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中文摘要：
详细介绍了β-FeSi2的结构和β-FeSi2薄膜的物理特性，以及基于β-FeSi2薄膜的异质结在光电方面的应用。目前，基于β-FeSi2薄膜的异质结应用的研究主要集中在PL和EL等LED领域，而对其应用于太阳能电池方面的研究还很薄弱，所获得的光电转换效率最高是3．7％，远低于其16％～23％的理论值。
英文摘要：
β-FeSi2 thin film on both its crystal structure and physical properties is reviewed, and the applications of its heterojunction in the photovoltaic field are introduced in detail. Nowadays, the researchers＇ work has been only emphasized on its heterojunction applications in the field of LEDs, andthey haven＇t paid enough attention to its heterojunction applications in the field of the solar cell. The highest energy conversion efficiency of the solar cell obtained from the β-FeSi2 thin film is 3.7%, far less than its theory value 16%-23%.
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