Study the Effect of Ultraviolet Radiation on Polycrystalline Silicon Solar Cell
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Date
2009-03
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Addis Ababa Universty
Abstract
The effect of ultraviolet(UV)radiation on polycrystalline silicon solar cell was studied.
The reflectance spectrum, performance parameter and external quantum efficiency
was analyzed by varying exposure time for different fluence of UV radiation.
Reflectance spectrum showed increase for 10 minutes of exposure and starts to decrease
and come back to nearly original value after 190 minutes exposure. Maximum
potential power (Pmax) showed no change for all fluence of UV radiation. Short circuit
current density (JSC) increase from 0.037 A
cm2 to 0.041 A
cm2 for 10 minutes of UV
radiation exposure and external quantum efficiency (EQE) of polycrystalline silicon
solar cell showed reduction for 10 minutes exposure and for the rest of fluences of UV
radiation very small change of EQE was observed.
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Keywords
Polycrystalline Silicon Solar Cell