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首页> 外文期刊>Journal of Physics, D. Applied Physics: A Europhysics Journal >24.5% efficient GaAs p-on-n solar cells with 120 mu m h(-1) MOVPE growth
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24.5% efficient GaAs p-on-n solar cells with 120 mu m h(-1) MOVPE growth

机译:24.5%高效的GaAs p-on-n太阳能电池,120 mu m h(-1)MOVPE生长

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摘要

By enhancing the transport of gas precursors though the chemical boundary layer using a narrow-channel reactor, the growth rate (GR) of GaAs by metal-organic vapor-phase epitaxy has been increased to 120 mu m h(-1) without saturation with an increase in TMGa supply. The minority hole lifetime in n-GaAs was clearly shortened with an increase in GR from 20 to 120 mu m h(-1). Consequently, the short-circuit current density as well as conversion efficiency slightly decreased with an increase in GR. Nevertheless, a conversion efficiency of 24.48% could be realized for a GaAs cell with the n-type base layer grown at 120 mu m h(-1).
机译:通过使用窄通道反应器的化学边界层增强气体前体的运输,金属 - 有机气相外延的GaAs的生长速率(GR)已经增加到120μmH(-1)而没有饱和 增加TMGA供应。 N-GaAs中的少数孔寿命明显缩短,增加了20至120 mu m H(-1)。 因此,随着GR的增加,短路电流密度以及转换效率略微降低。 然而,可以实现24.48%的转化效率,用于在120μmH(-1)下生长的N型碱基层的GaAs细胞。

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