Conventional photovoltaic (PV) modules (exclude interdigitated back contact modules) with silicon or gallium arsenide PV cells often have significant inactive module surface area. This results from wafer cutting techniques and metal contacts that reduce the module’s collection area and the resultant power conversion efficiency. A holographic light collector (HLC) combining a low-cost holographic optical element and a diffuser into conventional PV modules is proposed and evaluated to collect the solar illumination over the inactive module area. The angular tolerance and extra annual energy yield (EY) of the HLC are analyzed. It is found that improvements in EY of 4.5%, 4.1%, and 3.8% can be obtained when PV panels are deployed with two-axis tracking systems, single-axis tracking systems, and without tracking systems, respectively.

中文翻译：

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全息低浓度光学系统可提高常规太阳能电池板的光收集效率

具有砷化硅或砷化镓PV电池的常规光伏（PV）模块（不包括叉指背触点模块）通常具有显着的非活动模块表面积。这是由于晶圆切割技术和金属触点减少了模块的收集面积并降低了功率转换效率。提出了一种将低成本全息光学元件和漫射器组合到常规PV模块中的全息光收集器（HLC），并对其进行了评估，以收集非活动模块区域上的太阳光。分析了HLC的角度公差和额外的年发电量（EY）。已经发现，当PV板分别部署有两轴跟踪系统，单轴跟踪系统和不具有跟踪系统时，可以实现EY的4.5％，4.1％和3.8％的改进。