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Ossila European Fulfilment Ltd. Qualifying orders ship free worldwide! Fast, secure, and backed by the Ossila guarantee. It looks like you are visiting from , click to shop in . Orders to Europe are processed by Ossila European Fulfilment Ltd.. Spend or more for FREE tracked shipping to , normally . For more information, please see our worldwide shipping page. Tracked large item shipping to from . All other products ship free with the purchase of an Ossila Glove Box. Make sure your lab is fully equipped and stock up on high-quality materials, accessories, and consumables with our large order discounts. Spend over £8,000 for an 8% discount or spend over £10,000 for a 10% discount. PffBT4T-2OD (PCE11) is a low band-gap (1.65 eV) semiconducting polymer for organic photovoltaics (OPVs), which has reached power conversion efficiencies (PCEs) approaching 11% [1]. These efficiencies are a result of the high crystallinity of the polymer, providing excellent hole transport mobilities on the order of 10-2 cm2V-1s-1, and the ability to use a thick active layer, resulting in improved light absorption.The size and position of the alkyl chains of PffBT4T-2OD are critical to its temperature dependant aggregation properties, enabling control over the aggregation and crystallisation of the polymer to produce an efficient donor:acceptor film morphology.Polymer PCE11 was targeted by reacting 4,7-bis(5-bromo-4-(2-octyldodecyl)thiophen-2-yl)-5,6-difluorobenzo[c][1,2,5]-thiadiazole with 2,5-bis(trimethylstannyl)thieno[3,2-b]thiophene engaging Stille Coupling reaction.PCE11 (PffBT4T-2OD) synthesis with 4,7-bis(5-bromo-4-(2-octyldodecyl)thiophen-2-yl)-5,6-difluorobenzo[c][1,2,5]-thiadiazole with 2,5-bis(trimethylstannyl)thieno[3,2-b]thiophene as starting materials engaging Stille Coupling reaction.General InformationFull namePoly[(5,6-difluoro-2,1,3-benzothiadiazol-4,7-diyl)-alt-(3,3’’’-di(2-octyldodecyl)-2,2’;5’,2’’;5’’,2’’’-quaterthiophen-5,5’’’-diyl)]Solubility/processing solventsDichlorobenzene or Chlorobenzene+dichlorobenzene (1:1 v/v) at elevated temperature ca. 110 °CClassification / FamilyBenzothiadiazole, Fluorinated benzothiadiazole, Heterocyclic five-membered ring, Organic semiconducting materials, Low band gap polymers, Organic Photovoltaics, Polymer Solar CellsChemical StructureChemical structure and product image of PCE11 (PFFBT4T-2OD)Device Structure(s)The structure of the high-performance (10 - 11%) devices was:ITO / ZnO / PffBT4T-2OD:PC70BM (200 – 300 nm) / MoO3 or V2O5 (20 nm) / Al (100 nm)PffBT4T-2OD:PC70BM solution details:Blend ratio: 1:1.2,Polymer concentration: 9 mg/ml,Solvent: 1:1 blend of chlorobenzene and dichlorobenzene,Additive: 3% diiodooctane,Heating: 85°C for dissolution,It is important to note that this solution (and the substrate being deposited onto) must be heated for spin casting, with the ideal temperature being 60 – 80°C. It is reported that a solution and substrate pre-heating temperature of 110°C should be used to allow for cooling that will occur before deposition.Literature and ReviewsAggregation and morphology control enables multiple cases of high-efficiency polymer solar cells, Y. Liu, et al., Nat. Comm., 5, 5293 (2014)High-efficiency non-fullerene organic solar cells enabled by a difluorobenzothiadiazole-based donor polymer combined with a properly matched small molecule acceptor, J. Zhao et al., Energy Environ. Sci., 8, 520-525 (2015)MSDS DocumentationPCE11 (PffBT4T-2OD) MSDS sheetPricing 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. Timed Dispatch Available Orders are being processed and dispatched on a daily basis.Customers who are not currently able accept delivery can request that we hold dispatch until a convenient date. Read more... The Ossila Guarantee Worldwide ShippingFast Secure DispatchQuality AssuredClear Upfront PricingLarge Order DiscountsExpert Support Read more... Trusted Worldwide\"We find Ossila\'s equipment very user-friendly and practical for our processes (solar cell research), and have used them since 2015. They provide good value for startups and SMEs, especially the...\" Dr Trevor McArdle Senior Research Scientist, Power RollRead more... The Ossila website uses cookies for core functionality. By continuing to browse the website you consent to the use of these cookies. More Information Accept Close
