空间用高效激光电池研究  

Research on high-efficiency laser cell for space

作　　者：张无迪 倪旺 王赫[1] 高鹏[1] ZHANG Wudi;NI Wang;WANG He;GAO Peng(Tianjin Institute of Power Sources,Tianjin 300384,China)

机构地区：[1]中国电子科技集团公司第十八研究所,天津300384

出　　处：《电源技术》2023年第8期1092-1094,共3页Chinese Journal of Power Sources

基　　金：国防科技重点实验室基金项目《面向无人值守节点的集成微能源技术》(61428040101)。

摘　　要：激光电池在空间无线能量传输领域有很大的应用前景,适合在空间无线传输中,作为能量接收器或信号接收器使用。根据空间应用场景,研制了针对808 nm波段激光的纵向串联2结薄膜激光电池。单体激光电池开路电压达到2.29 V,光电转换效率最高可达52%,电池面密度为0.03 g/cm^(2)。为进一步提升技术成熟度,满足空间实际应用,设计了内级联结构的下一代高效激光电池。该激光电池采用半导体异质集成工艺的金属图形键合技术,为横向纵向混合串联8结结构,预计单体激光电池开路电压超过8 V,光电转换效率突破55%。Laser cells have great application prospects in the field of space wireless energy transmission,and are suitable for use as energy receivers or signal receivers in space wireless transmission.According to the space application scenario,a 2-junction flexible laser cell for 808 nm laser was developed.For the single laser cell,the opencircuit voltage is 2.29 V,the photoelectric conversion efficiency is up to 52%,and the cell surface density is 0.03 g/cm^(2).In order to further improve the technical maturity and meet the practical application in space,the next generation of high-efficiency laser cells with internal cascade structure was designed.The laser cell adopted the metal pattern bonding technology of semiconductor heterogeneous integration technology,which is a transverse and longitudinal hybrid series 8-junction structure.It is expected that the opening voltage of the single laser cell will exceed 8 V,and the photoelectric conversion efficiency will exceed 55%.

关 键 词：激光电池 808 nm激光 多结 异质集成 

分 类 号：TM914[电气工程—电力电子与电力传动]