CAJ | 학술논문

提高太阳能电池光电转换效率的一个重要途径就是提高它的光子吸收能力。在传统非晶硅薄膜太阳能电池中加入了金属光栅，设计出一种新的复合电池结构。基于严格耦合波分析矢量衍射理论计算了该结构的吸收光谱和增强因子；讨论了光栅宽度、入射光角度和入射光偏振态对吸收的影响。结果显示，设计的太阳能电池结构能够显著提高光的吸收率，在 TM 偏振光入射条件下，该结构的吸收增强因子最高可达40％；在其他偏振态光线入射时，其吸收增强因子也可达到16％左右。
제고태양능전지광전전환효솔적일개중요도경취시제고타적광자흡수능력。재전통비정규박막태양능전지중가입료금속광책，설계출일충신적복합전지결구。기우엄격우합파분석시량연사이론계산료해결구적흡수광보화증강인자；토론료광책관도、입사광각도화입사광편진태대흡수적영향。결과현시，설계적태양능전지결구능구현저제고광적흡수솔，재 TM 편진광입사조건하，해결구적흡수증강인자최고가체40％；재기타편진태광선입사시，기흡수증강인자야가체도16％좌우。
Enhancing optical absorption is an important way to improve the photoelectric conver-sion efficiency of solar cells .A new metal grating-based solar cell structure was designed .The absorption spectrum and enhancement factor were calculated by rigorous coupled wave analysis (RCWA) method .The influences on optical absorption induced by the grating width ,the an-gle and polarized states of the incident light were discussed .The results show that the optical absorption factor in the designed structure can be greatly enhanced up to 40% when the inci-dent wave is transverse magnetic (TM ) polarized ,and nearly 16% under other incident waves condictions .These indicates that the new solar cell structure can significantly improve the o-verall optical absorption compared to bare a-Si thin film solar cells .