• 文献标题:   Stabilized Preparation of Fiber-Shaped Perovskite Solar Cells with Ti and Graphene Substrates
  • 文献类型:   Article
  • 作  者:   MEI DQ, BAI B, QIU LL, CHEN L, XIE FQ, DU PF
  • 作者关键词:   ti wire, graphene fiber, twostep coating, flexible, perovskite solar cell
  • 出版物名称:   ACS APPLIED NANO MATERIALS
  • ISSN:  
  • 通讯作者地址:  
  • 被引频次:   2
  • DOI:   10.1021/acsanm.2c04550 EA DEC 2022
  • 出版年:   2022

▎ 摘  要

Organic-inorganic hybrid metal halide perovskite solar cells (PSCs) have made dramatic progress over the past few years. Fiber-shaped PSCs (FPSCs) extend the application of PSCs to wearable and portable electronics. The one-dimensional flexible structure of the fiber substrate and the high efficiency photoelectric conversion ability of the perovskite materials make FPSCs promising for energy applications. However, FPSCs have limited preparation methods and show poorer optoelectronic performance compared to conventional PSCs. In our work, we present a multiple quantitative coating preparation method, which was optimized by controlling the PbI2 concentration and the cycle number of coating process. We demonstrated the effectiveness of the methods in improving the film performance, with a photoelectric conversion efficiency (PCE) of 5.2% under air. The applicability of the multiple quantitative coating methods was studied by the FPSCs fabricated on reduced graphene fibers (rGFs), which present PCEs of about 1.5%. In addition, by extending the length of rGFs, the device performance was further improved. Thus, we demonstrated a stable fabrication method of FPSCs based on rGFs, which exhibited significant potential for using PSCs as a power source in wearable devices.