Engineers Garage

  • Electronic Projects & Tutorials
    • Electronic Projects
      • Arduino Projects
      • AVR
      • Raspberry pi
      • ESP8266
      • BeagleBone
      • 8051 Microcontroller
      • ARM
      • PIC Microcontroller
      • STM32
    • Tutorials
      • Audio Electronics
      • Battery Management
      • Brainwave
      • Electric Vehicles
      • EMI/EMC/RFI
      • Hardware Filters
      • IoT tutorials
      • Power Tutorials
      • Python
      • Sensors
      • USB
      • VHDL
    • Circuit Design
    • Project Videos
    • Components
  • Articles
    • Tech Articles
    • Insight
    • Invention Stories
    • How to
    • What Is
  • News
    • Electronic Product News
    • Business News
    • Company/Start-up News
    • DIY Reviews
    • Guest Post
  • Forums
    • EDABoard.com
    • Electro-Tech-Online
    • EG Forum Archive
  • DigiKey Store
    • Cables, Wires
    • Connectors, Interconnect
    • Discrete
    • Electromechanical
    • Embedded Computers
    • Enclosures, Hardware, Office
    • Integrated Circuits (ICs)
    • Isolators
    • LED/Optoelectronics
    • Passive
    • Power, Circuit Protection
    • Programmers
    • RF, Wireless
    • Semiconductors
    • Sensors, Transducers
    • Test Products
    • Tools
  • Learn
    • eBooks/Tech Tips
    • Design Guides
    • Learning Center
    • Tech Toolboxes
    • Webinars & Digital Events
  • Resources
    • Digital Issues
    • EE Training Days
    • LEAP Awards
    • Podcasts
    • Webinars / Digital Events
    • White Papers
    • Engineering Diversity & Inclusion
    • DesignFast
  • Guest Post Guidelines
  • Advertise
  • Subscribe

Graphene Based Flat Speakers Introduced for Mobile Audio Devices

By Parul Gupta September 12, 2016

Now, scientists at Korea Advanced Institute of Technology and Science have introduced a novel speaker design especially oriented for the mobile audio market that extracts its potentialities from nanomaterials. The scientists from KAIST have utilized graphene to generate a speaker that does not need an acoustic box to release sound.

According to the research, the scientists have utilized graphene in relatively simple procedures that yielded the lengthy-elusive thermo-acoustic speaker. The thermo-acoustics is based on the massively old idea that delineates that sound can be generated by the swift cooling and heating ofsubstance instead of vibrations.

While graphene has conventionally been witnessed to allow thermo-acoustics as well as carbon based nanotubes have even been utilized conventionally to generate thermo-acoustics speakers.The fact or feature that makes the work of KAIST scientists stand apart and above others is the convenience with which the overall procedure of fabricating graphene based speakers has taken place. The process is of two-steps and simple and confirms that making commercial applications is possible.

They instigated by first freeze-drying a composition of graphene oxide flakes. The scientists then doped and reduced the oxidized graphene to enhance its electronics features. The procedure does not need any templates to finish the process of fabrication. As an end-result – N-dopes diminished graphene oxide, and a three-dimensional graphene oxide aerogel termed as N-rGOA that is self-supporting.

The ultimate aerogel sound element has a porous macroscopic organizational structure can be conveniently modulated. For this reason, it would be possible to meet various applications that are rigid and that were otherwise not able to be catered. The speaker that has been produced by the researchers of KAIST comprises of an extensive assortment of 16 of the aerogels. It functions on the power of 40 watts and generates a high volume and sound quality comparable to that of other sound systems that are based on graphene. According to this study, the speakers that have been introduced can meet innumerable applications that are stringent and needs high-quality of products.

Conclusion

The scientists believed that due to the presence of the simplicity of their structural technique, speakers can be produced in mass quantity and for utilization in mobile gadgets and other types of applications. There has also been a video created for the same, according to which the speakers are flat and do not vibrate or fluctuate implying that they can be situated against all types of walls and can even be placed closed to the curved surfaces. Hence, it is proved that the device or speakers can be placed close to any surface and are ideal for multiple utilities.


Filed Under: News

 

Next Article

← Previous Article
Next Article →

Questions related to this article?
👉Ask and discuss on Electro-Tech-Online.com and EDAboard.com forums.



Tell Us What You Think!! Cancel reply

You must be logged in to post a comment.

