, February 2012


Radio frequency electrical transduction of graphene mechanical resonators
journal, December 2010


Single-layer graphene sound-emitting devices: experiments and modeling
journal, January 2012


Methods of making speakers
patent, June 2012


Method and means for measuring sound intensity
patent, April 1987


Electrostatic graphene loudspeaker
journal, June 2013


Measurement of the Elastic Properties and Intrinsic Strength of Monolayer Graphene
journal, July 2008


Graphene electrostatic microphone and ultrasonic radio
journal, July 2015


Electromechanical transducer
patent, January 1981


Method and system for ultrasonic measurement and alignment
patent, September 2012


Mechanics of freely-suspended ultrathin layered materials: Mechanics of 2D materials
journal, October 2014


Underwater Sound Generation Using Carbon Nanotube Projectors
journal, May 2010


Multilayer graphene condenser microphone
journal, November 2015


Graphene-on-Paper Sound Source Devices
journal, May 2011


High, Size-Dependent Quality Factor in an Array of Graphene Mechanical Resonators
journal, February 2011


Thermoacoustic Sound Generation from Monolayer Graphene for Transparent and Flexible Sound Sources
journal, September 2012


A Highly Sensitive Fiber-Optic Microphone Based on Graphene Oxide Membrane
journal, October 2017


Large-Scale Arrays of Single-Layer Graphene Resonators
journal, December 2010


Flexible, Stretchable, Transparent Carbon Nanotube Thin Film Loudspeakers
journal, December 2008


Nonlinear damping in mechanical resonators made from carbon nanotubes and graphene
journal, May 2011


Highly sensitive fiber optic Fabry-Perot geophone with graphene coated PMMA membrane
conference, April 2017


Performance of monolayer graphene nanomechanical resonators with electrical readout
journal, September 2009