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首页> 外文会议>European Photovoltaic Solar Energy Conference; 20060904-08; Dresden(DE) >THE REPRODUCIBILITY, UNIFORMITY AND SCALABILITY OF MULTI-LAYER GRADED BANDGAP SOLAR CELL STRUCTURES BASED ON GaAs/AlGaAs SYSTEM
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THE REPRODUCIBILITY, UNIFORMITY AND SCALABILITY OF MULTI-LAYER GRADED BANDGAP SOLAR CELL STRUCTURES BASED ON GaAs/AlGaAs SYSTEM

机译：基于GaAs / AlGaAs系统的多层梯度带隙太阳能电池结构的可复制性，均匀性和可扩展性

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摘要

New designs of graded bandgap solar cells based on p-type window materials have been experimentally tested with the well researched GaAs/Al_xGa_(1-x) As system. A gradual scaling up process has been tested by processing 0.5 mm diameter (0.002 cm~2), 3×3 mm~2 (0.090 cm~2) and 5×5 mm~2 (0.250 cm~2) solar cells and assessing them using current-voltage and photo-response techniques. It has been found that the devices show highest open circuit voltages (1070-1170) mV exceeding reported values, with excellent fill factors in the range (0.80-0.87) under AM1.5 conditions. The current densities measured are in the range (11-13) mA cm~(-2), which we believe have been detrimentally affected by either the capping layer used in the structure or any other un-desired doping profile in the structure. The scaling up process carried out in this work shows excellent reproducibility and uniformity with high yield, holding the above values for all three parameters. Detailed work carried out by measuring in five different laboratories will be presented in this paper.
机译：已使用经过充分研究的GaAs / Al_xGa_（1-x）As系统对基于p型窗材料的渐变带隙太阳能电池的新设计进行了实验测试。通过处理直径为0.5毫米（0.002 cm〜2），3×3毫米〜2（0.090 cm〜2）和5×5毫米〜2（0.250 cm〜2）的太阳能电池并进行评估来测试逐步放大的过程使用电流-电压和光响应技术。已经发现，这些器件在AM1.5条件下的开路电压（1070-1170）mV超过报告值，并且填充系数在（0.80-0.87）范围内。所测量的电流密度在（11-13）mA cm〜（-2）范围内，我们认为该密度受到结构中使用的覆盖层或结构中任何其他不希望有的掺杂分布的不利影响。在这项工作中进行的按比例放大过程显示出极好的可重复性和均匀性，并且具有高收率，并且对所有三个参数均保持上述值。本文将介绍通过五个不同实验室进行测量而进行的详细工作。

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