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GaAs基系Ⅲ-V族化合物太阳电池具有带隙最优、抗辐射能力强、高效率、高温稳定性好和机械强度高等优点,是目前高效太阳电池的研发重点。从异质结设计、多结结构设计、晶格匹配优化、光谱-能带匹配设计、掺N半导体材料及半导体键合工艺等方面,介绍了Ⅲ-V族高效多结太阳电池近年来的研究进展和关键技术,重点讨论了光谱匹配结构设计和半导体键合等新技术方法。采用半导体键合技术的四结聚光太阳电池最高效率已达46%。同时结合目前的技术现状,对其未来发展进行了展望。
GaAs-based III-V compound solar cells with the best band gap, radiation resistance, high efficiency, high temperature stability and high mechanical strength, is currently the focus of research and development of high efficiency solar cells. In this paper, the recent research on III-V high efficiency multi-junction solar cells is introduced from the aspects of heterojunction design, multi-junction structure design, lattice matching optimization, spectral-band matching design, N doped semiconductor materials and semiconductor bonding process Progress and key technologies, focusing on the spectral matching structure design and semiconductor bonding and other new technologies and methods. The highest efficiency of four junction concentrator solar cells using semiconductor bonding technology has reached 46%. At the same time, combined with the current status of technology, the future development of its prospects.