Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Defect-assisted conductivity in organic ionic plastic crystals.

Steven J Pas1, Junhua Huang, Maria Forsyth

  • 1CSIRO Manufacturing and Infrastructure Technology, Private Bag 33, Clayton South MDC, Victoria 3169, Australia.

The Journal of Chemical Physics
|March 3, 2005
PubMed
Summary
This summary is machine-generated.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Determination of <sup>137</sup>Ba nuclear quadrupole interactions in solids: a comparison of high field and zero field approaches.

Solid state nuclear magnetic resonance·2026
Same author

Ordered Ionic-Liquid Channels Enable Fast Anhydrous Proton Conduction at up to 240°C for Fuel Cells.

Angewandte Chemie (International ed. in English)·2026
Same author

Three-Dimensional Garment Architectures for Tactile Embodied Intelligence.

Advanced materials (Deerfield Beach, Fla.)·2026
Same author

Proton-shuttling nanosheet membranes enable high-power-density protonic fuel cells.

Science advances·2026
Same author

Nuclear hyperfine interactions in critical metal AlB<sub>2</sub>-structured diborides and correlations to physical properties.

Solid state nuclear magnetic resonance·2026
Same author

NMR determined interactions in CaB<sub>6</sub>-structured metal hexaborides: Correlation with structure and properties.

Solid state nuclear magnetic resonance·2026
Same journal

Anharmonic phonons via quantum thermal bath simulations.

The Journal of chemical physics·2026
Same journal

Quantum simulation of alignment dependent differential cross sections in co-propagating molecular beams at cold collision energies.

The Journal of chemical physics·2026
Same journal

Non-additive ion effects on the coil-globule equilibrium of a generic polymer in aqueous salt solutions.

The Journal of chemical physics·2026
Same journal

Insights into the unexpected small reduction of the temperature of maximum density of water by lithium chloride addition.

The Journal of chemical physics·2026
Same journal

Optical frequency comb double-resonance spectroscopy of the 9030-9175 cm-1 states of ethylene.

The Journal of chemical physics·2026
Same journal

Time reversal breaking of colloidal particles in cells.

The Journal of chemical physics·2026
See all related articles

Defects influence ionic conductivity in plastic crystal electrolytes, with conductivity strongly depending on defect volume in the most disordered phase. This relationship is phase-dependent, impacting material performance.

Area of Science:

  • Materials Science
  • Solid-State Chemistry
  • Physical Chemistry

Background:

  • Organic ionic plastic crystal electrolytes are crucial for various applications.
  • Understanding the relationship between defects and conductivity is key to optimizing their performance.
  • Positron annihilation lifetime spectroscopy is a valuable tool for probing defect structures.

Purpose of the Study:

  • To elucidate the role of defects, such as vacancies and extended lattice defects, in the conductivity mechanism of a model organic ionic plastic crystal electrolyte.
  • To investigate the phase dependence of ionic conductivity and its correlation with defect volume.
  • To determine the critical defect volumes associated with phase transitions and conductivity changes.

Main Methods:

  • Measurement of ionic conductivity across different phases.

Related Experiment Videos

  • Quantification of mean defect volumes using positron annihilation lifetime spectroscopy.
  • Analysis of the relationship between conductivity, defect volume, and rotational disorder.

    • Main Results:

    • Ionic conductivity exhibited a distinct phase dependence.
    • Defect volumes expanded with increasing rotational disorder.
    • The influence of defect volume on ionic conductivity was found to be phase-dependent.
    • A solid-solid phase transition to a highly conductive plastic crystalline phase occurred when mean defect volumes exceeded the molar volumes of ionic species.
    • Conductivity in the plastic crystalline phase showed the strongest dependence on defect volume.

    Conclusions:

    • Defect volume is a critical parameter influencing ionic conductivity in organic ionic plastic crystal electrolytes.
    • The phase behavior and conductivity are intrinsically linked to the size and evolution of defects.
    • The free volume model's predictions for critical volumes were found to be unrealistic for this system.