摘要
结合太阳能光谱对β-FeSi2薄膜的光子吸收系数进行了整理分析,对β-FeSi2薄膜太阳能电池的吸收层厚度进行了分析和理论计算。结果表明,在理想高质量β-FeSi2薄膜的条件下,为获得90%的太阳能辐射吸收率,β-FeSi2薄膜太阳能电池的吸收层厚度至少在200 nm以上,其最佳厚度区间为200~250 nm,此计算结果与报道的实验结果一致。同时,获得了反映β-FeSi2薄膜太阳能电池的吸收层厚度与光子波长之间关系的计算公式。
Combined with the solar spectrum,the photon absorption coefficient of the β-FeSi2 thin film has been analyzed,and then the thickness of the absorption layer of β-FeSi2 thin film solar cell has been analyzed and theoretically calculated.The results show that,under the condition of the β-FeSi2 thin film with high quality,when the optical absorption efficiency of the solar energy radiation reaches 90%,the absorption layer thickness of the β-FeSi2 thin film solar cell is at least 200 nm and the best thickness range is from 200 to 250 nm.The calculation result has been verified by some relative experimental studies.At the same time,the formula for the relation between the absorption layer thickness of the β-FeSi2 thin film solar cell and the solar photon wavelength has been obtained.
出处
《光学学报》
EI
CAS
CSCD
北大核心
2011年第5期272-276,共5页
Acta Optica Sinica
基金
国家自然科学基金(60566001
60766002)
科技部国际合作重点项目(2008DFA52210)
贵州省信息产业厅项目(0831)资助课题
关键词
薄膜
厚度
吸收层
太阳能电池
thin films
thickness
absorption layer
solar cell
