QUANTUM MICROSTRUCTURE DEVICES

Recent developments in the study of nm-scale semiconductor micro-structures are reviewed with emphasis on their applications to advanced electronic and photonic devices. We describe, in particular, progresses in the use of quantum well structures for such new devices as several novel resonant-tunneling transistors, the Bloch oscillator, and a intersubband infrared laser. Also discussed are key developments to explore the use of nm-scale quantum wires and quantum boxes for injection lasers, transistors and other new devices. Importances of developing epitaxial methods for the fabrication of these in-plane quantum structures are emphasized