In situ performance and stability tests of large-area flexible polymer solar cells in the 35-km stratospheric environment  

作　　者：Zihan Xu Guoning Xu Qun Luo Yunfei Han Yu Tang Ying Miao Yongxiang Li Jian Qin Jingbo Guo Wusong Zha Chao Gong Kun Lu Jianqi Zhang Zhixiang Wei Rong Cai Yanchu Yang Zhaojie Li Chang-Qi Ma 

机构地区：[1]i-Lab&Printable Electronic Center,Suzhou Institute of Nano-Tech and Nano-Bionics,Chinese Academy of Sciences,Suzhou 215123,China [2]School of Nano-Tech and Nano-Bionics,University of Science and Technology of China,Hefei 230027,China [3]Aerospace Information Research Institute,Chinese Academy of Sciences,Beijing 100094,China [4]CAS Key Laboratory of Nanosystem and Hierarchical Fabrication,National Center for Nanoscience and Technology,Beijing 100190,China [5]University of Chinese Academy of Sciences,Beijing 100049,China

出　　处：《National Science Review》2023年第4期145-153,共9页国家科学评论（英文版）

基　　金：the National Natural Science Foundation of China(22135001 and 22075315);the Youth Innovation Promotion Association of the Chinese Academy of Sciences(2019317);the Scientific Experimental System in Near Space of the Chinese Academy of Sciences(XDA17020304)。

摘　　要：Flexible organic solar cells(FOSCs)are one of the most promising power sources for aerospace aircraft due to their atractive advantages with high power-per-weight ratio and excellent mechanical flexibility.Understanding the performance and stability of high-performance FOSCs is essential for the further development of FOSCs for aerospace applications.In this paper,after systematic investigations on the performance of the state-of-the-art high-performance solar cells under thermal cycle and intensive UV irradiation conditions,in situ performance and stability tests of the solar cells in the 35 km stratospheric environment were carried out through a high-altitude balloon uploading.The encapsulated FOSCs with an area of 0.64 cm^(2)gave the highest power density of 15.26 mW/cm^(2)and an efficiency over 11%,corresponding to a power-per-weight ratio of over 3.32 k W/kg.More importantly,the cells showed stable power output during the 3-h continuous flight at 35 km and only 10%performance decay after return to the lab,suggesting promising stability of the FOSCs in the stratospheric environment.

关 键 词：flexible organic solar cells stratospheric environment 35-km altitude thermal cycle reliability 

分 类 号：TM912[电气工程—电力电子与电力传动]