PBDB-T-2F
PhotovoltaicDescription
PM6 is the fluorinated derivative of the PBDB-T. Also known as PBDB-T-2F, the PM6 exhibited a strong crystallinity and mainly possesses a face-on packing, which is beneficial in OPV. Compared to PBDB-T, the HOMO level of PM6 is 0.22 eV lower, (-5.45 eV compare to -5.23 eV for PBDB-T) increasing the Voc in OPV.
PM6 is used in high performance organic solar cells (PCE > 16%), mainly in conjunction with non-fullerene acceptors, such as Y family as well as ITIC and its derivatives. [2,3]
When WS2 is used as the hole transport layer (to replace PEDOT:PSS), PM6 has also demonstrated PCE up to 13,5% with IT-4F and up to 17% with Y6. [4]
Cas no : 1802013-83-7
References and literature:
[1] Zhang, M.; Guo, X.; Ma, W.; Ade, H.; Hou, J., Adv.Mater. 2015, 27, 4655
[2] Cui, Y.; Yao, H.; Zhang, J.; Zhang, T.; Wang, Y.; Hong, L.; Xian, K.; Xu, B.; Zhang, S.; Peng, J.; Wei, Z.; Gao, F.; Hou, J., Nature Commun. 2019, 10, 2515
[3] Li, W.; Ye, L.; Li, S.; Yao, H.; Ade, H.; Hou, J.; Adv.Mater. 2018, 30, 1707170
[4] Lin, Y.; Adilbekova B.; Firdaus, Y.; Yengel, E.; Faber, H.; Sajjad, M.; Zhenf, X.; Yarali, E.; Seitkhan, A.; Bakr, O. M.; El-Labban, A.; Schwingenschlögl, U.; Tung, V.; McCulloch, I.; Laquai, F.; Anthopoulos, T. D. Adv.Mater.. 2019, 31, 1902965
Technical specs
CATALOG NAME
PBDB-T-2F
NAME
Poly[(2,6-(4,8-bis(5-(2-ethylhexyl-3-fluoro)thiophen-2-yl)-benzo[1,2-b:4,5-b’]dithiophene))-alt-(5,5-(1’,3’-di-2-thienyl-5’,7’-bis(2-ethylhexyl)benzo[1’,2’-c:4’,5’-c’]dithiophene-4,8-dione)]
Synonym
PM6
CAS NUMBER
1802013-83-7
FORMULA
(C68H76F2O2S8)n
MW
≥ 70 kg/mol
HOMO
-5.45 eV
LUMO
-3.65 eV