PBDB-T-2Cl

Description

** While supplies last

PBDB-T-2Cl has a similar UV-vis absorption spectrum as well as a similar bandgap than PBDB-T-2F.
PBDB-T-2Cl is used in high performance organic solar cells (PCE > 14%) when blended with non-fullerene acceptors such as ITIC-4F. [1] Indeed, PBDB-T-2Cl has shown a lower HOMO level that allows to obtain a high VOC while used with ITIC-4F acceptor to obtain a PCE of 14.4 %. This blend has also been tested on a 1 cm2 substrate and shown PCE of 11.5%.
This polymer has similar aggregation properties than its fluorinated counterpart. It is soluble in chlorinated solvents such as chloroform, chlorobenzene and o-DCB. It is also soluble in xylene.
References and literature:
[1] Zhang, S.; Qin, Y.; Zhu, J.; Hou, J. Adv. Mater. 2018, 30, 1800868

Technical specs

CATALOG NAME
PBDB-T-2Cl
Synonym
PM7
NAME
Poly[[4,8-bis[4-chloro-5-(2-ethylhexyl)-2-thienyl]benzo[1,2-b:4,5-b']dithiophene-2,6-diyl]-2,5-thiophenediyl[5,7-bis(2-ethylhexyl)-4,8-dioxo-4H,8H-benzo[1,2-c:4,5-c']dithiophene-1,3-diyl]-2,5-thiophenediyl]
CAS NUMBER
2239295-71-5
FORMULA
(C68H76Cl2O2S8)n
MW
70-100 kg/mol
HOMO
-5.52 eV
LUMO
-3.57 eV
Bandgap (optical)
1.79