Investigate of PIN Microrystalline Silicon Solar Cell Based on One-Dimensional Model

One-dimensional model is built for microcrystalline silicon and based on this model AMPS software is used to investigate the influence of different crystalline volume fraction of microcrystalline silicon as the intrinsic layer on the properties of PIN solar cell . The calculations indicate that the crystalline volume fraction of 30-50% is suitable for the μc-Si film as an intrinsic layer of the PIN solar cells. The result is: With the crystalline ratio increases, the battery open circuit voltage decreases; short-circuit current first increases and then decreases in the ratio of crystalline to get maximum value when about 50%; conversion efficiency ratio in the crystalline state get 30% -40% at maximum; fill factor increases. By the quantum efficiency curve analysis to know the best there is a microcrystalline silicon solar cells to optimize the ratio of the crystalline state. In summary, 30% -50% of microcrystalline silicon crystalline more appropriate than a PIN microcrystalline silicon solar cells in the intrinsic layer.