Passive Components Blog
No Result
View All Result
  • Home
  • NewsFilter
    • All
    • Aerospace & Defence
    • Antenna
    • Applications
    • Automotive
    • Capacitors
    • Circuit Protection Devices
    • electro-mechanical news
    • Filters
    • Fuses
    • Inductors
    • Industrial
    • Integrated Passives
    • inter-connect news
    • Market & Supply Chain
    • Market Insights
    • Medical
    • Modelling and Simulation
    • New Materials & Supply
    • New Technologies
    • Non-linear Passives
    • Oscillators
    • Passive Sensors News
    • Resistors
    • RF & Microwave
    • Telecommunication
    • Weekly Digest

    TDK Releases Industry First 1uF 100V X7R MLCCs in 1608 Case

    YAGEO Expands One Turn Inductors for AI and High-Efficiency Power Applications

    YAGEO Extends Lifetime of its Aluminum SMD Chip Capacitors to 5500hrs at 125C/Ur

    Murata Releases Worlds First 10µF/50V Automotive MLCC in 0805 Size

    Würth Elektronik Extends High Saturation Flat-Wire Power Inductors Line

    Vishay Expands Automotive High Frequency Thin Film Chip Resistors

    Advancements and Applications of Switch Capacitor Power Converters

    KYOCERA AVX Releases Robust Vertical-Mating Battery Connectors

    Accelerating Full Bridge LLC Resonant Converter Design with Frenetic AI

    Trending Tags

    • Ripple Current
    • RF
    • Leakage Current
    • Tantalum vs Ceramic
    • Snubber
    • Low ESR
    • Feedthrough
    • Derating
    • Dielectric Constant
    • New Products
    • Market Reports
  • VideoFilter
    • All
    • Antenna videos
    • Capacitor videos
    • Circuit Protection Video
    • Filter videos
    • Fuse videos
    • Inductor videos
    • Inter-Connect Video
    • Non-linear passives videos
    • Oscillator videos
    • Passive sensors videos
    • Resistor videos

    Accelerating Full Bridge LLC Resonant Converter Design with Frenetic AI

    Understanding Switched Capacitor Converters

    Coupled Inductors Circuit Model and Examples of its Applications

    Inductor Resonances and its Impact to EMI

    Highly Reliable Flex Rigid PCBs, Würth Elektronik Webinar

    Causes of Oscillations in Flyback Converters

    How to design a 60W Flyback Transformer

    Modeling and Simulation of Leakage Inductance

    Power Inductor Considerations for AI High Power Computing – Vishay Video

    Trending Tags

    • Capacitors explained
    • Inductors explained
    • Resistors explained
    • Filters explained
    • Application Video Guidelines
    • EMC
    • New Products
    • Ripple Current
    • Simulation
    • Tantalum vs Ceramic
  • Knowledge Blog
  • Suppliers
    • Who is Who
  • Events
  • Home
  • NewsFilter
    • All
    • Aerospace & Defence
    • Antenna
    • Applications
    • Automotive
    • Capacitors
    • Circuit Protection Devices
    • electro-mechanical news
    • Filters
    • Fuses
    • Inductors
    • Industrial
    • Integrated Passives
    • inter-connect news
    • Market & Supply Chain
    • Market Insights
    • Medical
    • Modelling and Simulation
    • New Materials & Supply
    • New Technologies
    • Non-linear Passives
    • Oscillators
    • Passive Sensors News
    • Resistors
    • RF & Microwave
    • Telecommunication
    • Weekly Digest

