Application of single crystal germanium

For the manufacture of semiconductor devices. P-type germanium is obtained by doping trivalent elements such as indium, gallium and boron into high purity germanium, and n-type germanium is obtained by doping pentavalent elements such as antimony, arsenic and phosphorus. Germanium has been gradually replaced by silicon in the electronic industry. However, due to the higher electron and hole mobility of germanium than silicon, germanium has better performance than silicon in high-speed switching circuits. Germanium has new applications in infrared devices and gamma radiation detectors.