Browsing by Author "G/Micheal, Yeshitila"

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    Influence of Controlled Light Induced Degradation on Hydrogenated Amorphous Silicon (A-Si:H) Solar Cell Parameters
    (Addis Ababa University, 1994-03) G/Micheal, Yeshitila
    The influence of controlled light induced degradation on hydrogenated amorphous silicon (a -Si:H) based solar cell parameters was studied using low intensity (AMi. S) and high intensity (-lOAMi.S) illuminations obtained from WACOM solar simulator. The light soaking experiments were done on two f)'Pes of stmctures, namely, pin and p inp in solar cells. The devices were prepared by plasma enhanced chemical vapour deposition (PECVD) technique in a commercial J-clwmber PECVD systems On 10*10 cm2 glass substrate. The effect of various factors such as temperature, i-layer thicknesses, etc., on the degradatiO/I behavior of a-Si:H solar cells were inl'estigated. The paper presents the e.tperimental results obtained from light soaking tests on pin and pilip in samples under these dijJerellt conditions