    TDK Releases Industry First 1uF 100V X7R MLCCs in 1608 Case

    YAGEO Expands One Turn Inductors for AI and High-Efficiency Power Applications

    YAGEO Extends Lifetime of its Aluminum SMD Chip Capacitors to 5500hrs at 125C/Ur

    Murata Releases Worlds First 10µF/50V Automotive MLCC in 0805 Size

    Würth Elektronik Extends High Saturation Flat-Wire Power Inductors Line

    Vishay Expands Automotive High Frequency Thin Film Chip Resistors

    Advancements and Applications of Switch Capacitor Power Converters

    KYOCERA AVX Releases Robust Vertical-Mating Battery Connectors

    Accelerating Full Bridge LLC Resonant Converter Design with Frenetic AI

    Trending Tags

    • Ripple Current
    • RF
    • Leakage Current
    • Tantalum vs Ceramic
    • Snubber
    • Low ESR
    • Feedthrough
    • Derating
    • Dielectric Constant
    • New Products
    • Market Reports
  • VideoFilter
    • All
    • Antenna videos
    • Capacitor videos
    • Circuit Protection Video
    • Filter videos
    • Fuse videos
    • Inductor videos
    • Inter-Connect Video
    • Non-linear passives videos
    • Oscillator videos
    • Passive sensors videos
    • Resistor videos

    Accelerating Full Bridge LLC Resonant Converter Design with Frenetic AI

    Understanding Switched Capacitor Converters

    Coupled Inductors Circuit Model and Examples of its Applications

    Inductor Resonances and its Impact to EMI

    Highly Reliable Flex Rigid PCBs, Würth Elektronik Webinar

    Causes of Oscillations in Flyback Converters

    How to design a 60W Flyback Transformer

    Modeling and Simulation of Leakage Inductance

    Power Inductor Considerations for AI High Power Computing – Vishay Video

    Trending Tags

    • Capacitors explained
    • Inductors explained
    • Resistors explained
    • Filters explained
    • Application Video Guidelines
    • EMC
    • New Products
    • Ripple Current
    • Simulation
    • Tantalum vs Ceramic
  • Knowledge Blog
  • Suppliers
    • Who is Who
  • Events
No Result
View All Result
Passive Components Blog
No Result
View All Result

Researchers Propose New Lead-Free Antiferroelectric Material for High Energy Capacitors

11.8.2022
Reading Time: 3 mins read
A A
Energy storage in (La1-xBixFeO3)n/(BiFeO3)m superlattices. Device schematic
for capacitive geometry for polarization-electrical field loop measurements. (left) Measured energy stored as a function of applied
electric field for the antiferroelectric sample (right); Source: Cornell University

Energy storage in (La1-xBixFeO3)n/(BiFeO3)m superlattices. Device schematic for capacitive geometry for polarization-electrical field loop measurements. (left) Measured energy stored as a function of applied electric field for the antiferroelectric sample (right); Source: Cornell University

Group of researchers from Cornell University, US propose a new lead-free antiferroelectric dielectric material made from bismuth, iron and oxygen as a suitable candidate for next generation of high energy capacitors.

The paper Published in Science Advances describes a new type of “antiferroelectric” material, which could be very useful in devices where quick storage or discharge of energy is needed – such as in defibrillators. But as yet, most antiferroelectric materials contain lead, making them less useful. In their paper, the researchers state that the material has a lot of potential to be a powerful capacitor.

RelatedPosts

Researchers Believe that Antiferroelectric Superlattice Materials Can Yield in Next Gen of High Energy Capacitors

Researchers Introduced New NBST-based Ferroelectric Dielectric Material with Excellent Energy Storage Performance

Low Curie Temperature Materials, The Next Generation of High Energy Density Ceramic Dielectrics?

Researchers demonstrated the use of electrostatic boundary conditions to liberate an otherwise metastable state of BiFeO3, which displays high-energy storage density; this value could potentially be further enhanced by tuning the dielectric constant of the neighboring layer to alter the stability of the antiferroelectric phase and tuning field. In the case of the new antiferroelectric/antiferromagnetic BiFeO3, an applied electric field could potentially turn on and off magnetism with the conversion to the ferroelectric/weak ferromagnetic BiFeO3 parent phase.

Abstract

Antiferroelectric materials have seen a resurgence of interest because of proposed applications in a number of energy-efficient technologies. Unfortunately, relatively few families of antiferroelectric materials have been identified, precluding many proposed applications. Here, we propose a design strategy for the construction of antiferroelectric materials using interfacial electrostatic engineering. We begin with a ferroelectric material with one of the highest known bulk polarizations, BiFeO3. By confining thin layers of BiFeO3 in a dielectric matrix, we show that a metastable antiferroelectric structure can be induced. Application of an electric field reversibly switches between this new phase and a ferroelectric state. The use of electrostatic confinement provides an untapped pathway for the design of engineered antiferroelectric materials with large and potentially coupled responses.

