Realization of a resonant tunneling permeable base transistor with optimized overgrown GaAs interfaces
Author
Summary, in English
A resonant tunneling permeable base transistor has been realized experimentally by overgrowing a tungsten grating placed in direct vicinity to a double barrier heterostructure. In this way, we can directly modulate the tunneling current via an embedded gate. Since the quality of the overgrown interface is critical, special attention is paid to this issue, and the effect of different wet etchants prior to overgrowth is studied both by electrical measurements and by the use of an atomic force microscope. A clear dependence of the electrical properties and the crystal quality on the etchants used is found. This is a key result for the realization of our resonant tunneling device.
Publishing year
2002
Language
English
Pages
1066-1069
Publication/Series
IEEE Transactions on Electron Devices
Volume
49
Issue
6
Document type
Journal article
Publisher
IEEE - Institute of Electrical and Electronics Engineers Inc.
Topic
- Electrical Engineering, Electronic Engineering, Information Engineering
- Condensed Matter Physics
Keywords
- resonant tunneling
- field-effect transistors
- gallium arsenide
- transistors
- surface cleaning
- tungsten
Status
Published
ISBN/ISSN/Other
- ISSN: 0018-9383