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首页> 美国卫生研究院文献>Scientific Reports >Theoretical design of multi-colored semi-transparent organic solar cells with both efficient color filtering and light harvesting
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Theoretical design of multi-colored semi-transparent organic solar cells with both efficient color filtering and light harvesting

机译：具有高效滤色和光收集功能的多色半透明有机太阳能电池的理论设计

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Solar cells incorporated with multi-coloring capability not only offer an aesthetic solution to bridge the gap between solar modules and building decorations but also open up the possibility for self-powered colorful display. In this paper, we proposed a multi-colored semi-transparent organic solar cells (TOSCs) design containing metallic nanostructures with the both high color purity and efficiency based on theoretical considerations. By employing guided mode resonance effect, the multi-colored TOSC behave like an efficient color filter that selectively transmits light with the desired wavelengths and generates electricity with light of other wavelengths. Broad range of coloring and luminosity adjusting for the transmission light can be achieved by simply tuning the period and the duty cycle of the metallic nanostructures. Furthermore, accompanying with the efficient color filtering characteristics, the optical absorption of TOSCs was improved due to the marked suppression of transmission loss at the off-resonance wavelengths and the increased light trapping in TOSCs. The mechanisms of the light guiding in photoactive layer and broadband backward scattering from the metallic nanostructures were identified to make an essential contribution to the improved light-harvesting. By enabling efficient color control and high efficiency simultaneously, this approach holds great promise for future versatile photovoltaic energy utilization.
机译：具有多种着色功能的太阳能电池不仅提供了一种美观的解决方案，以弥合太阳能电池组件与建筑物装饰之间的差距，而且还为自供电式彩色显示器打开了可能性。在本文中，基于理论考虑，我们提出了一种多色半透明有机太阳能电池（TOSC）设计，该设计包含具有高色纯度和高效率的金属纳米结构。通过采用引导模式共振效应，多色TOSC的行为就像高效的彩色滤光片，它可以选择性地透射具有所需波长的光，并与其他波长的光一起发电。通过简单地调整金属纳米结构的周期和占空比，可以实现对透射光的宽范围的着色和亮度调节。此外，伴随着有效的滤色特性，由于显着抑制了非共振波长处的传输损耗以及增加了TOSC中的光捕获，TOSC的光吸收得以改善。确定了光敏层中的光导和来自金属纳米结构的宽带向后散射的机制，为改进光收集做出了重要贡献。通过同时实现高效的色彩控制和高效率，这种方法对于未来的多功能光伏能源利用具有广阔的前景。

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