초록 |
We synthesized poly(styrenesulfonate) (PSS) copolymer, which is composed of PEDOT:PSS and tetrafluoropropylmethacylate (TFPMA) and then utilized the PEDOT:P(SS-co-TFPMA) as hole transport layer (HTL). By synthesizing a copolymer, the solution stability of PEDOT:P(SS-co-TFPMA) copolymer was stable than just mixing solution. For application in solar cell, the surface characteristics of the PEDOT:P(SS-co-TFPMA), including morphological structure, electronic energy-state, surface energy and composition were investigated. We found that PEDOT:P(SS-co-TFPMA) film showed high Work Function for good energy level alignment as HTL compared to pristine PEDOT:PSS film. |