Theoretical analysis of performance improvement of thin film solar cells with two-dimensional photonic crystals and distributed Bragg reflector textured structures
作者： Gaige Zheng , Linhua Xu , Shixin Pei , Wei Su
DOI: 10.1016/J.OPTCOM.2013.08.005
关键词:
摘要: Abstract A new approach that incorporates two-dimensional photonic crystals (2D-PhCs) and distributed Bragg reflector (DBR) for light trapping to improve the performance of thin film solar cells (TFSCs) was theoretically demonstrated. With careful design optimization, presented light-trapping structure can lead a remarkable efficiency enhancement with very silicon active layers due significantly enhanced absorption. Rigorous coupled wave analysis (RCWA) simulations reveal absorption could be tuned by tailoring parameters PhC structure. In longer wavelength range (800 nm–1100 nm), also occur, which is important improving in TFSC. The designed back textured structures on electrode high scattering diffraction when hybrid provide phase difference π helps increase effective thickness TFSC results higher short circuit current. Besides, potential cell quantum (QE) estimated.
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