We propose a pair of coupled nanowires (PCNWs) and examine light trapping in PCNWs with various diameters based on the finite-difference time-domain simulation. We demonstrated that light absorption in PCNWs could be significantly tuned via engineering light coupling mainly due to the reshaped and strengthened leaky mode resonances. The photocurrent of PCNWs is remarkably enhanced by 24.1% than a pair of uncoupled NWs and 28.2% than bare NW. This work provides a practical approach to increase light absorption based on the light-coupled resonant structures.

中文翻译：

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用于光伏应用的单耦合硅纳米线中的光捕获

我们提出了一对耦合纳米线 (PCNW)，并基于有限差分时域模拟检查了具有各种直径的 PCNW 中的光捕获。我们证明了 PCNW 中的光吸收可以通过工程光耦合进行显着调整，这主要是由于泄漏模式共振的重塑和增强。PCNW 的光电流比一对未耦合的 NW 显着提高了 24.1%，比裸 NW 提高了 28.2%。这项工作提供了一种基于光耦合谐振结构增加光吸收的实用方法。