A Photoelectric Valve
Jakob Kunz, Joseph Tykocinski Tykociner · Physics · 1933
The object of this experimental investigation was to determine the nature of the valve effect. After the description of the valve some characteristic and photometric curves are given. Sensitivity curves are then described which show the relation between the wave-length and the photoelectric current per unit of light energy. These curves show distinct maxima, like ordinary photoelectric cells; this character of the sensitivity curves support the theory that the effect is primarily a photoelectric phenomenon connected with space charges. Other assumptions are shown to be untenable. Some additional phenomena, expecially of the dark current, and experiments with various modifications of the valve are reported.