Order Code: M2049A1
MSDS sheet


(excluding Taxes)


PBDD4T is now available, featuring:

  • High purity and high molecular weight (PBDD4T is purified by Soxhlet extraction with methanol, hexane and chloroform under an argon atmosphere)
  • Batch-specific GPC data (so you have confidence in what you are ordering. Also, GPC data is always convenient for your thesis and publications)
  • Large-quantity orders (so you can plan your experiments with polymers from the same batch)


Batch Quantity Price
M2049A1 100 mg £315
M2049A1 250 mg £620
M2049A1 500 mg £1098.1
M2049A1 1 g £1976.6
M2049A1 5 - 10 g* Please enquire

 *for 5-10 grams order quantity, the lead time is 4-6 weeks.

Batch details

Batch Mw Mn PDI Stock Info
M2049A1 112,851 49,310 2.29 in stock


General Information

Full name Poly[[5,​7-​bis(2-​ethylhexyl)​-​4,​8-​dioxo-​4H,​8H-​benzo[1,​2-​c:4,​5-​c']​dithiophene-​1,​3-​diyl]​[3,​3'''-​bis(2-​ethylhexyl)​[2,​2':5',​2'':5'',​2'''-​quaterthiophene]​-​5,​5'''-​diyl]​]
Synonyms PBT1, BDD4T
Chemical formula (C58H74O2S6)n
CAS number 1439937-09-3
Solubility Chloroform, chlorobenzene and dichlorobenzene
HOMO / LUMO HOMO = -5.30 eV, Eg = 1.76 eV [1]
Classification / Family Polythiophenes, Organic n-type semiconducting materials, Organic photovoltaics, Polymer solar cells, Tandem solar cells, Electron-acceptor polymers, OFETs, Perovskite solar cells.
Solubility Soluble in chloroform, chlorobenzene, dichlorobenzene
Chemical structure of PBDD4T; Chemical formula: (C58H74O2S6)n.


As a family member of polythiophenes, PBDD4T has a backbone consisting of repeating benzodithiophene-4,8-dione and α-quaterthiophene units. π electrons can be delocalized effectively through the alternative electron push−pull effect, resulting a low band-gap polymer. Also, with four ethylhexyl branched side chains, the polymer is more soluble in most of organic solvents.

We also have PBDD4T-2F available which allows fluorine-fluorine interaction at the polymer back-bone structure for device film morphology control. Both PBDD4T and PBDD4T-2F are used for highly efficient fullerene and non-fullerene including such as ITIC and P(NDI2OD-T2F) as acceptors for OPV devices.

Literature and Reviews

  1. A Fluorinated Polythiophene Derivative with Stabilized Backbone Conformation for Highly Efficient Fullerene and Non-Fullerene Polymer Solar Cells, S. Zhang et al., Macromolecules, 49 (8), 2993–3000 (2016); DOI: 10.1021/acs.macromol.6b00248.
  2. Molecular Design toward Efficient Polymer Solar Cells with High Polymer Content, D. Qian et al., J. Am. Chem. Soc., 2013, 135 (23), 8464–8467 (2013); DOI: 10.1021/ja402971d