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Product Code M2049A1-100mg
Price £420 ex. VAT

PBT1, for highly efficient OPV devices

High purity and available online for priority dispatch


Specifications | Pricing and Options | MSDS | Literature and Reviews


As a family member of polythiophenes, PBT1 (also known as PBDD4T), CAS number 1439937-09-3, 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 OPV devices using fullerenes and non-fullerenes such as ITIC and P(NDI2OD-T2F) as acceptors.

Luminosyn™ PBT1

Luminosyn™ PBT1 is now available.

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
Have confidence in what you are ordering; batch-specific GPC data for your thesis or publications

Large quantity orders
Plan your experiments with confidence with polymers from the same batch

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 (solution processing solvent chlorobenzene or 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, All-polymer solar cells.
Solubility Soluble in chloroform, chlorobenzene, dichlorobenzene

Chemical Structure


pbdd4t, PBT1, BDD4T chemical structure
Chemical structure and product image of PBDD4T

Pricing


Batch Quantity Price
M2049A1 100 mg £420
M2049A1 250 mg £800
M2049A1 500 mg £1450
M2049A1 1 g £2600
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

MSDS Documentation


PBDD4T MSDSPBDD4T MSDS Sheet

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.
  3. Toward reliable and accurate evaluation of polymer solar cells based on low band gap polymers, L. Ye et al., J. Mater. Chem. C, 3, 564-569 (2015); DOI: 10.1039/C4TC02449D.
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