钙钛矿材料 DPP-DTT (high mobility p-type polymer)
Luminosyn™ DPP-DTT (also referred to as PDPP2T-TT-OD) is now available featuring: High molecular weight - higher molecular weight offers higher charge mobilityHigh purity - DPP-DTT is purified via Soxhlet extraction with methanol, hexane and chlorobenzene under an argon atmosphereBatch-specific GPC data - so you have confidence in what you are ordering. Also, GPC data is always convenient for your thesis and publicationsLarge quantity orders - so you can plan your experiments with polymer from the same batch 价格BatchQuantityPriceM315100 mg4800.45 M315250 mg8011.45M315500 mg12635.29M3151g20871.50M3152g36926.50*for 5 - 10 grams order quantity, the lead time is 4-6 weeks. Batch DetailsBatchMwMnPDIM314292,20074,9003.90 M315278,78176,3233.65 General InformationSynonymsPDBT-co-DTTPTT-DTDPPPDPP-DTTDPPT-TTDPP-TTTPDPP2T-TTPDPP2T-TT-ODDPPDTTPoly[2,5-(2-octyldodecyl)-3,6-diketopyrrolopyrrole-alt-5,5-(2,5-di(thien-2-yl)thieno [3,2-b]thiophene)]CAS number1260685-66-2 (1444870-74-9)Chemical formula(C60H88N2O2S4)nHOMO/LUMOHOMO = -5.2 eV, LUMO = -3.5 eV [2]SolubilityChloroform, chlorobenzene and dichlorobenzeneClassification/FamilyBithiophene, Thienothiophene, Organic semiconducting materials, Low band-gap polymers, Organic photovoltaics, Polymer solar cells, OFETs Chemical structure and product image of DPP-DTT, CAS No. 1260685-66-2. OFET and Sensing ApplicationsThe exceptional high mobility of this polymer of up to 10 cm2/Vs [2] via solution-processed techniques, combined with its intrinsic air stability (even during annealing) has made PDPP2T-TT-OD of significant interest for OFET and sensing purposes.While the highest mobilities require exceptional molecular weights of around 500 kD (and with commensurate solubility issues), high mobilities in the region of 1-3 cm2/Vs can still be achieved with good solution-processing at around 250 kD. As such, we have made a range of molecular weights available to allow for different processing techniques.In our own tests, we have found that by using simple spin-coating onto an OTS-treated silicon substrate (using our prefabricated test chips), high mobilities comparable to the literature can be achieved (1-3 cm2/Vs). Further improvements may also be possible with more advanced strain-inducing deposition techniques. Example OFET characteristics for DPP-DTT (M313) solution processed from chlorobenzene on a 300 nm SiO2 substrate treated with OTS. Output characteristic (top left), transfer curves (top right), mobility fitting (bottom left) and calculated mobility (bottom right). Photovoltaic ApplicationsAlthough shown as a promising hole-mobility polymer for OFETs, when used as the donor material in a bulk heterojunction photovoltaic (with PC70BM as the acceptor), initial efficiencies of 1.6% were achieved for DPP-DTT [3]. The low device metrics were attributed to poor film morphology. However, a higher efficiency of 6.9% was achieved by using thicker film (220 nm) [4].PDPP2T-TT-OD has also recently been used successfully as an active-layer dopant material in PTB7-based devices [5]. An improvement in device performance was observed, with average efficiencies increasing from 7.6% to 8.3% when the dopant concentration of DPP-DTT was 1 wt%. The use of DPP-DTT as a high-mobility hole-interface layer for perovskite hybrid devices has also been investigated [6].Synthetic routeDPP-DTT synthesis: DPP-DTT was synthesised by following the procedures described in [2] and [3] (please refer to the following references):With 2-thiophenecarbonitrile and dimethyl succinate as starting materials in t-amyl alcohol, it gave 3,6-Dithiophen-2-yl-2,5-dihydropyrrolo[3,4-c]pyrrole-1,4-dione. Alkylation of 3,6-Dithiophen-2-yl-2,5-dihydropyrrolo[3,4-c]pyrrole-1,4-dione with 2-octyldodecylbromide in dimethylformamide afforded 3,6-bis(thiophen-2-yl)-2,5-bis(2-octyldodecyl)pyrrolo[3,4-c]pyrrole-1,4(2H,5H)-dione. Further bromination gave 3,6-bis(5-bromothiophen-2-yl)-2,5-bis(2-octyldodecyl)pyrrolo[3,4-c]pyrrole-1,4(2H,5H)-dione (M1).Further reaction of M1 with 2,5-bis(trimethylstannyl)thieno[3,2-b]thiophene (M2) under Stille coupling conditions gave the target polymer DPP-DTT, which was further purified via Soxhlet extraction with methanol, hexane and then chloroform. 具体价格请咨询在线客服