Abstract
Mechanism of photoconductot formation from chemical precipitate CdS is investigated. Six different chemical precipitates are used for starting materials. Hexagonality, reflectivity and spectral sensitivity are measured to know the property of the precipitates. The precipitates are fired after additions of an activator in the form of CuCl2 and an CdCl2 flux.
The results of differential thermal analysis, thermogravimetric analysis, and of measurements of particle diameter, spectral sensitivity and absorption due to Cu ions show the property of the photoconductor obtained here is strongly dependent on the property of the precipitate. Particle diameter, peak height ratio and absorption due to Cu ions decrease as specific volume of the precipitate increases. Particle diameter, peak height ratio and absorption due to Cu ions are correlated each other.
