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Active and Passive Electronic Components
Volume 27, Issue 2, Pages 95-105

Optoelectronic Logical Gates “AND”, “OR” and “NOT”

1Institute of Electrical Engineering, Technical University, Warszawska 24, Kraków 32-155, Poland
2Department of Electronics, Academy of Mining and Metallurgy, Al. Mickiewicza 30, Kraków 30-059, Poland

Received 16 March 2003; Revised 21 March 2003

Copyright © 2004 Hindawi Publishing Corporation. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Optoelectronic AND, OR and NOT logical gates were composed of thin film photoconducting and electroluminescent elements, made of cadmium sulphide and zinc sulphide, respectively, doped with copper, chlorine and manganese. The gates consisted of several photoconducting elements and one electroluminescent element suitably connected and supplied with a sinusoidal voltage. In such circuits the functions of product, sum and negation for input light signals illuminating the photoconducting elements were realized, and the output signal was the light emitted by the electroluminescent element.