Journal ArticleDOI
Critical Role of Alkyl Chain Branching of Organic Semiconductors in Enabling Solution-Processed N-Channel Organic Thin-Film Transistors with Mobility of up to 3.50 cm2 V–1 s–1
Fengjiao Zhang,Yunbin Hu,Torben Schuettfort,Chong-an Di,Xike Gao,Christopher R. McNeill,Lars Thomsen,Stefan C. B. Mannsfeld,Wei Yuan,Henning Sirringhaus,Daoben Zhu +10 more
Reads0
Chats0
TLDR
Results demonstrate that variation of the alkyl chain branching point is a powerful strategy for tuning of molecular packing to enable high charge transport mobilities.Abstract:
Substituted side chains are fundamental units in solution processable organic semiconductors in order to achieve a balance of close intermolecular stacking, high crystallinity, and good compatibility with different wet techniques. Based on four air-stable solution-processed naphthalene diimides fused with 2-(1,3-dithiol-2-ylidene)malononitrile groups (NDI-DTYM2) that bear branched alkyl chains with varied side-chain length and different branching position, we have carried out systematic studies on the relationship between film microstructure and charge transport in their organic thin-film transistors (OTFTs). In particular synchrotron measurements (grazing incidence X-ray diffraction and near-edge X-ray absorption fine structure) are combined with device optimization studies to probe the interplay between molecular structure, molecular packing, and OTFT mobility. It is found that the side-chain length has a moderate influence on thin-film microstructure but leads to only limited changes in OTFT performanc...read more
Citations
More filters
Journal ArticleDOI
Side Chain Engineering in Solution-Processable Conjugated Polymers
Jianguo Mei,Zhenan Bao +1 more
TL;DR: In this paper, side chains in conjugated polymers have been used to tune a polymer's physical properties, including absorption, emission, energy level, molecular packing, and charge transport.
Journal ArticleDOI
Imide- and Amide-Functionalized Polymer Semiconductors
TL;DR: This paper presents a new mesoporous-based approach to composites engineering that combines high-performance materials such as cadmium, cadmiferousmaterials, and polymethine with low-cost materials like brass and copper.
Journal ArticleDOI
Record high hole mobility in polymer semiconductors via side-chain engineering.
TL;DR: It is shown that introducing smart side-chain engineering to polymer semiconductors can facilitate intermolecular electronic communication and high hole mobility could be achieved even in devices fabricated using the polymers at room temperature.
Journal ArticleDOI
25th anniversary article: key points for high-mobility organic field-effect transistors.
TL;DR: In this review, the key points for development of high mobility OFETs are highlighted from aspects of molecular engineering, process engineering and interface engineering, and the importance of other factors, such as impurities and testing conditions is also addressed.
Journal ArticleDOI
Functional Naphthalene Diimides: Synthesis, Properties, and Applications
TL;DR: This comprehensive review surveys developments over the past decade in the field of naphthalene diimides and explores their application toward: supramolecular chemistry; sensors; host-guest complexes for molecular switching devices; ion-channels by ligand gating; gelators for sensing aromatic systems; catalysis through anion-π interactions; and NDI intercalations with DNA for medicinal applications.
References
More filters
Journal ArticleDOI
The path to ubiquitous and low-cost organic electronic appliances on plastic
TL;DR: The future holds even greater promise for this technology, with an entirely new generation of ultralow-cost, lightweight and even flexible electronic devices in the offing, which will perform functions traditionally accomplished using much more expensive components based on conventional semiconductor materials such as silicon.
Journal ArticleDOI
Two-dimensional charge transport in self-organized, high-mobility conjugated polymers
Henning Sirringhaus,Peter J. Brown,Richard H. Friend,Martin Nielsen,Klaus Bechgaard,B.M.W. Langeveld-Voss,A. J. H. Spiering,René A. J. Janssen,E. W. Meijer,P. T. Herwig,Dago M. de Leeuw +10 more
TL;DR: In this article, the authors used thin-film, field effect transistor structures to probe the transport properties of the ordered microcrystalline domains in the conjugated polymer poly(3-hexylthiophene), P3HT.
Journal ArticleDOI
A high-mobility electron-transporting polymer for printed transistors
He Yan,Zhihua Chen,Yan Zheng,Chris Newman,Jordan R. Quinn,Florian Dötz,Marcel Kastler,Antonio Facchetti +7 more
TL;DR: A highly soluble and printable n-channel polymer exhibiting unprecedented OTFT characteristics under ambient conditions in combination with Au contacts and various polymeric dielectrics is reported and all-printed polymeric complementary inverters have been demonstrated.
Journal ArticleDOI
Highly sensitive flexible pressure sensors with microstructured rubber dielectric layers
Stefan C. B. Mannsfeld,Benjamin C. K. Tee,Randall M. Stoltenberg,Christopher V. H. H. Chen,Soumendra N. Barman,Beinn V.O. Muir,Anatoliy N. Sokolov,Colin Reese,Zhenan Bao +8 more
TL;DR: Flexible, capacitive pressure sensors with unprecedented sensitivity and very short response times that can be inexpensively fabricated over large areas by microstructuring of thin films of the biocompatible elastomer polydimethylsiloxane are demonstrated.
Journal ArticleDOI
Liquid-crystalline semiconducting polymers with high charge-carrier mobility.
Iain McCulloch,Martin Heeney,Clare Bailey,Kristijonas Genevičius,Iain I. MacDonald,Maxim Shkunov,David Sparrowe,Steve Tierney,Robert Wagner,Weimin Zhang,Michael L. Chabinyc,R. Joseph Kline,Michael D. McGehee,Michael F. Toney +13 more
TL;DR: New semiconducting liquid-crystalline thieno[3,2-b ]thiophene polymers are reported on, the enhancement in charge-carrier mobility achieved through highly organized morphology from processing in the mesophase, and the effects of exposure to both ambient and low-humidity air on the performance of transistor devices.