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PBT1, for highly efficient OPV devices
High purity and available online for priority dispatch
As a family member of polythiophenes, PBT1 (also known as 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 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
MSDS Documentation
PBDD4T MSDS SheetPricing
| 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 |
Literature and Reviews
- 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.
- 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.
- 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.
To the best of our knowledge the information provided here is accurate. The values provided are typical at the time of manufacture and may vary over time and from batch to batch. Products may have minor cosmetic differences (e.g. to the branding) compared to the photos on our website. All products are for laboratory and research and development use only.