晶体管的发明,使电子技术产生了伟大的变革,而晶体管的核心是半导体p-n结,即同质结. 近年来,一种叫做异质结的半导体结构要],在半导体激光器、发光器件、太阳电池、光电接收器件、晶体管和集成光路等科学技术领域内别开生面,显示了它的优越性. 一、基本物理概念1.什么是异质结 The invention of the transistor, the electronic technology has undergone great changes, and the core of the transistor is the semiconductor pn junction, that is, homogeneity junction. In recent years, a semiconductor structure called heterostructures] to be in the semiconductor lasers, light-emitting devices, the sun Batteries, optoelectronic receiver devices, transistors and integrated optical circuits and other science and technology in the face, showing its superiority. First, the basic physical concepts 1. What is the heterojunction