服務(wù)熱線
18123966210
產(chǎn)品中心
當(dāng)前位置:首頁產(chǎn)品中心Ossila英國Ossila材料PCDTBT CAS:958261-50-2 Ossila材料M1311
產(chǎn)品簡介:英國Ossila材料PCDTBT CAS:958261-50-2 Ossila材料M1311英國Ossila材料、廠家直接訂貨、原裝正品、交期準(zhǔn)時、洽談?。。?/p>
產(chǎn)品型號:
更新時間:2023-04-02
廠商性質(zhì):代理商
訪問量:2002
0755-23003036
產(chǎn)品分類
PRODUCT CLASSIFICATION相關(guān)文章
RELATED ARTICLES只用于動物實(shí)驗(yàn)研究等
PCDTBT is now available featuring:
Full name | Poly[N-9'-heptadecanyl-2,7-carbazole-alt-5,5-(4',7'-di-2-thienyl-2',1',3'-benzothiadiazole)] |
Synonyms | PCDTBT |
CAS number | 958261-50-2 |
Chemical formula | (C43H47N3S3)n |
Molecular weight | See Batch Details for information |
HOMO / LUMO | HOMO = -5.4 eV, LUMO = -3.6 eV |
Solubility | Chloroform, chlorobenzene, dichlorobenzene and trichlorobenzene |
Classification / Family | Polycarbazoles, Heterocyclic five-membered ring, Organic semiconducting materials, Low band gap polymers, Organic photovoltaics, Polymer solar cells, OFETs and Perovskite solar cells |
PCDTBT for high performance organic photovoltaics and air stable OFETs and perovskite solar cells.
PCDTBT is one of the next generation donor materials developed for organic photovoltaics to produce better efficiencies and lifetimes. The key properties of PCDTBT result from the lower HOMO/LUMO levels which lead to advantages over standard organic photovoltaic materials of increased open circuit voltage, longer wavelength absorption and improved stability under ambient conditions.
The lower lying HOMO level of PCDTBT makes it much more stable under ambient conditions and therefore an ideal candidate to use with large area deposition methods such as ink-jet printing, spray coating and blade coating. However, for these deposition techniques, uniform, aggregate free coatings are essential and so lower molecular weights are often desirable.
Power conversion efficiencies of up to 6.7% have been achieved in our own labs using PCDTBT (M137) in a standard reference architecture using PEDOT:PSS as a hole interface and calcium/aluminium as an electron interface. By using advanced interface materials and antireflection coatings PCDTBT has also achieved up to 7.2% in the literature [1].
For information on processing please see our specific fabrication details for PCDTBT below, general fabrication video, general fabrication guide, optical modelling paper on our standard architecture [2], or us for any additional help and support.
References (please note that Ossila has no formal connection to any other authors or institutions in these references):
The below materials are in stock for immediate dispatch to research institutions worldwide. They can be bought online via Paypal checkout or via a standard purchase order.
In general, PCDTBT is used at lower concentrations than P3HT (typically 4 to 7 mg/ml) and higher blend ratios (1:4 PCDTBT:PC70BM) and as such 100 mg of PCDTBT will make around 500 devices on Ossila's standard ITO substrates (20 x 15 mm) even assuming 50% material loss in filtration and solution preparation. Please note that as the higher molecular weight fractions have a lower yield we are now operating differential pricing policy. See below for more details on separation, yield and differential pricing.
Batch | Mw | Mn | PDI | Stock Info |
M1311 | 34,900 | 16,200 | 2.15 | In stock |
For high performance organic photovoltaics with efficiencies of 6% and above poly[N-9'-heptadecanyl-2,7-carbazole-alt-5,5-(4',7'-di-2-thienyl-2',1',3'-benzothiadiazole)] (PCDTBT)
We have achieved efficiencies of 6.7% in our own labs using a standard reference architecture of PEDOT:PSS as a hole interface and calcium/aluminium as an electron interface (see below for fabrication details). Our paper published in Nature Scientific Reports titled Molecular weight dependent vertical composition profiles of PCDTBT:PC71BM blends for organic photovoltaics explores the effect and optimisation of molecular weight.
JV curve from PCDTBT in a standard reference device. HOMO/LUMO = -5.4 eV / -3.6 eV, Bandgap = 1.8 eV; CAS number 958261-50-2
Ossila’s reference devices were made by dissolving PCDTBT (M137) at 4 mg/ml in anhydrous chlorobenzene using a stir-bar and hotplate at 80°C overnight. This was then mixed with Ossila’s dry 95%/5% C70 PCBM (M113) powder in a 1:4 blend ratio to produce an overall concentration of 20 mg/ml.The blend solution was heated with a stir-bar on a hotplate at 80°C for 2 hours before cooling to room temperature over 10 minutes and filtering with a 0.45 μm PTFE filter immediay prior to spinning at 700 rpm to give a film of approx. 70 nm.
Glass / ITO / PEDOT:PSS / PCDTBT:PC70BM / Ca / Al
Ossila’s pre-patterned ITO substrates (S171) with 100 nm (20 ?/square) ITO were cleaned with the following procedure:
PEDOT:PSS (AI4083 from Ossila) was filtered through a 0.45 μm PVDF filter before spin coating at 6000 rpm in air to produce a layer 30 nm thick. The coated substrates were then stored on a hotplate at 150°C before transfer into a glovebox and a further bake of 150°C for 10 mins to remove any residual moisture.The active ink was spin cast and the cathode strip wiped clean using chlorobenzene before transfer to an evaporator where 2.5 nm of Ca followed by 100 nm of Al were deposited at <10-6 mbar. The substrates were then annealed at 80°C for 15 mins on a hotplate in the glovebox before protecting with the Ossila encapsulation system. Measurement was performed under ambient conditions using a Newport 92251A AM1.5 100 mW/cm2 solar simulator and NREL certified silicon reference cell.
All-Inkjet-Printed, All-Air-Processed Solar Cells, Sirringhaus, McNeill et al., Advanced Energy Materials, 1400432, 2014
"Our in depth study on PCDTBT:PC70BM layers demonstrated that inkjet-printed blend layers exhibited similar nanoscale structure and excited state dynamics to spin-coated layers."