A High Mobility P‐Type DPP‐Thieno[3,2‐<i>b</i>]thiophene Copolymer for Organic Thin‐Film Transistors

Li, Yuning; Singh, Samarendra P.; Sonar, Prashant

doi:10.1002/adma.201002313

Cited by 510 publications

(508 citation statements)

References 30 publications

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“…It is common to see these polymers with hole-mobilities of $1 cm 2 /V s, due to their high crystallinity. 111,112 Thienothiophene-Benzodithiophene-Based Polymer Yu et al synthesized a series of polymers with thieno [3,4-b]thiophene and benzodithiophene alternating units, termed PTB1 to PTB7. 113,114 A PCE of 7.4% was achieved for BHJ solar cells based on PTB7/PC 71 BM blends.…”

Section: Reviewmentioning

confidence: 99%

On the morphology of polymer‐based photovoltaics

Liu

Jung

et al. 2012

J Polym Sci B Polym Phys

308

248

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We review the morphologies of polymer-based solar cells and the parameters that govern the evolution of the morphologies and describe different approaches to achieve the optimum morphology for a BHJ OPV. While there are some distinct differences, there are also some commonalities. It is evident that morphology and the control of the morphology are important for device performance and, by controlling the thermodynamics, in particular, the interactions of the components, and by controlling kinetic parameters, like the rate of solvent evaporation, crystallization and phase separation, optimized morphologies for a given system can be achieved. While much research has focused on P3HT, it is evident that a clearer understanding of the morphology and the evolution of the morphology in low bad gap polymer systems will increase the efficiency further. While current OPVs are on the verge of breaking the 10% barrier, manipulating and controlling the morphology will still be key for device optimization and, equally important, for the fabrication of these devices in an industrial setting.

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Section: Reviewmentioning

confidence: 99%

On the morphology of polymer‐based photovoltaics

Liu

Jung

et al. 2012

J Polym Sci B Polym Phys

308

248

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“…7,8 Recently, a copolymer of 3,6-bis(5-bromothiophen-2-yl)-N,N 0 -bis(2-octyl-1-dodecyl)-1,4-dioxopyrrolo [3,4-c]pyrrole and 2,5-bis(trimethylstannyl)thieno [3,2-b]thiophene showed an impressive hole mobility of ∼0.9 cm 2 V -1 s -1 . 9 In terms of materials for OPVs, copolymerization of the same DPP monomer (albeit having a slightly different solubilizing alkyl chain) with phenylene-1,4-diboronic acid bispinacol ester afforded a polymer that was used to fabricate OPV devices with efficiencies of ∼5.5%.…”

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confidence: 99%

Thieno[3,2-b]thiophene−Diketopyrrolopyrrole-Containing Polymers for High-Performance Organic Field-Effect Transistors and Organic Photovoltaic Devices

et al. 2011

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ABSTRACT:We report the synthesis and polymerization of a novel thieno[3,2-b]thiophene-diketopyrrolopyrrolebased monomer. Copolymerization with thiophene afforded a polymer with a maximum hole mobility of 1.95 cm 2 V -1 s -1 , which is the highest mobility from a polymer-based OFET reported to date. Bulk-heterojunction solar cells comprising this polymer and PC 71 BM gave a power conversion efficiency of 5.4%. T here is considerable interest in the synthesis of narrow-bandgap conjugated polymers for use in organic photovoltaic (OPV) and organic field-effect transistor (OFET) devices. Their solution processability and mechanical properties allow access to a new generation of cheap and flexible transistors and solar devices. Current state of the art polymeric materials have allowed for the fabrication of OFETs with mobilities of ∼1 cm 2 V -1 s -1 1 and OPV devices with power conversion efficiencies (PCEs) of over 7%.2 Diketopyrrolopyrrole (DPP)-based copolymers have emerged as extremely attractive materials for both thin-film transistors and solar cell devices in recent years. The DPP core's electrondeficient nature has been exploited for the synthesis of extremely narrow band gap donor-acceptor-type materials that are wellsuited for use in OPVs with high PCEs reported from both small molecules and polymers.3-6 Furthermore, the planarity of the DPP skeleton and its ability to accept hydrogen bonds (and other types of electrostatic interactions) result in copolymers that encourage π-π stacking. Typically, these DPP-based copolymers are prepared via either Suzuki or Stille coupling of the 3,6-bis(5-bromothiophen-2-yl)-2,5-dialkylpyrrolo[3,4-c]pyrrole-1,4-(2H,5H)-dione core with the desired comonomer, which as a result means that the electron-deficient DPP unit is always flanked by two thiophenes. Variation of the comonomer has yielded polymers with extremely attractive properties for both OPV and OFET devices. For instance, copolymerization with thiophene derivatives or benzothiadiazole resulted in polymers with impressive ambipolar charge-carrier mobilities. 7,8 Recently, a copolymer of 3,6-bis(5-bromothiophen-2-yl)-N,N 0 -bis(2-octyl-1-dodecyl)-1,4-dioxopyrrolo[3,4-c]pyrrole and 2,5-bis(trimethylstannyl)thieno[3,2-b]thiophene showed an impressive hole mobility of ∼0.9 cm 2 V -1 s -1 . 9 In terms of materials for OPVs, copolymerization of the same DPP monomer (albeit having a slightly different solubilizing alkyl chain) with phenylene-1,4-diboronic acid bispinacol ester afforded a polymer that was used to fabricate OPV devices with efficiencies of ∼5.5%. 10Despite the significant number of reports on DPP-based copolymers, there have been very few studies on the effect of modifying the 3,6-bis(5-bromothiophen-2-yl)-2,5-dialkylpyrrolo-[3,4-c]pyrrole-1,4-(2H,5H)-dione monomer. One very recent example was the replacement of the flanking thiophenes by furans, which resulted in polymers with high PCEs in solar cell devices. 11 We were interested in increasing the intermolecular association of DPP-based copolymers by repla...

