5.8 Heterojunctions
Thus far we have discussed p-n junctions formed within a single semiconductor (homojunctions) and junctions between a metal and a semiconductor. The third important class of junctions consist of those between two lattice-matched semiconductors with different band gaps (heterojunctions). We discussed lattice-matching in Section 1.4.1. The interface between two such semiconductors may be virtually free of defects, and continuous crystals containing single or multiple heterojunctions can be formed. The availability of heterojunctions and multilayer structures in compound semiconductors opens a broad range of possibilities for device development. We will discuss many of these applications in later chapters, including heterojunction ...
Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
and much more.
Read now
Unlock full access