Optics, Apparatus, and Methods

FIGURE 15. Schematic of apparatus for potential modulation quantum efficiency measurements. Central inset illustrates potential waveform. 

FIGURE 16. Schematic of voltage sweep apparatus for photoemission studies (by permission). 

There are two broad aspects of studies of photoemission from electrodes into condensed media—the description of the physical mechanisms per se and the investigation of the subsequent interactions of the photoemitted electron in the solution phase. In this chapter, the theory presented has dealt almost exclusively with the first of these topics, i.e., the various attempts at an exact, quantitative description of the microscopic interactions occurring in photoemission. The two concluding sections below contain brief summaries of the current status of each of these two fields of research. 

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