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To achieve efficiency improvement of n-type oxide semiconductor/p-type Cu 2 O heterojunction solar cells fabricated using Cu 2 O sheets prepared by oxidizing thermally Cu sheets, the influence of heterojunction formation temperature on the obtainable conversion efficiency was investigated in different types of solar cells with Al-doped ZnO (AZO)/Cu 2 O and AZO/non-doped ZnO...
The effect of air annealing on state-of-the-art, solar-cell-quality CdS/Cu(In,Ga)Se 2 heterojunctions has been studied using contact potential difference and surface photovoltage measurements. The annealing treatment is shown to have no significant effect on the band lineup of the heterojunction. However, the surface photovoltage spectral response increases markedly upon air annealing. These...
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