大面积、高性能柔性 GaInP/GaAs/InGaAs叠层太阳电池的制备
投稿时间:2018-01-26  修订日期:2018-02-08  点此下载全文
引用本文:
摘要点击次数: 278
全文下载次数: 
作者单位E-mail
张梦炎 华东师范大学信息科学技术学院电子工程系 mengyanzhang@126.com 
郭振 中国人民解放军军事科学院  
孙利杰 上海空间电源研究所 空间电源技术国家重点实验室 sunlijielu@163.com 
陈杰 上海空间电源研究所 空间电源技术国家重点实验室 cj11271127@163.com 
基金项目:上海市青年科技启明星计划项目(14QB1402800)
中文摘要:柔性高效III-V族多结太阳电池正在被开发、应用于无人机、可穿戴设备和空间能源等领域。采用MOCVD技术在GaAs衬底上制备太阳电池外延层,之后通过低温键合和外延层剥离方法将外延层转移到柔性衬底上。通过外延层剥离设备设计和大量参数优化实验,实现了GaAs太阳电池结构从四英寸砷化镓晶圆上的有效分离,且不产生缺陷并保持原有的性能。近期,在50微米聚酰亚胺薄膜上制备的30cm2大面积柔性GaInP/GaAs/InGaAs 三结太阳电池实现了31.5%的转换效率(AM0光谱),其中开路电压3.01 V,短路电流密度16.8 mA/cm2,填充因子0.845。由于采用了轻质的聚酰亚胺材料,所得到的柔性太阳电池面密度仅为168.5 g/m2,比功率高达2530 W/kg。
中文关键词:太阳电池,柔性,高效率,砷化镓,外延层剥离
 
Preparation of large area and high performance flexible GaInP/GaAs/InGaAs tandem solar cells
Abstract:Flexible high-efficiency III-V multijunction solar cells are being developed for use in unmanned Aerial Vehicles (UAVs), wearable devices and space applications. The solar cell epitaxial layers are grown on GaAs substrate by metalorganic chemical vapor deposition (MOCVD) and then are transferred to flexible substrates by cold-bonding and epitaxial lift-off process (ELO). Through the design of ELO apparatus and a large number of experiments on the optimal parameter, GaAs solar cell structure can be effectively separated from 4-inch GaAs wafer without defects and degradation in performance. Recently, 30cm2 large area flexible GaInP/GaAs/InGaAs 3-junciton solar cells on 50 μm polyimide film achieved a 1-sun, AM0 conversion efficiency of 31.5% with an open-circuit-voltage of 3.01 V, a short-circuit current-density of 16.8 mA/cm2, and a fill factor of 0.845. By using the very light PI substrate, the unit weight of the solar cell is only 168.5 g/m2 and the specific power is up to 2530 W/kg.
keywords:Solar cells, Flexible, high-efficiency, GaAs, epitaxial lift-off
查看全文  查看/发表评论  下载PDF阅读器

版权所有:《红外与毫米波学报》编辑部