Logo
  • Resources
    • COTS for Space WEBINARS
    • ACCEDE 2022 Workshop on COTS
    • EEE COMPONENTS
    • SPECIFICATIONS / QPLs
    • EVENTS / WEBINARS
    • SPACE TALKS
    • TECH ARTICLES
    • MANUFACTURERS NOTIFICATIONS
  • Laboratory Services
    • LABORATORY STANDARD TESTING
    • NON STANDARD TESTING
    • SILICON CARBIDE -SiC- DIODES
    • CROWDTESTING
    • OPTOELECTRONICS
    • SMALL SATS
    • REPRESENTATIVE PROJECTS / PAPERS
  • Additional Services
    • INDUSTRY 4.0 CYBERSECURITY (IEC 62443)
    • PENETRATION TEST
    • CYBERSECURITY CERTIFIED (CSC)
    • CODE SCORE MATRIX
    • LONG-TERM STORAGE OF WAFERS
    • ELECTRONIC DESIGN
  • Tools
    • COMPARATOR
    • MY DCLs/BOMs
    • STOCKPLACE
  • About Us
  • My Request
  • Sign In
  • Resources
    • COTS for Space WEBINARS
    • ACCEDE 2022 Workshop on COTS
    • EEE COMPONENTS
    • SPECIFICATIONS / QPLs
    • EVENTS / WEBINARS
    • SPACE TALKS
    • TECH ARTICLES
    • MANUFACTURERS NOTIFICATIONS
  • Laboratory Services
    • LABORATORY STANDARD TESTING
    • NON STANDARD TESTING
    • SILICON CARBIDE -SiC- DIODES
    • CROWDTESTING
    • OPTOELECTRONICS
    • SMALL SATS
    • REPRESENTATIVE PROJECTS / PAPERS
  • Additional Services
    • INDUSTRY 4.0 CYBERSECURITY (IEC 62443)
    • PENETRATION TEST
    • CYBERSECURITY CERTIFIED (CSC)
    • CODE SCORE MATRIX
    • LONG-TERM STORAGE OF WAFERS
    • ELECTRONIC DESIGN
  • Tools
    • COMPARATOR
    • MY DCLs/BOMs
    • STOCKPLACE
  • About Us
  • My Request
  • Sign In
Blog Image
EEE Components, PASSIVES

Researchers Achieved Ultrahigh Capacitive Energy Density in Ion-Bombarded Relaxor Ferroelectric Dielectric Films

  • Posted by doEEEt Media Group
  • On August 5, 2020
  • 0

for Next Generation of Capacitors

Researchers at Berkeley University of California reached energy storage densities as high as ~133 joules per cubic centimetre with efficiencies exceeding 75% by high-energy ion bombardment of relaxor ferroelectric thin films.

Defect-enhanced energy storage

Dielectric capacitors are vital components of electronics and power systems. The thin-film materials of which capacitors are composed are usually optimized by changing the material composition. However, Kim et al. found that postprocessing an already effective thin-film dielectric by high-energy ion bombardment further improved the material because of the introduction of specific types of defects that ultimately improved the energy storage performance. The results suggest that postprocessing may be important for developing the next generation of capacitors.

Abstract

Dielectric capacitors can store and release electric energy at ultrafast rates and are extensively studied for applications in electronics and electric power systems. Among various candidates, thin films based on relaxor ferroelectrics, a special kind of ferroelectric with nanometer-sized domains, have attracted special attention because of their high energy densities and efficiencies.

We show that high-energy ion bombardment improves the energy storage performance of relaxor ferroelectric thin films. Intrinsic point defects created by ion bombardment reduce leakage, delay low-field polarization saturation, enhance high-field polarizability, and improve breakdown strength. We demonstrate energy storage densities as high as ~133 joules per cubic centimetre with efficiencies exceeding 75%. Deterministic control of defects by means of post-synthesis processing methods such as ion bombardment can be used to overcome the trade-off between high polarizability and breakdown strength

Science  03 Jul 2020:
Vol. 369, Issue 6499, pp. 81-84
DOI: 10.1126/science.abb0631

Features photo: Polarization-electric field hysteresis loops obtained from a PbZr0.2Ti0.8O3 thin-film inthe (a) as-grown state, and (b) after high-energy helium-ion bombardment; credit: S.Sahar, UC Berkeley

Source: Science mag

  • Author
  • Recent Posts
doEEEt Media Group
doEEEt Media Group
doEEEt media is the group behind every post on this blog.
A team of experts that brings you the latest and most important news about the EEE Part and Space market.
doEEEt Media Group
Latest posts by doEEEt Media Group (see all)
  • Miniature RF Connectors - April 29, 2025
  • Miniature RF Connectors for high-performance testing - April 24, 2025
  • Space-Grade components available for immediate delivery - April 10, 2025
TAGS: CAPACITOR DIELECTRIC ABSORTION Capacitors GENERAL DIELECTRICS THIN FILM RESISTOR

Previous Post

Develop a cost-efficient double-output buck converter up to 150W

Next Post

Impact of DC Bias to MLCC Class II DC Effective Capacitance and Aging
0 comments on Researchers Achieved Ultrahigh Capacitive Energy Density in Ion-Bombarded Relaxor Ferroelectric Dielectric Films
Recent Posts
  • Miniature RF Connectors
  • Miniature RF Connectors for high-performance testing
  • Space-Grade components available for immediate delivery
  • Introduction to RD ALFA Microelectronics: Components and Capabilities
  • Managing EEE components for LEO and lower cost space missions
Scroll

doEEEt.com

DoEEEt: Electrical Electronic Electromechanical (EEE) parts database. Find (EEE) components/parts products and datasheets from hundreds of manufacturers.

Privacy Policy and Legal Notice

Copyright

Cookie Policy

Copyright © 2021 ALTER TECHNOLOGY TÜV NORD S.A.U

Company

About us

Contact us

How does doEEEt works? – FAQ

ALTER Laboratory Services

Microwave and RF Testing

Small Sats Testing

COTS components Testing

Authenticity Test