Light trapping by direction-dependent light transmission in front-surface photonic nanostructures
Light trapping by direction-dependent light transmission in front-surface photonic nanostructures
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DOI：
10.7567/apex.7.122301
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发表时间：
2014-11
影响因子：
2.3
通讯作者：
T. Tayagaki;Yuko Kishimoto;Y. Hoshi;N. Usami
中科院分区：
文献类型：
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作者：
T. Tayagaki;Yuko Kishimoto;Y. Hoshi;N. Usami
前表面光子纳米结构有助于减少反射损失和光捕获，以增加太阳能电池中的光吸收。我们研究了亚波长光子纳米结构对薄膜晶体硅太阳能电池光捕获的影响。我们澄清了，即使散射光的角度分布是小的情况下的朗伯散射相比，光捕获增强的表面光子纳米结构的深度，这源于在表面光子纳米结构中的方向相关的光传输的增加。我们的研究结果表明，这种方向相关的光传输有助于薄膜太阳能电池中先进的光子管理。
Front-surface photonic nanostructures contribute both reduced reflection loss and light trapping to increase optical absorption in solar cells. We investigated the effect of sub-wavelength photonic nanostructures on light trapping in thin-film crystalline silicon solar cells. We clarified that, even though the angle distribution of scattered light is small compared with that in the case of Lambertian scattering, light trapping enhances with increasing depth of the surface photonic nanostructure, which originates from the direction-dependent light transmission in the surface photonic nanostructure. Our findings indicate that this direction-dependent light transmission contributes to the advanced photon management in thin-film solar cells.