摘要
以高带隙的AlGaInP材料为研究对象,基于AlGaInP/Ge双结电池结构,通过改变AlGaInP子电池的Al组分、基区厚度、窗口层厚度等参数来改善电池的电性能。研究结果表明:随着Al组分从10%降至6%,AlGaInP子电池的材料带隙从2.05 eV降至2.00 eV,外量子效率(EQE)响应的范围及强度均有明显提高,在AM1.5G光谱条件下电池效率从10.01%升至14.86%,并发现通过基区加厚可提高中长波段的EQE响应,而通过窗口层减薄则有利于提高短波EQE响应,最终双结电池在AM1.5G光谱条件下效率达到17.16%。
Optimizing the aluminum content,base thickness and window thickness of AlGaInP sub-cell,the efficiency of AlGaInP/Ge double-junction(DJ)solar cell is obviously improved.We find that the samples with lower aluminum content exhibited a clear improvement in the all-wavelength external quantum efficiency(EQE)of the AlGaInP sub-cell.And by increasing the base thickness,a clear improvement was achieved in the long-wavelength EQE of the AlGaInP sub-cell.Finally,we reduce the thickness of the window layer and get an improvement in the short-wavelength EQE of the AlGaInP sub-cell.Under the spectrum at 1000 W/m^2(AM1.5 G),the best of these AlGaInP/Ge DJ solar cells had an efficiency of 17.16%.
作者
姜德鹏
黄珊珊
马涤非
彭娜
张小宾
Jiang Depeng;Huang Shanshan;Ma Difei;Peng Na;Zhang Xiaobin(Shanghai Institute of Space Power-Sources,Shanghai 200245,China;Uniwatt Technology Co.,Ltd.,Zhongshan 528437,China)
出处
《太阳能学报》
EI
CAS
CSCD
北大核心
2019年第9期2616-2621,共6页
Acta Energiae Solaris Sinica
