Browsing by Author "Lewetegn, Elias"

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    Minority Carrier Lifetime in Cltystalline and Polycrystalline Silicon Solar Cells
    (Addis Ababa University, 1999-06) Lewetegn, Elias; Stutenbaeume, Ulrich (PhD)
    The photoinduced open-circuit voltage decay technique was used to investigate the minority canier lifetime in crystalline and polycrystalline silicon solar cells. Tlus convenient investigation tecluuque allows a fast detennination of the minOlity canier lifetime in senUconductor matelials and is an impOltant technique to predict the solar cell perfOlmance. The decay curves were obtained with a xenon stroboscope lanlp and Nd:YAG laser and Nitrogen laser pulses as an excitation source