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“…Au source and drain electrodes were fabricated using conventional lift off photolithography. The semiconducting polymer was DPP-Thieno[3,2-b]thiophene copolymer (PDBT-co-TT) [25], purchased from XRCC. This was dissolved in 1,2-dichlorobenzene at a concentration of 5 mg/ml.…”

Section: Methodsmentioning

confidence: 99%

“…This variability is low for printed devices, which highlights the uniformity of the printed dielectric layer. This result can be benchmarked against the results of Y. Li et al [25]. Their devices were manufactured by spin casting PDBT-co-TT on octyltrichlorosilane (OTS) treated SiO 2 /Si with an annealing temperature of 140 °C.…”

Section: Figure 5 Sem Image Of a Cross Section Through A Three-layermentioning

confidence: 99%

Inkjet printed thin and uniform dielectrics for capacitors and organic thin film transistors enabled by the coffee ring effect

Graddage

Chu

Ding

et al. 2016

Organic Electronics

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Access and use of this website and the material on it are subject to the Terms and Conditions set forth at Inkjet printed thin and uniform dielectrics for capacitors and organic thin film transistors enabled by the coffee ring effect Graddage, Neil; Chu, Ta-Ya; Ding, Heping; Py, Christophe; Dadvand, Afshin; Tao, Ye http://nparc.cisti-icist.nrc-cnrc.gc.ca/npsi/jsp/nparc_cp.jsp?lang=fr L'accès à ce site Web et l'utilisation de son contenu sont assujettis aux conditions présentées dans le site LISEZ CES CONDITIONS ATTENTIVEMENT AVANT D'UTILISER CE SITE WEB. NRC Publications Record / Notice d'Archives des publications de CNRC:http://nparc.cisti-icist.nrc-cnrc.gc.ca/npsi/ctrl?action=rtdoc&an=21277466&lang=en http://nparc.cisti-icist.nrc-cnrc.gc.ca/npsi/ctrl?action=rtdoc&an=21277466&lang=fr READ THESE TERMS AND CONDITIONS CAREFULLY BEFORE USING THIS WEBSITE.http://nparc.cisti-icist.nrc-cnrc.gc.ca/npsi/jsp/nparc_cp.jsp?lang=en Vous avez des questions? Nous pouvons vous aider. Pour communiquer directement avec un auteur, consultez la première page de la revue dans laquelle son article a été publié afin de trouver ses coordonnées. Si vous n'arrivez pas à les repérer, communiquez avec nous à PublicationsArchive-ArchivesPublications@nrc-cnrc.gc.ca. Questions? Contact the NRC Publications Archive team atPublicationsArchive-ArchivesPublications@nrc-cnrc.gc.ca. If you wish to email the authors directly, please see the first page of the publication for their contact information. NRC Publications Archive Archives des publications du CNRCThis publication could be one of several versions: author's original, accepted manuscript or the publisher's version. / La version de cette publication peut être l'une des suivantes : la version prépublication de l'auteur, la version acceptée du manuscrit ou la version de l'éditeur. For the publisher's version, please access the DOI link below./ Pour consulter la version de l'éditeur, utilisez le lien DOI ci-dessous.http://doi.org/10.1016/j.orgel.2015.11.039Organic Electronics: physics, materials, applications, 29, pp. 114-119, 2015-12-14 Inkjet printed thin and uniform dielectrics for capacitors and organic thin film transistors enabled by the coffee ring effect  The thin and uniform dielectric enabled high performance TFTs and logic gates.

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A High Mobility P‐Type DPP‐Thieno[3,2‐b]thiophene Copolymer for Organic Thin‐Film Transistors

Cited by 510 publications

References 30 publications

On the morphology of polymer‐based photovoltaics

On the morphology of polymer‐based photovoltaics

Thieno[3,2-b]thiophene−Diketopyrrolopyrrole-Containing Polymers for High-Performance Organic Field-Effect Transistors and Organic Photovoltaic Devices

Inkjet printed thin and uniform dielectrics for capacitors and organic thin film transistors enabled by the coffee ring effect

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