Quantum-switched heterojunction bistable bipolar transistor by chemical beam epitaxy

Abstract
We proposed and demonstrated a novel bistable transistor−the quantum‐switched heterojunction bistable bipolar transistor. The transistor has two current states. With increasing base‐emitter voltage, the collector current is switched from high to low, while the base current is switched from low to high. Bistability is observed for a certain range of base voltage. This device has potential applications in implementing high‐speed single bipolar transistor memories, gain quenching in light‐emitting devices, and optoelectronic switching.