Photo conductive polymer: These are the polymers which conduct electricity only in the presence of light.
Examples: i) PVK or poly(N-vinyl carbazole ) ii) Poly (vinylpyrene),iii) poly(2-vinyl carbazole)
Applications:
1. Used extensive in photocopying (xerography), in laser printers.
2. Used as transistors and detectors.
3. Used in electronic devices, solar cells, batteries, photo-integrated circuit, space application etc.
4. Photoconductive material is connected as a part of circuit; it functions as a resistor, photo resistor.
5. Application of photoresist or is as photo detectors.
6. Some photo detector applications in which photo resistors are often used include camera light meters, street lights, clock radios and infrared detectors.