Non-equilibrium states in Semiconductor

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Non-equilibrium states in semiconductors occur when external factors, like light or UV radiation, cause electrons to gain kinetic energy and transition to higher energy levels. This process can also result from internal interactions, such as collisions between electrons. The distinction lies in the fact that these states are temporary and differ from the stable equilibrium state of electrons. Understanding these dynamics is crucial for applications in semiconductor technology. Overall, non-equilibrium states play a significant role in the behavior and functionality of semiconductors.
NJunJie
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Just to clarify - non equilibrium states in semiconductor means that the semiconductor is affected by external factors such as light?
 
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Yes, but to be more specific a non-equilibrium state happens when an electron gains some kinetic energy and jumps to an energy level that is higher than its stable or eqilibrium state. The electron may gain this energy either from an external source (such as light or UV) or an internal source (collision with other electrons).
 
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