초록 |
Bulk heterojunction polymer solar cells (BHJ PSCs) and all-polymer solar cells (BHJ all-PSCs) have received great amount of interest in organic electronic applications due to their unique features such as flexibility, fine tuning of optoelectronic properties and large area application. We have developed two new series of fluorine containing π-conjugated polymers. Especially, the fluorinated alkoxyphenylthiophene based 2D π-conjugated polymers owns good compatibility with n-type polymers in all-PSCs and delivered a maximum PCE of 7.3% in inverted all-PSCs. In addition, we designed and synthesized a new efficient solution processable electron injection layer (EIL) PO-TAZ based on 1,3,5-triazine moiety. The application of PO-TAZ as an EIL in inverted PSCs delivered a high PCE of 10% with enhanced device stability. |