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In this work, a simulation study of various HIT solar cell structures was carried out using AFORS-HET simulation software. The effect of defect states and fixed charges at the a-Si:H/p-Si interface on the solar cell performance was investigated. We found that the defect states located at the upper side of the a-Si:H/p-c-Si interface affected the HIT performance more greatly than those located at the...
In Pr 3+ and Eu 3+ co-doped K 2 GdF 5 , efficient energy transfer from Pr 3+ 4f5d states to Eu 3+ via Gd 3+ is observed. The integrated emission intensity ratio of Eu 3+5 D 0,1 / 5 D 2,3 upon Pr 3+ 4f5d state excitation is enhanced in comparison with the ratio upon Gd 3+6 I J excitation...
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