Small molecular donor materials based on ß-ß-bridged BODIPY dimers with a triphenylamine or carbazole unit for efficient organic solar cells.
Dalton Trans
; 53(28): 11981-11994, 2024 Jul 16.
Article
in En
| MEDLINE
| ID: mdl-38963010
ABSTRACT
Herein, we have designed and synthesized two novel BODIPY dimer-based small molecules, denoted as ZMH-1 and ZMH-2, covalently linked and functionalized with triphenylamine (TPA) (ZMH-1) and carbazole (CZ) (ZMH-2) units as the electron donor at the 3- and 5-positions of the BODIPY core, respectively. Their optical and electrochemical properties were investigated. We have fabricated all small molecule bulk heterojunction organic solar cells using these BODIPY-based small molecules as electron donors along with fullerene derivative (PC71BM) and medium bandgap non-fullerene acceptor IDT-TC as electron acceptors. The optimized OSCs based on ZMH-1PC71BM, ZMH-2PC71BM, ZMH-1IDT-IC, and ZMH-2IDT-IC attain overall PCEs of 8.91%, 6.61%, 11.28%, and 5.48%, respectively. Moreover, when a small amount of PC71BM as guest acceptor is added to the binary host ZMH-1IDT-TC and ZMH-2IDT-TC, the ternary OSCs based on ZMH-1 and ZMH-2 reach PCEs of 13.70% and 12.71%, respectively.
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Language:
En
Journal:
Dalton Trans
/
Dalton trans (2003. Online)
/
Dalton transactions (2003. Online)
Journal subject:
QUIMICA
Year:
2024
Document type:
Article
Affiliation country:
China
Country of publication:
Reino Unido