基于Ⅲ-Ⅴ族材料制备的多结太阳电池由于优越的性能,在空间电源领域和地面聚光方面的应用越来越受到重视.介绍了多结太阳电池的高光电转换效率机理,并从材料选择、结构设计、优化生长工艺等方面讨论了研发Ⅲ-Ⅴ族高效多结太阳电池的实现方案和最新技术进展.重点探讨了采用GaInNAs(Sb)新材料、倒置生长、半导体键合等技术方法.其中,采用半导体键合技术制备的GaInP/GaAs//GaInAsP/GaInAs四结太阳电池光电转换效率为46％,也是目前实验室最高效率.此外,分析了Ⅲ-Ⅴ族高效多结太阳电池的发展方向,并对其前景进行了展望.
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