Xu Zihan, Xu Guoning, Luo Qun, Han Yunfei, Tang Yu, Miao Ying, Li Yongxiang, Qin Jian, Guo Jingbo, Zha Wusong, Gong Chao, Lu Kun, Zhang Jianqi, Wei Zhixiang, Cai Rong, Yang Yanchu, Li Zhaojie, Ma Chang-Qi
i-Lab & Printable Electronic Center, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215123, China.
School of Nano-Tech and Nano-Bionics, University of Science and Technology of China, Hefei 230027, China.
Natl Sci Rev. 2022 Dec 15;10(4):nwac285. doi: 10.1093/nsr/nwac285. eCollection 2023 Apr.
Flexible organic solar cells (FOSCs) are one of the most promising power sources for aerospace aircraft due to their attractive 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, 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 gave the highest power density of 15.26 mW/cm and an efficiency over 11%, corresponding to a power-per-weight ratio of over 3.32 kW/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.
柔性有机太阳能电池（FOSCs）因其具有高功率重量比和出色的机械柔韧性等诱人优势，成为航空航天器最具潜力的电源之一。了解高性能FOSCs的性能和稳定性对于其在航空航天应用中的进一步发展至关重要。本文在对最先进的高性能太阳能电池在热循环和强紫外线照射条件下的性能进行系统研究之后，通过高空气球搭载对太阳能电池在35公里平流层环境中的性能和稳定性进行了测试。面积为0.64平方厘米的封装FOSCs给出了15.26毫瓦/平方厘米的最高功率密度以及超过11%的效率，对应的功率重量比超过3.32千瓦/千克。更重要的是，这些电池在35公里高度持续飞行3小时期间显示出稳定的功率输出，返回实验室后性能仅衰减10%，这表明FOSCs在平流层环境中具有良好的稳定性。