Figure 1. Energy storage in (La1-xBixFeO3)n/(BiFeO3)m superlattices; source: Cornell University

As shown in Figure 1.C, there is very little energy stored in a ferroelectric sample as the material is almost entirely saturated at zero bias. In the case of the antiferroelectric sample, however, there is almost zero polarization at zero field, and it has a much higher integrated storage capacity as depicted in Figure 1.D. Figure 1.E plots the stored energy as a function of applied electric field for the sample shown in Figure 1.D.

The average integrated energy plotted was computed from multiple polarization field hysteresis loops acquired over several individual capacitors on the sample. As shown, the sample reaches a peak of ~30 J/cm3 at a field of ~2.7 MV/cm. After this voltage, there is appreciable electrical leakage that prevents accurate calculation of the stored energy.

Tuning the dielectric layer in the sample alters the energy barrier between the antiferroelectric and ferroelectric phases and thus the switching field/stored energy. This highlights the extreme tunability of this system. This value of the stored energy density, 30 J/cm3, compares favorably to other perovskite systems that contain lead. It is also higher than the lead-free relaxor SrTiO3-substituted BiFeO3 thin films (~18 J/cm3) and BiFeO3/SrTiO3 superlattices (~12 J/cm3).

Source: Science.org

Recent Posts

TDK Releases Industry First 1uF 100V X7R MLCCs in 1608 Case

27.6.2025
5

YAGEO Expands One Turn Inductors for AI and High-Efficiency Power Applications

27.6.2025
3

YAGEO Extends Lifetime of its Aluminum SMD Chip Capacitors to 5500hrs at 125C/Ur

27.6.2025
3

Murata Releases Worlds First 10µF/50V Automotive MLCC in 0805 Size

26.6.2025
29

Würth Elektronik Extends High Saturation Flat-Wire Power Inductors Line

26.6.2025
9

Vishay Expands Automotive High Frequency Thin Film Chip Resistors

26.6.2025
12

Advancements and Applications of Switch Capacitor Power Converters

25.6.2025
21

KYOCERA AVX Releases Robust Vertical-Mating Battery Connectors

25.6.2025
8

Accelerating Full Bridge LLC Resonant Converter Design with Frenetic AI

24.6.2025
14

Samsung Delivers Silicon Capacitors to Marwell AI Systems

24.6.2025
30

Upcoming Events

Jul 23
13:00 - 14:00 CEST

PCB design for a Smartwatch

View Calendar

Popular Posts

  • Buck Converter Design and Calculation

    0 shares
    Share 0 Tweet 0
  • Boost Converter Design and Calculation

    0 shares
    Share 0 Tweet 0
  • Flyback Converter Design and Calculation

    0 shares
    Share 0 Tweet 0
  • What is a Dielectric Constant and DF of Plastic Materials?

    4 shares
    Share 4 Tweet 0
  • LLC Resonant Converter Design and Calculation

    0 shares
    Share 0 Tweet 0
  • Ripple Current and its Effects on the Performance of Capacitors

    3 shares
    Share 3 Tweet 0
  • How to Design an Inductor

    0 shares
    Share 0 Tweet 0
  • Dual Active Bridge (DAB) Topology Explained

    0 shares
    Share 0 Tweet 0
  • SEPIC Converter Design and Calculation

    0 shares
    Share 0 Tweet 0
  • Flying Capacitors Explained

    0 shares
    Share 0 Tweet 0

Newsletter Subscription

 

Passive Components Blog

© EPCI - Leading Passive Components Educational and Information Site

  • Home
  • Privacy Policy
  • EPCI Membership & Advertisement
  • About

No Result
View All Result
  • Home
  • Knowledge Blog
  • Premium Suppliers

© EPCI - Leading Passive Components Educational and Information Site

This website uses cookies. By continuing to use this website you are giving consent to cookies being used. Visit our Privacy and Cookie Policy.
Go to mobile version