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Spectral matching and outdoor solar to electrical conversion efficiency in thin-film silicon multi-junction solar cells

机译：薄膜硅多结太阳能电池的光谱匹配和室外太阳能到电的转换效率

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Semi-empirical computer modelling is used to investigate spectral matching in tandem and triple-junction thin film silicon solar cells. In amorphous/microcrystalline silicon (a-Si:H/μc-Si:H) tandem cells, current mis-match is offset by an increase in fill-factor, resulting in a broad peak in efficiency versus average photon energy. For a-Si:H/a-Si:H tandem cells, photo-generated currents in both sub-cells increase with increasing average photon energy, and efficiency is predicted to increase monotonically over a wide spectral range. a-Si:H/a-Si:H/μc-Si:H triple cells exhibit spectral behaviour similar to a-Si:H/μc-Si:H tandem cells, but with a smaller fill-factor dependence. Variations in spectral quality are predicted to account for only a small reduction in annual electrical energy yield, of some 2 to 4%.

机译：半经验计算机建模用于研究串联和三结薄膜硅太阳能电池的光谱匹配。在非晶/微晶硅（a-Si：H /μc-Si：H）串联电池中，电流失配被填充因子的增加所抵消，从而导致效率相对于平均光子能量的峰值较宽。对于a-Si：H / a-Si：H串联电池，两个子电池中的光生电流随平均光子能量的增加而增加，并且效率在宽光谱范围内单调增加。 a-Si：H / a-Si：H /μc-Si：H三元电池的光谱行为类似于a-Si：H /μc-Si：H串联电池，但对填充因子的依赖性较小。预计频谱质量的变化仅会导致每年电能产量的小幅下降，大约减少2％至4％。

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Reynolds S.; Urbain F.; Smirnov V.;
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Spectral matching and outdoor solar to electrical conversion efficiency in thin-film silicon multi-junction solar cells

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