EE TECH TOOLBOX

“ee
Tech Toolbox: 5G Technology
This Tech Toolbox covers the basics of 5G technology plus a story about how engineers designed and built a prototype DSL router mostly from old cellphone parts. Download this first 5G/wired/wireless communications Tech Toolbox to learn more!

EE Learning Center

EE Learning Center
“engineers
EXPAND YOUR KNOWLEDGE AND STAY CONNECTED
Get the latest info on technologies, tools and strategies for EE professionals.

HAVE A QUESTION?

Have a technical question about an article or other engineering questions? Check out our engineering forums EDABoard.com and Electro-Tech-Online.com where you can get those questions asked and answered by your peers!


RSS EDABOARD.com Discussions

  • How to generate and use large‑signal S‑parameter (LSSP) files for PA harmonic‑balance (HB) simulations?
  • VHF radio
  • IGBTs without negative gate drive
  • High failure rate of LLC converter
  • Broad band impedance matching network for loop antenna using transformer for wireless power transfer

RSS Electro-Tech-Online.com Discussions

  • Pickit 5
  • Pic18f25q10 osccon1 settings swordfish basic
  • turbo jet fan - feedback appreciated.
  • More fun with ws2812 this time XC8 and CLC
  • I Wanna build a robot

Featured – LoRa/LoRaWan Series

  • What is the LoRaWAN network and how does it work?
  • Understanding LoRa architecture: nodes, gateways, and servers
  • Revolutionizing RF: LoRa applications and advantages
  • How to build a LoRa gateway using Raspberry Pi
  • How LoRa enables long-range communication
  • How communication works between two LoRa end-node devices

Recent Articles

  • How IoT network topologies work
  • The top five AI startups to watch in 2025
  • STMicroelectronics unveils SoC based on secure MCU
  • Nexperia’s 48 V ESD diodes support higher data rates with ultra-low capacitance design
  • Taoglas releases Patriot antenna with 18 integrated elements covering 600 to 6000 MHz

EE ENGINEERING TRAINING DAYS

engineering

Submit a Guest Post

submit a guest post
Engineers Garage
  • Analog IC TIps
  • Connector Tips
  • Battery Power Tips
  • DesignFast
  • EDABoard Forums
  • EE World Online
  • Electro-Tech-Online Forums
  • EV Engineering
  • Microcontroller Tips
  • Power Electronic Tips
  • Sensor Tips
  • Test and Measurement Tips
  • 5G Technology World
  • Subscribe to our newsletter
  • About Us
  • Contact Us
  • Advertise

Copyright © 2025 WTWH Media LLC. All Rights Reserved. The material on this site may not be reproduced, distributed, transmitted, cached or otherwise used, except with the prior written permission of WTWH Media
Privacy Policy

Search Engineers Garage

  • Electronic Projects & Tutorials
    • Electronic Projects
      • Arduino Projects
      • AVR
      • Raspberry pi
      • ESP8266
      • BeagleBone
      • 8051 Microcontroller
      • ARM
      • PIC Microcontroller
      • STM32
    • Tutorials
      • Audio Electronics
      • Battery Management
      • Brainwave
      • Electric Vehicles
      • EMI/EMC/RFI
      • Hardware Filters
      • IoT tutorials
      • Power Tutorials
      • Python
      • Sensors
      • USB
      • VHDL
    • Circuit Design
    • Project Videos
    • Components
  • Articles
    • Tech Articles
    • Insight
    • Invention Stories
    • How to
    • What Is
  • News
    • Electronic Product News
    • Business News
    • Company/Start-up News
    • DIY Reviews
    • Guest Post
  • Forums
    • EDABoard.com
    • Electro-Tech-Online
    • EG Forum Archive
  • DigiKey Store
    • Cables, Wires
    • Connectors, Interconnect
    • Discrete
    • Electromechanical
    • Embedded Computers
    • Enclosures, Hardware, Office
    • Integrated Circuits (ICs)
    • Isolators
    • LED/Optoelectronics
    • Passive
    • Power, Circuit Protection
    • Programmers
    • RF, Wireless
    • Semiconductors
    • Sensors, Transducers
    • Test Products
    • Tools
  • Learn
    • eBooks/Tech Tips
    • Design Guides
    • Learning Center
    • Tech Toolboxes
    • Webinars & Digital Events
  • Resources
    • Digital Issues
    • EE Training Days
    • LEAP Awards
    • Podcasts
    • Webinars / Digital Events
    • White Papers
    • Engineering Diversity & Inclusion
    • DesignFast
  • Guest Post Guidelines
  • Advertise
  • Subscribe