PBDB-T-2Cl (also referred to as PCE14) is now available featuring:
- High purity - PBDB-T-2Cl is purified via Soxhlet extraction with acetone, hexane and chlorobenzene under an argon atmosphere
Large quantity orders - so you can plan your experiments with polymer from the same batch
||5 g / 10 g*
||Please contact us for details
*for 5 - 10 grams order quantity, the lead time is 4-6 weeks.
||PCE14, PBDB-T-Cl, PM7
|HOMO / LUMO
||HOMO = -5.52 eV, LUMO = -3.57 eV 
||Chloroform, chlorobenzene and dichlorobenzene
|Classification / Family
||Organic semiconducting materials, Medium bandgap polymers, Organic photovoltaics, Polymer solar cells, Perovskite solar cells, Hole-transport layer materials, NF-PSCs, All-polymer solar cells (all-PSCs).
PBDB-T-2Cl is part of the PBDB-T polymer family. It has a high OPV device performance, with reported efficiencies exceeding 12%. PSCs based on PBDB-T-2Cl as the donor and ITIC-2F as the acceptor have achieved a power conversion efficiency (PCE) of over 14% .
Compared to PBDB-T-2F, PBDB-T-2Cl showed slightly lower calculated HOMO levels. Although fluorine has greater electronegativity, it is believed that electron density can be delocalised more effectively to the chlorine atom than the fluorine atom on the BDT (benzodithiophene) backbone unit, resulting in a deeper HOMO energy level.
The device structure of the certified device was:
ITO / ZnO (30 nm) / PBDB-T-2Cl:ITIC-2F (100 nm) / MoO3 (10 nm) / Al (100 nm)
PBDB-T:ITIC-2F solution details:
- Blend ratio: 1:1
- Concentration: 20 mg/ml
- Solvent: Chlorobenzene
- Additive: 1% 1,8-Diiodooctane
Literature and Reviews
Chlorine substituted 2D-conjugated polymer for high-performance polymer solar cells with 13.1% efficiency via toluene processing, Q. Fan et al., Nano Energy 48, 413–420 (2018); doi: 10.1016/j.nanoen.2018.04.002.
Over 14% Efficiency in Polymer Solar Cells Enabled by a Chlorinated Polymer Donor, S. Zhang et al., Adv. Mater., 30, 1800868 (2018); DOI: 10.1002/adma.201800868.
Fluorination vs. chlorination: a case study on high performance organic photovoltaic materials, Y. Zhang et al., Sci. China Chem., 61 (10), 1328–1337 (2018); doi: 10.1007/s11426-018-9260-2.