Re: Does cadmium sulphide possess property of superconductivity?

CdS shows superconductivity at 77K, see

http://www.sciencedirect.com/science/article/pii/0378436381903120

Some other remarks about your post:

• A Resistor is a kind of (not very good) conductor. A Non-Conductor is called Insulator.
• Photoconductors (also called Photoresistors) do not generate electricity from irradiation. You might mean a solar cell, which consists of a photoconducting semiconductor with built-in p-n-Junction.
• Photoconductors change their resistivity with irradiation. Superconductors, by definition, have Zero resistivity and thus cannot be Photoconductor at the same time.
• Light is an electromagnetic wave, i.e. it has an electric and magnetic field component. Superconductors block the magnetic component, so no light can enter them.