Silicon nitride as antireflection coating to enhance the conversion efficiency of silicon solar cells

Authors : Rajinder SHARMA

Pages : 350-355

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Publication Date : 0000-00-00

Article Type : Research Paper

Abstract : The aim of this work is to investigate the effect of single and double layer antireflection coating insert ignore into journalissuearticles values(ARC); on the performance of silicon solar cells. In this regard, various previous works on single and double layer ARCs have been consulted. Silicon nitride insert ignore into journalissuearticles values(Si 3 N 4 ); has been used as ARC material because of its varying refractive index insert ignore into journalissuearticles values(1.8-3.0);. Numerical calculations have been performed to obtain the reflectance for single and double layer Si 3 N 4 using the transfer matrix method. Double layer antireflection coating insert ignore into journalissuearticles values(DLARC); of Si 3 N 4 is found to have significant advantages over single layer antireflection coating insert ignore into journalissuearticles values(SLARC);. Calculated reflectances have been further used in the PC1D simulator as external reflectance files to study the performance of a silicon solar cell. As a result of the simulation, the reflectance is found to reduce from >30% to <2% with short circuit current of 3.86 mA/cm 2 and conversion efficiency of 20.22% for DLARC. Results obtained for DLARC were further compared with a reference cell insert ignore into journalissuearticles values(without ARC);, a cell with SLARC, and a cell with zero reflectance on the front surface.
Keywords : Antireflection coating, PC1D, solar cell, reflectance, external quantum efficiency, conversion efficiency