Journal ArticleDOI
High-Resolution Inkjet Printing of All-Polymer Transistor Circuits
Henning Sirringhaus,Takeo Kawase,Richard H. Friend,Tatsuya Shimoda,M. Inbasekaran,Weishi Wu,E. P. Woo +6 more
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TLDR
It is shown that the use of substrate surface energy patterning to direct the flow of water-based conducting polymer inkjet droplets enables high-resolution definition of practical channel lengths of 5 micrometers, and high mobilities were achieved.Abstract:
Direct printing of functional electronic materials may provide a new route to low-cost fabrication of integrated circuits. However, to be useful it must allow continuous manufacturing of all circuit components by successive solution deposition and printing steps in the same environment. We demonstrate direct inkjet printing of complete transistor circuits, including via-hole interconnections based on solution-processed polymer conductors, insulators, and self-organizing semiconductors. We show that the use of substrate surface energy patterning to direct the flow of water-based conducting polymer inkjet droplets enables high-resolution definition of practical channel lengths of 5 micrometers. High mobilities of 0.02 square centimeters per volt second and on-off current switching ratios of 10 5 were achieved.read more
Citations
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Journal ArticleDOI
Molecular Level Investigation of the Film Structure of a High Electron Mobility Copolymer via Vibrational Spectroscopy
Ester Giussani,Daniele Fazzi,Luigi Brambilla,Mario Caironi,Chiara Castiglioni,Chiara Castiglioni +5 more
TL;DR: In this article, the authors used Vibrational Spectroscopy to investigate the film structure of poly{N,N′-bis(2-octyldodecyl)-naphthalene-1,4,5,8-bis (dicarboximide)-2,6-diyl]-alt-5,5′-(2,2′-bithiophene)} (P(NDI2OD-T2)) at the molecular level.
Journal ArticleDOI
Direct laser writing of complementary logic gates and lateral p-n diodes in a solution-processible monolithic organic semiconductor.
Jean-Charles Ribierre,Takashi Fujihara,Satoshi Watanabe,Mutsuyoshi Matsumoto,Tsuyoshi Muto,Aiko Nakao,Tetsuya Aoyama +6 more
TL;DR: This work fabricated top-contact bottom-gate organic FETs under ambient conditions by spin-coating a QQT(CN)4 thin film on top of a polyimide gate-dielectric layer and using chromium drain/source electrodes, and exhibits an ambipolar behavior with a predominant hole-transport character.
Patent
Protective cases with integrated electronics
Abstract: A protective case for a wireless electronics device includes one or more output devices integrated with or bonded to the protective case, from which a perceivable output (e.g., visible or audible indication) is generated. Various other electronics (e.g., circuit elements, ICs, microcontrollers, sensors) also may be integrated with or bonded to the protective case to provide power and/or one or more output signals to control the output device(s). In one example, a wireless signal generated by the wireless device is sensed by the integrated electronics, and the output device(s) are controlled based on the detected wireless signal. The protective case may be substantially rigid or at least partially deformable (flexible and/or stretchable), and the integrated electronics similarly may be at least partially deformable such that they may conform with various contours of the protective case and remain operative notwithstanding flexing and/or stretching of the case.
Journal ArticleDOI
Printing of metallic 3D micro-objects by laser induced forward transfer
Michael Zenou,Zvi Kotler +1 more
TL;DR: Digital printing of 3D metal micro-structures by laser induced forward transfer under ambient conditions is reviewed and several examples of micron-scale resolution metal objects printed using this method are presented and discussed.
References
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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
Integrated Optoelectronic Devices Based on Conjugated Polymers
TL;DR: An all-polymer semiconductor integrated device is demonstrated with a high-mobility conjugated polymer field-effect transistor driving a polymer light-emitting diode (LED) of similar size, which represents a step toward all- polymer optoelectronic integrated circuits such as active-matrix polymer LED displays.
Journal ArticleDOI
Ultrahigh-Density Nanowire Arrays Grown in Self-Assembled Diblock Copolymer Templates
Thomas Thurn-Albrecht,Joerg Schotter,G. A. Kästle,N. Emley,Takasada Shibauchi,Takasada Shibauchi,Lia Krusin-Elbaum,Kathryn W. Guarini,Charles T. Black,Mark T. Tuominen,Thomas P. Russell +10 more
TL;DR: A simple, robust, chemical route to the fabrication of ultrahigh-density arrays of nanopores with high aspect ratios using the equilibrium self-assembled morphology of asymmetric diblock copolymers is shown.
Journal ArticleDOI
All-polymer field-effect transistor realized by printing techniques
TL;DR: A field-effect transistor has been fabricated from polymer materials by printing techniques, which shows high current output, and opens the way for large-area, low-cost plastic electronics.
Journal ArticleDOI
A soluble and air-stable organic semiconductor with high electron mobility
Howard E. Katz,Andrew J. Lovinger,John Asher Johnson,Christian Kloc,Theo Siegrist,Wenjie Li,Y. Y. Lin,Ananth Dodabalapur +7 more
TL;DR: A crystallographically engineered naphthalenetetracarboxylic diimide derivative is reported that allows us to fabricate solution-cast n-channel FETs with promising performance at ambient conditions and to produce a complementary inverter circuit whose active layers are deposited entirely from the liquid phase.