| Identification | Back Directory | [Name]
PM7 | [CAS]
2239295-71-5 | [Synonyms]
PM7
P141-2Cl
PBDB-T-2Cl/PM7
PBDB-T-Cl, PM7
PBDB-T-2Cl,PCE14
Poly[(2,6-(4,8-bis(5-(2-ethylhexyl-3-chloro)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)] | [Molecular Formula]
(C68H76Cl2O2S8)n |
| Hazard Information | Back Directory | [Description]
PBDB-T-2Cl, also known as PM7, 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% [2]. | [Uses]
High-Efficiency Organic Solar Cells (OPVs)
Polymeric donor material
LUMO=?3.57 eV
HOMO=?5.32 eV
OPV Device Performance :
PBDB-T-2Cl:IT-4F
Voc= 0.86V
Jsc= 21.46 mA/cm2
FF= 0.75
PCE=13.9%
PBDB-T-2Cl (or PM7) is a wide bandgap polymer donor (n-type semiconductor) containing chlorinated thienyl benzodithiophene (BDT-2Cl) used in high performance polymer solar cells (PSCs). PBDB-T-2Cl-based devices exhibit higher open circuit voltage (Voc) than the PBDB-T-2F-based devices, due to lower molecular energy levels of PBDB-T-2Cl, and leading to an outstanding power conversion efficiency of over 14%.
In general, chlorination is more effective than fluorination in downshifting the molecular energy levels and broadening the absorption spectra. |
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Ossila Limited
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