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首页> 外文会议>Physics, simulation, and photonic engineering of photovoltaic devices II >Miniaturized concentrator arrays as compact angle transformers for light collection and distribution
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Miniaturized concentrator arrays as compact angle transformers for light collection and distribution

机译：小型化的集中器阵列，作为紧凑的角度转换器，用于光的收集和分配

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Efficient light management is one of the key issues in modern energy conversion systems, might it be to collect optical power or to redistribute light generated by high power light emitting diodes. One problem maintains: the final size of the elements if high quality of light management is needed. We propose a novel scheme by using miniaturized angle transformers or concentrators that have size of several millimeters. In this size range diffraction effects play rarely a role and the design can be based on classical ray tracing. Dimensions are chosen to allow effective solution for high power light emitting diodes as well as solar cells. In most solar cell designs, the photocurrent is extracted through a conducting window layer in combination with a silver grid at the front of the device. The trade-off between series resistance and shadowing requires either buried contacts or screen printing of narrow lines with high aspect ratio. We propose an alternate approach where an array of parabolic concentrators directs the incoming light into the cell. The front metallization can thus be extended over the area between the paraboloids without shadowing loss. High power light emitting diodes are source with certain far field distribution and composed often out of several chips. Applying the concentrator array technology not on the whole source but locally on each chip promises small and effective solutions. We demonstrate realization of linear and hexagonal arrays of micro-concentration systems, discuss details of application and results of simulation of their optical properties in applications.
机译：高效的光管理是现代能量转换系统中的关键问题之一，可能是收集光功率或重新分配大功率发光二极管产生的光。维持一个问题：如果需要高质量的光管理，则元件的最终尺寸。我们通过使用尺寸为几毫米的小型角度变压器或集中器提出了一种新颖的方案。在这种尺寸范围内，衍射效应很少起作用，该设计可以基于经典的光线追踪。选择尺寸以有效解决大功率发光二极管以及太阳能电池的问题。在大多数太阳能电池设计中，光电流是通过导电窗口层与设备前部的银栅格结合提取的。串联电阻和阴影之间的权衡需要掩埋触点或丝网印刷具有高纵横比的窄线。我们提出了一种替代方法，其中，抛物线形聚光器阵列将入射光引导到单元中。因此，前部金属化可以扩展到抛物面之间的区域，而不会产生阴影损失。高功率发光二极管是具有一定远场分布的光源，通常由几个芯片组成。集中器阵列技术不是在整个源上而是在每个芯片上本地应用，都可以提供小型而有效的解决方案。我们演示了微浓缩系统的线性和六边形阵列的实现，讨论了应用程序的详细信息以及它们在应用中的光学特性的仿真结果。

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