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 Concept Videos

Ionic Crystal Structures02:42

Ionic Crystal Structures

14.6K
Ionic crystals consist of two or more different kinds of ions that usually have different sizes. The packing of these ions into a crystal structure is more complex than the packing of metal atoms that are the same size.
Most monatomic ions behave as charged spheres, and their attraction for ions of opposite charge is the same in every direction. Consequently, stable structures for ionic compounds result (1) when ions of one charge are surrounded by as many ions as possible of the opposite...
14.6K
Trends in Lattice Energy: Ion Size and Charge02:54

Trends in Lattice Energy: Ion Size and Charge

24.1K
An ionic compound is stable because of the electrostatic attraction between its positive and negative ions. The lattice energy of a compound is a measure of the strength of this attraction. The lattice energy (ΔHlattice) of an ionic compound is defined as the energy required to separate one mole of the solid into its component gaseous ions. For the ionic solid sodium chloride, the lattice energy is the enthalpy change of the process:
24.1K
Ionic Bonding and Electron Transfer02:48

Ionic Bonding and Electron Transfer

42.0K
Ions are atoms or molecules bearing an electrical charge. A cation (a positive ion) forms when a neutral atom loses one or more electrons from its valence shell, and an anion (a negative ion) forms when a neutral atom gains one or more electrons in its valence shell. Compounds composed of ions are called ionic compounds (or salts), and their constituent ions are held together by ionic bonds: electrostatic forces of attraction between oppositely charged cations and anions. 
42.0K

You might also read

Related Articles

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

Sort by
Same author

Unlocking Efficient Direct Charge Transfer of Ni-N Bridge 2D N-ZnIn<sub>2</sub>S<sub>4</sub>/Ni Single-Atom Photocatalysts for Hydrogen Evolution.

ACS applied materials & interfaces·2025
Same author

Tuning configurations and orbitals of vanadyl phthalocyanine on transition metals via surface alloy effect.

The Journal of chemical physics·2025
Same author

Strong Built-In Electric Field-Assisted ZnO/ZnIn<sub>2</sub>S<sub>4</sub> S-Scheme Heterostructure to Promote Photocatalytic Hydrogen Production.

Inorganic chemistry·2024
Same author

Unraveling the atomic structure and dissociation of interfacial water on anatase TiO<sub>2</sub> (101) under ambient conditions with solid-state NMR spectroscopy.

Chemical science·2024
Same author

Toxic gas sensing performance of arsenene functionalized by single atoms (Ag, Au): a DFT study.

RSC advances·2024
Same author

Novel Perovskite Structured Nd<sub>0.5</sub>Ba<sub>0.5</sub>Co<sub>1/3</sub>Ni<sub>1/3</sub>Mn<sub>1/3</sub>O<sub>3-δ</sub> as Highly Efficient Catalyst for Oxygen Electrode in Solid Oxide Electrochemical Cells.

ACS applied materials & interfaces·2023

Related Experiment Video

Updated: Aug 19, 2025

Growth and Electrostatic/chemical Properties of Metal/LaAlO3/SrTiO3 Heterostructures
11:54

Growth and Electrostatic/chemical Properties of Metal/LaAlO3/SrTiO3 Heterostructures

Published on: February 8, 2018

10.3K

Fast ionic transport in SrTiO3/LaAlO3 heterostructure.

Quan Shi1, Haijian Zhong2, Ming Huang3

  • 1Engineering Research Center of Nano-Geo Materials of Ministry of Education, Faculty of Materials Science and Chemistry, China University of Geosciences, 388 Lumo Road, Wuhan 430074, China. wuyan@cug.edu.cn.

Chemical Communications (Cambridge, England)
|November 29, 2022
PubMed
Summary

Strontium titanate/lanthanum aluminate heterostructures show high ionic conductivity and fuel cell performance. A built-in electric field at the interface enhances ion conduction for efficient energy conversion.

More Related Videos

Tuning Oxide Properties by Oxygen Vacancy Control During Growth and Annealing
06:44

Tuning Oxide Properties by Oxygen Vacancy Control During Growth and Annealing

Published on: June 9, 2023

3.2K
Writing and Low-Temperature Characterization of Oxide Nanostructures
06:43

Writing and Low-Temperature Characterization of Oxide Nanostructures

Published on: July 18, 2014

10.1K

Related Experiment Videos

Last Updated: Aug 19, 2025

Growth and Electrostatic/chemical Properties of Metal/LaAlO3/SrTiO3 Heterostructures
11:54

Growth and Electrostatic/chemical Properties of Metal/LaAlO3/SrTiO3 Heterostructures

Published on: February 8, 2018

10.3K
Tuning Oxide Properties by Oxygen Vacancy Control During Growth and Annealing
06:44

Tuning Oxide Properties by Oxygen Vacancy Control During Growth and Annealing

Published on: June 9, 2023

3.2K
Writing and Low-Temperature Characterization of Oxide Nanostructures
06:43

Writing and Low-Temperature Characterization of Oxide Nanostructures

Published on: July 18, 2014

10.1K

Area of Science:

  • Materials Science
  • Solid-State Chemistry
  • Electrochemistry

Background:

  • Heterostructures of SrTiO3/LaAlO3 are known for unique electronic properties.
  • Interfaces in oxide materials can exhibit emergent phenomena crucial for device applications.

Purpose of the Study:

  • To investigate the ionic conductivity and fuel cell performance of SrTiO3/LaAlO3 heterostructures.
  • To elucidate the role of the built-in electric field and electron accumulation layer in ionic conduction.

Main Methods:

  • Fabrication of SrTiO3/LaAlO3 heterostructures.
  • Measurement of ionic conductivity using electrochemical impedance spectroscopy.
  • Evaluation of fuel cell performance.
  • Theoretical calculations (e.g., DFT) and experimental analysis of interface properties.

Main Results:

  • Achieved high ionic conductivity of 0.24 S cm⁻¹.
  • Demonstrated significant fuel cell power output of 675 mW cm⁻² at 520 °C.
  • Identified a built-in electric field at the interface, correlated with an electron accumulation layer.

Conclusions:

  • The SrTiO3/LaAlO3 heterostructure exhibits excellent ionic conductivity and fuel cell performance.
  • The built-in electric field at the interface is critical for facilitating fast ion transport.
  • These findings highlight the potential of oxide heterostructures for advanced energy devices.