CHEN Hong-Jun, LU Hui-Dong, CHENG Xue-Zhen. Back Reflectors of Thin-film Silicon Solar Cells Consisting of One-dimensional Diffraction Gratings and One-dimensional Photonic Crystal[J]. Chinese Journal of Luminescence, 2012,(6): 633-639
CHEN Hong-Jun, LU Hui-Dong, CHENG Xue-Zhen. Back Reflectors of Thin-film Silicon Solar Cells Consisting of One-dimensional Diffraction Gratings and One-dimensional Photonic Crystal[J]. Chinese Journal of Luminescence, 2012,(6): 633-639 DOI: 10.3788/fgxb20123306.0633.
We designed a type of reflector that consisted of one-dimensional diffraction gratings and one-dimensional photonic crystal. It can be used for thin-film silicon solar cells. The structure parameters were optimized by Legendre polynomial expansion method
and the reflectivity at the range of 400~1 200 nm was calculated. Under the high reflectivity one-dimensional photonic crystal
the propagation path of the photon can be extended and absorbed in the battery. The results show that the diffraction grating and a back reflector in the photonic crystal structure are efficient at the range of 750~1 100 nm. Back-reflection layer can greatly improve the light harvesting capacity and enhance the conversion efficiency of solar cells.
关键词
光子晶体衍射光栅硅薄膜太阳能电池反射率
Keywords
photonic crystaldiffraction gratingsilicon thin film solar cellsreflectivity
references
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