PROGRESS OF SEMICONDUCTOR SUPERLATTICES AND QUANTUM WELL MATERIALS
半导体超晶格、量子阱材料的进展

The concept of superlattice and the advance of the specimen prepsring tech-niques has been reviewed.The basic physical features of semiconductor superlattices andquantum wells have been shown.Developments and applications of semiconductorsuperlattices and quantum well materials have been summarized in the following aspects:(1)heterojunction structures(2)modulation doping(3)graded gap and bandgap engi-neering(4)strained-layer superlattice(5)searching for new concepts and phenomena.