1Department of Information and Communications, Gwangju Institute of Science and Technology, 1 Oryong-dong,Buk-gu, Gwangju 500-712, Korea.
Opt Lett. 2010 Feb 1;35(3):276-8. doi: 10.1364/OL.35.000276.
This study reports highly efficient light-absorbing structures based on submicrometer gratings (SMGs) for thin-film crystalline silicon solar cells. The integration of SMGs into the cell structure leads to superior broadband antireflection properties compared to conventional antireflection coatings. With careful design optimization, an improvement of the cell efficiency of nearly 25.1% was obtained compared to double-layer coated solar cells. Optimized SMG structures were fabricated on a silicon substrate using interference lithography and a lenslike shape transfer process. The fabricated SMG structures exhibited low reflectivity in the wavelength range of 300-1200 nm, indicating good agreement with the simulated results.
本研究报告了基于亚微米光栅 (SMG) 的高效吸光结构，用于薄膜晶体硅太阳能电池。将 SMG 集成到电池结构中，与传统的抗反射涂层相比，具有卓越的宽带抗反射性能。通过精心的设计优化，与双层涂层太阳能电池相比，电池效率提高了近 25.1%。使用干涉光刻和透镜状形状传递工艺在硅衬底上制造了优化的 SMG 结构。所制造的 SMG 结构在 300-1200nm 的波长范围内表现出低反射率，与模拟结果吻合良好。
