Abstract
Negative differential resistance (NDR), an electronic property present in resonant tunneling diodes, enables high performance terahertz frequency oscillators and multi-state logic and memory devices. An important measure of NDR is the peak-to-valley current ratio (PVCR) and this has been extremely lacking in solid-state NDR devices. Here we show how a dimensional mismatch between the quantum dot and the electrodes of a planar graphene Double Barrier Resonant Tunneling Diode (DB-RTD) greatly enhances the PVCR of the device up to a ratio of 103. Our findings suggest a promising future for the application of planar graphene quantum dot devices in next generation electronics.
Original language | English |
---|---|
Title of host publication | 2017 IEEE 17th International Conference on Nanotechnology, NANO 2017 |
Publisher | Institute of Electrical and Electronics Engineers Inc. |
Pages | 965-968 |
Number of pages | 4 |
ISBN (Electronic) | 9781509030286 |
DOIs | |
State | Published - 21 Nov 2017 |
Externally published | Yes |
Publication series
Name | 2017 IEEE 17th International Conference on Nanotechnology, NANO 2017 |
---|
Bibliographical note
Publisher Copyright:© 2017 IEEE.
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Surfaces, Coatings and Films
- Electrical and Electronic Engineering