Photoelectron Emission from Semiconductors into Solutions and from Solutions into the Vapor Phase

Abstract

The two characteristic frequency regions, the near threshold and the extrathreshold (see Chapter 1), of the incident light have already been mentioned in connection with photoelectron emission from metals described in Section 1.1. The photoemission laws in the extrathreshold region are closely connected with the properties of the emitting metal, whereas the nearthreshold region supplies rather general information largely independent of the metal structure. Physically, the possibility of obtaining the latter type of information originates from the fact that a large number of electron-filled states exist in the conduction band of the metal.