Auxiliary sequential deposition enables 19%-efficiency organic solar cells processed from halogen-free solvents.

ABSTRACT: High-efficiency organic solar cells are often achieved using toxic halogenated solvents and additives that are constrained in organic solar cells industry. Therefore, it is important to develop materials or processing methods that enabled highly efficient organic solar cells processed by halogen free solvents. In this paper, we report an innovative processing method named auxiliary sequential deposition that enables 19%-efficiency organic solar cells processed by halogen free solvents. Our auxiliary sequential deposition method is different from the conventional blend casting or sequential deposition methods in that it involves an additional casting of dithieno[3,2-b:2',3'-d]thiophene between the sequential depositions of the donor (D18-Cl) and acceptor (L8-BO) layers. The auxiliary sequen

SUBMITTER: Luo S 

PROVIDER: S-EPMC10618449 | biostudies-literature | 2023 Oct

REPOSITORIES: biostudies-literature