摘要
柔性钙钛矿太阳能电池是当前最高效的柔性光伏技术之一,应用前景广阔.但器件的机械稳定性制约了其综合稳定性及安全可靠性.本文综合评述了近年来国内外研究团队围绕提升柔性钙钛矿太阳能电池机械性能的研究进展,从柔性基底优化、新型柔性透明电极开发、晶粒调控、晶界改性、界面工程等不同角度分析总结了柔性钙钛矿太阳能电池机械稳定性的优化方案及进展,对柔性钙钛矿太阳能电池的瓶颈及挑战进行了总结和建议.
Flexible solar cells hold broad application prospects in the fields of space energy,outdoor equipment,building integration photovoltaic,and wearable smart devices due to their light weight,flexible and wearable properties,which can be easily integrated with different surfaces with varied shapes.The high defect tolerance of perovskite materials allows functional doping for adjustable electrical and mechanical properties.Combined with its solution processability and excellent charge transport characteristics,the perovskite materials showed unique advantages as flexible devices.Currently,the reported efficiency of single-junction flexible perovskite solar cells has exceeded 20%,which is one of the most efficient flexible photovoltaic technologies.However,the intrinsic brittle ceramic properties of the perovskite polycrystalline film induced poor mechanical bending stability in devices,which is the bottleneck before its application.Meanwhile,the stress mismatch across multiple functional layers in devices during bending induce rapid device degradation,which restricts the overall stability and reliability of the flexible perovskite solar cells.Recently,great efforts have been made by researchers for high mechanical stability of flexible perovskite solar cells.This article comprehensively reviewed the research progress in improving the mechanical stability of flexible perovskite solar cells in recent years by optimizing flexible substrates,developing new flexible transparent electrodes,adjusting crystal grains,modifying grain boundaries and interfacial engineering.Besides,the challenges and prospection of flexible perovskite solar cells are also analyzed.
作者
康一飞
王安然
李容
宋益龙
董庆锋
Yi-fei Kang;An-ranWang;Rong Li;Yi-long Song;Qing-feng Dong(State Key Laboratory of Supramolecular Structure and Materials,College of Chemistry,Jilin University,Changchun 130012)
出处
《高分子学报》
SCIE
CAS
CSCD
北大核心
2021年第8期920-937,I0002,共19页
Acta Polymerica Sinica
基金
国家自然科学基金(基金号21875089)资助项目。
