Double Barrier Resonant Tunneling Transistor with a Fully Two Dimensional Emitter
- Sandia National Laboratories
A novel planar resonant tunneling transistor is demonstrated. The growth structure is similar to that of a double-barrier resonant tunneling diode (RTD), except for a fully two-dimensional (2D) emitter formed by a quantum well. Current is fed laterally into the emitter, and the 2D--2D resonant tunneling current is controlled by a surface gate. This unique device structure achieves figures-of-merit, i.e. peak current densities and peak voltages, approaching that of state-of-the-art RTDs. Most importantly, sensitive control of the peak current and voltage is achieved by gating of the emitter quantum well subband energy. This quantum tunneling transistor shows exceptional promise for ultra-high speed and multifunctional operation at room temperature.
- Research Organization:
- Sandia National Labs., Albuquerque, NM (US); Sandia National Labs., Livermore, CA (US)
- Sponsoring Organization:
- US Department of Energy (US)
- DOE Contract Number:
- AC04-94AL85000
- OSTI ID:
- 759887
- Report Number(s):
- SAND2000-1640J
- Journal Information:
- Science Magazine, Journal Name: Science Magazine
- Country of Publication:
- United States
- Language:
- English
Similar Records
A Planar Quantum Transistor Based on 2D-2D Tunneling in Double Quantum Well Heterostructures
Planar quantum transistor based on 2D{endash}2D tunneling in double quantum well heterostructures