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 Laboratory (LBNL), Berkeley, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1576296
Patent Number(s):
10425742
Application Number:
14/737,903
Assignee:
The Regents of the University of California (Oakland, CA)
Patent Classifications (CPCs):
B - PERFORMING OPERATIONS B82 - NANOTECHNOLOGY B82Y - SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES
H - ELECTRICITY H04 - ELECTRIC COMMUNICATION TECHNIQUE H04R - LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS
DOE Contract Number:  
AC02-05CH11231
Resource Type:
Patent
Resource Relation:
Patent File Date: 2015 Jun 12
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; 42 ENGINEERING

Citation Formats

Zhou, Qin, and Zettl, Alexander. Electrostatic graphene speaker. United States: N. p., 2019. Web.
Zhou, Qin, & Zettl, Alexander. Electrostatic graphene speaker. United States.
Zhou, Qin, and Zettl, Alexander. Tue . "Electrostatic graphene speaker". United States. https://www.osti.gov/servlets/purl/1576296.
@article{osti_1576296,
title = {Electrostatic graphene speaker},
author = {Zhou, Qin and Zettl, Alexander},
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 = {2019},
month = {9}
}

Works referenced in this record:

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


Graphene-Drum Pump and Engine Systems
patent-application, December 2012


Electrostatic Acoustic Transducer
patent, December 1970


Backplate for Electret Loudspeaker
patent, February 1972


Microphone amplifier
patent-application, January 2008


Micromechanical Digital Loudspeaker
patent-application, June 2012


Semiconductor Device and Method for Manufacturing the Same
patent-application, June 2006


MEMS microphone
patent-application, June 2010


Flat speaker structure
patent-application, October 2010


Ultrasonic Transducer and Ultrasonic Speaker Using the Same
patent-application, October 2007


Electret Electrostatic Electroacoustic Transducer
patent, July 1975


Automatically activated wireless microphone for in-car video system
patent-application, March 2003


Methods of making speakers
patent, June 2012


Method and means for measuring sound intensity
patent, April 1987


Structure and manufacturing method of electrostatic speaker
patent, April 2012


Thermoacoustic device
patent-application, October 2012


Electromechanical transducer
patent, January 1981


Nanofluidic cell
patent-application, July 2012