normalCdS films were grown by spray pyrolysis in a nitrogen atmosphere in an attempt to reduce the oxygen contamination and therefore the resistivity. This would reduce the loss due to series resistance in solar cells fabricated from them. It was determined that the oxygen contamination could not be reduced in this way due to the fact that a major source of oxygen is the solvent, water. Further, the films were found to contain more chlorine, carbon, and, in some instances, tin than was previously thought. It is suggested that these impurities are responsible for the resistivity of SP films being more strongly affected by oxygen adsorption than are vapor deposited or sintered films, and the resistivity of SP films being extremely sensitive to the deposition temperature of the film.

Die Versuche zur Herstellung von CdS‐Filmen mit geringerer Sauerstoff‐Verunreinigung (für Solarzellen) mittels einer Spraylösung aus äquimolarem 0.1 M CdClz und CS(NH2)2 waren nicht erfolgreich, da eine Hauptquelle für Sauerstoff das Lösungsmittel, Wasser, darstellt.