X-Y photoelectric sensors based on homogeneous conducting semiconductor films
A. A. Klyukanov, Э. А. Сенокосов, V. V. Sorochan, L. D. Tsirulik · Technical Physics · 2003
The distributions of the dark voltage and photovoltage over the surface of a conducting semiconductor disk (film) with current is calculated analytically. For a photodetector with five ohmic contacts arranged in an appropriate pattern at the circumference of the disk, a relationship between the output signal, current, and local illumination position is found. Experimental data indicate the feasibility of using such photodetectors as X-Y optical sensors.