Back to Search
Start Over
Electrostatic and electrochemical charging mechanisms for electric-double-layer gating media based on a crystalline LaF3 solid electrolyte
- Source :
- APL Materials. 9:061107
- Publication Year :
- 2021
- Publisher :
- AIP Publishing, 2021.
-
Abstract
- The electric-double-layer, constituted on the interface between an electronic conductor and an ionic conductor, enables practical applications of electronic devices and electrochemistry. Specifically, the electric-double-layer interfaces have been widely reported to achieve the insulator–metal transition and interfacial superconductivity in field-effect transistors because of the large electric-double-layer capacitance and high carrier density accumulation. Recently, a crystalline LaF3 solid electrolyte has been shown to be an ideal gate medium candidate for realizing stable electric-double-layer transistors. However, the intrinsic electrostatic and electrochemical mechanisms about LaF3 electric-double-layer interfaces remain elusive. Here, by combining electrochemical-impedance-spectroscopy with low-temperature technology, we demonstrate the temperature–frequency mapping “phase diagram” for the capacitance and dielectric loss at the LaF3/metal interfaces. Two well-distinguished regions correspond to the electrostatic and electrochemical nature, providing a promising guideline for practical device applications based on the crystalline LaF3 solid electrolyte.
- Subjects :
- 010302 applied physics
Materials science
business.industry
Transistor
General Engineering
Ionic bonding
02 engineering and technology
Electrolyte
021001 nanoscience & nanotechnology
Electrochemistry
01 natural sciences
Capacitance
Conductor
law.invention
law
0103 physical sciences
Optoelectronics
General Materials Science
Dielectric loss
0210 nano-technology
business
Phase diagram
Subjects
Details
- ISSN :
- 2166532X
- Volume :
- 9
- Database :
- OpenAIRE
- Journal :
- APL Materials
- Accession number :
- edsair.doi...........8668ee00a4fe00a1dc0e69bec6ac366a