摘要
散射太阳能聚光器(SSC)是透明半透明光伏器件的一个重要分支,它可以将大面积的太阳光集中在小面积太阳能电池上,同时允许部分太阳光通过该器件。然而,由于缺乏合适的散射材料,近年来关于SSC的报道很少。我们制备了基于SiO_(2)气凝胶的SSC,并测试了它们的性能,发现其光电性能适中。测试结果还表明,该器件透光率和显色指数都很好,满足窗户的照明要求。开发了一个蒙特卡罗光线追踪程序来模拟SSC,并分析了所有光子的去向。还通过理论模拟分析了SSC中的多重散射机制对器件光电效率的影响。最后,提出了一种各向异性散射器件,它可以增加一次散射,抑制多重散射,从而显示出优异的光电效率。
Scattering solar concentrators(SSCs),an important component of transparent/translucent photovoltaic devices,can concentrate large-area sunlight on small-area solar cells while allowing some sunlight to pass through the devices.However,owing to the lack of suitable scattering materials,there have been few reports on SSCs in recent years.In this study,we fabricated SiO_(2) aerogel-based SSCs and tested their performances.The photoelectric performance was found to be moderate.Additionally,the results demonstrated excellent transmittance and color rendering index,which meet the lighting requirements of the windows.A Monte Carlo ray tracing program was developed to simulate an SSC and analyze the fate of all photons.We also analyzed the multiple scattering mechanism in SSCs that damages the photoelectric efficiency of a device via theoretical simulation.Finally,we proposed an anisotropic scattering device that can increase the primary scattering and suppress multiple scattering,resulting in excellent photoelectric efficiency.
作者
张峰
鲍骏
高琛
Feng Zhang;Jun Bao;Chen Gao(National Synchrotron Radiation Laboratory&Collaborative Innovation Center of Chemistry for Energy Materials,University of Science and Technology of China,Hefei 230029,China;School of Physical Sciences,University of Chinese Academy of Sciences,Beijing 100049,China)
基金
supported by the Chinese Universities Scie ntific Fund (CX3430000001)
