Semiconductors and light effects

[omri3012]

A piece of Semiconductor is irradiated by light, will the light effects on resistivity be
intensified or reduced if the temprature is increased? why?

 

[berkeman]

A piece of Semiconductor is irradiated by light, will the light effects on resistivity be
intensified or reduced if the temprature is increased? why?

What are your thoughts? Does it matter if the semiconductor is intrinsic or extrinsic? How do you propose to measure the resistivity?