Photovoltaic Effects at Rectifying Junctions to Deposited CdS Films

Abstract

The photovoltaic response of blocking contacts to deposited CdS films has been measured in the wavelength range 0.3–1.3µ. Film properties as deduced from these measurements are compared with inferences drawn from photoconductivity behavior and with information on film treatment. Although evidence for photoemission of electrons from the rectifying contacts was sought, none was found. An interesting interference phenomenon was observed in thicker films. The phenomenon can be traced to standing‐wave patterns in the films.