Presentation Information
[8a-S202-8]Improving efficiency and stability of non-fullerene inverted organic photovoltaics with solution processed hole transport layer
〇(M2)Karin Iwa1,2, Lulu Sun2, Kenjiro Fukuda2,3, Takao Someya2,4, Shinjiro Umezu1 (1.Waseda Univ., 2.RIKEN, 3.Univ. Osaka, 4.Tokyo Univ.)
Keywords:
organic photovoltaics,solution process,PEDOT:PSS
Achieving fully solution-processed non-fullerene inverted organic photovoltaics remains a challenge due to the difficulty of coating hole transport layers (HTLs) in solution process onto the liquid repellent non-fullerene active layer. Therefore, researching solution-based coating methods for each layer of organic photovoltaics is crucial for enabling large-area manufacturing in the future.
We have previously reported that PEDOT:PSS HTL can be formed uniformly on the non-fullerene active layer by reducing humidity during spin-coating. This presentation provides a more detailed comparison of the efficiency and stability among the devices with HTLs using different materials (PEDOT:PSS fabricated in the dried air, PEDOT:F, and molybdenum oxide). We will also discuss on the relationship between humidity and the film-forming properties of PEDOT:PSS.
We have previously reported that PEDOT:PSS HTL can be formed uniformly on the non-fullerene active layer by reducing humidity during spin-coating. This presentation provides a more detailed comparison of the efficiency and stability among the devices with HTLs using different materials (PEDOT:PSS fabricated in the dried air, PEDOT:F, and molybdenum oxide). We will also discuss on the relationship between humidity and the film-forming properties of PEDOT:PSS.