• 文献标题:   Efficient and stable flexible perovskite solar cells based on graphene-AgNWs substrate and carbon electrode without hole transport materials
  • 文献类型:   Article
  • 作  者:   JIN JJ, LI JH, TAI QD, CHEN Y, MISHRA DD, DENG WQ, XIN J, GUO SY, XIAO BC, WANG XB
  • 作者关键词:   flexible perovskite solar cell, hole transport layerfree, grapheneagnws flexible substrate, carbon electrode, stability
  • 出版物名称:   JOURNAL OF POWER SOURCES
  • ISSN:   0378-7753 EI 1873-2755
  • 通讯作者地址:  
  • 被引频次:   36
  • DOI:   10.1016/j.jpowsour.2020.228953
  • 出版年:   2021

▎ 摘  要

Carbon electrode-based hole transport layer-free perovskite solar cells (C-PSCs) are widely recognized as a competitive candidate towards practical applications, due to their advantages of low-cost, easy-fabrication, and long-term stability. However, fully low-temperature preparation of this type of solar cells on flexible substrates remains a huge challenge. Here, the all carbon electrode-based flexible C-PSCs with the structure of polyethylene terephthalate (PET)/graphene-silver nanowires (graphene-AgNWs)/SnO2/CH3NH3PbI3/Carbon are successfully prepared by low-temperature solution process. By optimizing the fabrication condition, an optimal efficiency of 9.73% is obtained, which is the highest value reported so far for flexible C-PSCs. Meanwhile, these flexible devices demonstrate superior mechanical robustness in comparison with their counterparts fabricated on flexible indium tin oxide (ITO)/PET substrates as well as excellent long-term durability. The present study can provide a simple way to fabricate low cost, highly efficient and highly stable perovskite solar cells for various applications.