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Product Code M2260A1
Price £249.00

PTO2 is an alternating wide band-gap copolymer with electron-donating benzodithiophene (BDT) and  electron-withdrawing thiophene carboxylate ester as the main backbone units. PTO2 enjoys good solubility in non-halogenated solvents, i.e. xylenes and THF.

With an efficient charge generation at a low driving force, an efficiency of 14.7% was achieved in a single-junction OPV by using polymer donor PTO2 and a nonfullerene acceptor IT-4F.

PTO2 is considered as good replacement for PBDB-T-2F (PM6) or PTB7-Th for it similar but simpler structure, while maintaining great device performance efficiencies at lower costs.

PClTO2, a chlorine version of PTO2, is also available to our customers. Please refer to our collection of green energy materials for non-halogenated solvents processing choice of non-fullerene acceptors (NFAs).


Device structure: ITO/PEDOT:PSS (10 nm)/PTO2:ITIC-4F (1:1, 100 ± 5nm)/PFN-Br (5 nm)/Al (80 nm)

Thickness (nm) VOC (V) JSC (mA cm-2) FF (%) PCE (%)
100 0.91 21.5 75.0 14.7

Luminosyn™ PTO2

Luminosyn™ PTO2 is now available.

High purity
PBTO2 is purified by Soxhlet extraction with methanol, hexane and chlorobenzene under an argon atmosphere

Batch-specific GPC data
Batch specific GPC data is always available for your thesis or publication

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

General Information

Full name Poly[(2,6-(4,8-bis(5-(2-ethylhexyl)thiophen-2-yl)-benzo[1,2-b:4,5-b’]dithiophene))-alt-(2,2-ethyl-3(or4)-carboxylate-thiophene)]
Synonyms PE12, PFTO2
Chemical formula (C41H44F2O2S5)n
CAS number n.a.
HOMO / LUMO HOMO = -5.56 eV, LUMO = -3.67 eV [2]
Solubility THF, o-xylene, chloroform, chlorobenzene and dichlorobenzene 
Processing solvent THF, o-xylene, chloroform, chlorobenzene and dichlorobenzene 
Classification / Family Organic semiconducting materials, Wide band-gap polymers, Organic Photovoltaics, Polymer solar cells, NF-PSCs, All-polymer solar cells (all-pscs), Green energy materials.

Chemical Structure

chemical structure of pto2 and solubility in THF and o-xylenen

Chemical structure of PTO2 (PE12) and its solubility in THF and o-xylene.

    MSDS Documentation

    PTO2 MSDSPTO2 MSDS sheet


    Batch Quantity Price
    M2260A1 100 mg £249.00
    M2260A1 250 mg £498.00
    M2260A1 500 mg £889.00
    M2260A1 1 g £1590.00
    M2260A1 5 g / 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
    M2260A1 63,527 29,379 2.16 In stock

    Literature and Reviews

    1. Achieving Over 15% Efficiency in Organic Photovoltaic Cells via Copolymer Design, Y. Cui et al., Adv. Mater., 31 (14), 1808356 (2019); DOI: 10.1002/adma.201808356.
    2. Wide bandgap polymer donors for high efficiency non-fullerene acceptor based organic solar cells, K. He et al., Mater. Adv., 2, 115 (2021); DOI: 10.1039/d0ma00790k.
    3. 14.7% Efficiency Organic Photovoltaic Cells Enabled by Active Materials with a Large Electrostatic Potential Difference, H. Yao et al., J. Am. Chem. Soc., 141, 19, 7743–7750 (2019); DOI: 10.1021/jacs.8b12937.

    To the best of our knowledge the information provided here is accurate. However, Ossila assume no liability for the accuracy of this page. The values provided are typical at the time of manufacture and may vary over time and from batch to batch. All products are for laboratory and research and development use only, and may not be used for any other purpose including health care, pharmaceuticals, cosmetics, food or commercial applications.

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