Improved efficiency of a four-junction solar cell under real sunlight
Improved efficiency of a four-junction solar cell under real sunlight
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提高四结太阳能电池在真实阳光下的效率
DOI：
10.7567/jjap.57.08rd04
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发表时间：
2018
影响因子：
1.5
通讯作者：
Uchida S
中科院分区：
文献类型：
--
作者：
Teramoto Hideo;Ajima Yoshiaki;Kaneko Yamato;Nakamura Yuki;Jomen Ryota;Uchida Shiro;Dai Pan;Lu Shulong;Teramoto H;Uchida S
为了研究太阳能电池特性的季节变化，我们测量了夏季和冬季的光谱辐照度，同时研究了真实的阳光下的四结太阳能电池的效率。在夏季38个太阳和冬季64个太阳的条件下，获得了38.3%和40.3%的效果。在夏季，在1个太阳下，一个阶梯状的电流-电压曲线被捕获，这一结果的原因，以及在夏季效率值较低的原因提出了本文。还使用数值模拟优化了提高转换效率所需的每个子电池的厚度。
To investigate seasonal variations in solar cell characteristics, we measured the spectral irradiance in summer and winter and simultaneously examined the efficiency of a four-junction solar cell under real sunlight. Efficiencies of 38.3% at 38 suns in the summer and 40.3% at 64 suns in the winter were obtained. In the summer under 1 sun, a step-like current–voltage curve was captured, and the reason for this result as well as the cause of lower efficiency values in the summer are proposed herein. The thickness of each subcell required to improve the conversion efficiency was also optimized using numerical simulations.