Lee Hyungman, Lim Heonkwang, Park Sungsik, Lee Dongjin
Opt Express. 2016 Dec 26;24(26):A1571-A1579. doi: 10.1364/OE.24.0A1571.
We fabricate a low-concentration photovoltaic (LCPV) module with a reflective compound parabolic concentrator (CPC) using roll-to-roll (R2R) slot-die coating and 3D printing technologies. A highly reflective silver thin-film is coated on a flexible plastic substrate, and the CPC frame is manufactured via 3D printing. The slot-die-coated silver film with thickness of more than 100 nm stably exhibits 95% reflectivity at 550 nm. Further, CPC concentrators with concentration ratios of 4X and 3X are assembled into silicon solar cells and characterized. Although the fill factor and maximum voltage slightly decrease, power and efficiency increase by factors of 3.51 and 2.63 with respect to the no-CPC-module case. Our approach can be used to optimize the design of various engineering products.
我们使用卷对卷（R2R）狭缝模涂覆和3D打印技术，制造了一种带有反射型复合抛物面聚光器（CPC）的低浓度光伏（LCPV）模块。在柔性塑料基板上涂覆高反射银薄膜，并通过3D打印制造CPC框架。厚度超过100nm的狭缝模涂覆银膜在550nm处稳定地呈现出95%的反射率。此外，将聚光比为4倍和3倍的CPC聚光器组装到硅太阳能电池中并进行表征。尽管填充因子和最大电压略有下降，但相对于无CPC模块的情况，功率和效率分别提高了3.51倍和2.63倍。我们的方法可用于优化各种工程产品的设计。
