Hot Electron Devices

Summary

The tunnelling hot electron transfer amplifier (THETA) structure generates an almost monoenergetic, variable energy, hot electron beam (by tunnelling), which traverses a thin GaAs region to be eventually collected and energy analyzed. As the hot electrons traverse the device they are used to probe: scattering events, band nonparabolicity, size quantization effects, intervalley transfer, quantum mechanical reflections, and band discontinuities at interfaces.