Semichaevsky Andrey V, Johnson Harley T, Yoon Jongseung, Nuzzo Ralph G, Li Lanfang, Rogers John
Department of Mechanical Science and Engineering, University of Illinois at Urbana-Champaign, 1206 West Green Street, Urbana, Illinois 61801, USA.
Appl Opt. 2011 Jun 10;50(17):2799-808. doi: 10.1364/AO.50.002799.
Efficiency of ultrathin flexible solar photovoltaic silicon microcell arrays can be significantly improved using nonimaging solar concentrators. A fluorophore is introduced to match the solar spectrum and the low-reflectivity wavelength range of Si, reduce the escape losses, and allow the nontracking operation. In this paper we optimize our solar concentrators using a luminescent/nonluminescent photon transport model. Key modeling results are compared quantitatively to experiments and are in good agreement with the latter. Our solar concentrator performance is not limited by the dye self-absorption. Bending deformations of the flexible solar collectors do not result in their indirect gain degradation compared to flat solar concentrators with the same projected area.
使用非成像太阳能聚光器可显著提高超薄柔性太阳能光伏硅微电池阵列的效率。引入一种荧光团以匹配太阳光谱和硅的低反射率波长范围，减少逸出损失，并实现非跟踪运行。在本文中，我们使用发光/非发光光子传输模型优化我们的太阳能聚光器。将关键建模结果与实验进行定量比较，二者吻合良好。我们的太阳能聚光器性能不受染料自吸收的限制。与具有相同投影面积的平面太阳能聚光器相比，柔性太阳能收集器的弯曲变形不会导致其间接增益降低。
