The effect of temperature, and photon energy on electrical conductivity using Van der Pauw Technique

Abstract

In this work, the effect of temperature and light frequency and intensity on some metals like Aluminum, Silver, Tantalum and Molybdenum is discussed. It was found that the conductivity decreases as temperature increases. The experimental relation is found to be in agreement with the theoretical. The conductivity also decreases as light frequency increases while it increases as light intensity increases.