锥型亚波长光栅在薄膜晶硅电池中的吸收增强效应分析
Absorption Enhancement Induced by Nanocone Grating in Si Thin Film Solar Cells
查看参考文献23篇
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文摘
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基于严格耦合波理论，从反射率、吸收增强因子、光生载流子几率和理想光电转换效率几个方面模拟分析了不同锥型亚波长光栅对1μm厚晶硅电池产生的影响。模拟结果得出：在相同光栅高度下，虽然小周期(P=100nm)锥形亚波长光栅的表面反射率低于大周期(P=500nm)结构的表面反射率，但是大周期锥形亚波长光栅薄膜晶硅电池的光生载流子几率和理想光电转换效率高于小周期结构的相应值，且这种区别随着光栅高度增加而增加。在AM1.5D太阳光谱下，最优化的大周期光栅使得薄膜晶硅电池光生载流子几率和理想效率增加1.4倍和1.65倍，而最优化的小周期光栅只能分别增加0.54倍和0.48倍。 |
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其他语种文摘
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Broadband absorption enhancement effect induced by nanocone grating in 1 μm thick Si solar cells has been numerically investigated by rigorous coupled-wave analysis method.Even though the great antireflection performance has been achieved in the nanocone grating of P=100 nm,the higher optical generation rate and ultimate efficiency are achieved in the solar cell with nanocone grating of P=500 nm and H=350 nm,which is 1.4 times and 1.65 times higher than that in planar Si. |
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来源
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激光与光电子学进展
,2012,49(4):043101-1-043101-6 【扩展库】
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关键词
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光电子学
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吸收增强
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严格耦合波理论
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太阳电池
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宽谱减反
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地址
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1.
上海大学物理系, 上海, 200444
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中国科学院苏州纳米技术与纳米仿生研究所纳米器件及相关材料研究部, 江苏, 苏州, 215123
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语种
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中文 |
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文献类型
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研究性论文 |
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ISSN
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1006-4125 |
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学科
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能源与动力工程 |
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基金
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国家教育部留学回国人员科研启动基金
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江苏省科技支撑-工业项目资助课题
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文献收藏号
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CSCD:4514719
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