What is LID(Light Induce Degradation) and PID(Potential Induced Degradation) in Solar Cell?
Two common types of degradation that affect solar cells are light-induced degradation (LID) and potential-induced degradation (PID). In this blog post, we will explain what these phenomena are, how they occur, and how they can be prevented or mitigated. LID (Light Induced Degradation) loss: LID loss refers to the power loss and other loss of performance of crystalline p-type boron-doped silicon solar cells after the first few hours of exposure to sunlight. LID loss typically varies between 1-3%. The degradation of cells by sunlight is highly dependent on the quality of the wafer manufactured and is the result of a defect known as the “boron oxygen complex”. This defect occurs owing to oxygen being trapped in the silicon as part of the “Czochralski process” during manufacture. LID loss is a natural phenomenon that affects most crystalline silicon solar cells. It is most prominent in the first year of operation when the modules experience an initial power stabilization. The average ...