Journal
APPLIED PHYSICS LETTERS
Volume 96, Issue 5, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.3309699
Keywords
conducting polymers; equivalent circuits; II-VI semiconductors; magnesium compounds; Nyquist diagrams; Schottky barriers; semiconductor heterojunctions; two-dimensional electron gas; zinc compounds
Categories
Funding
- Asahi Glass Foundation
- Global COE program
Ask authors/readers for more resources
A ZnO/Mg0.2Zn0.8O heterostructure was characterized at T=2 K through capacitance measurements with using a conducting polymer, poly(3,4-ethylenedioxythiophene) poly(styrenesulfonate) (PEDOT:PSS), as a Schottky contact. The Nyquist diagram, which is the trajectory curve of the complex impedance vector, appeared to be an excellent semicircular shape, implying that the PEDOT:PSS/ZnO/Mg0.2Zn0.8O junction can be described with an equivalent single RC parallel circuit. Capacitance-voltage characteristics elucidate the existence of a two-dimensional electron gas, where 10(19) cm(-3) electrons are confined within 5 nm at the ZnO/Mg0.2Zn0.8O heterointerface.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available