Effects of polarized organosilane self-assembled monolayers on organic single-crystal field-effect transistors
J. Takeya,T. Nishikawa,Taishi Takenobu,S. Kobayashi,Yoshihiro Iwasa,T. Mitani,C. Goldmann,Cornelius Krellner,Bertram Batlogg +8 more
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TLDR
In this paper, the surface conductivity of pentacene and rubrene single crystals laminated on polarized and nearly unpolarized molecular monolayers with application of perpendicular electric fields was measured.Abstract:
The surface conductivity is measured by a four-probe technique for pentacene and rubrene single crystals laminated on polarized and nearly unpolarized molecular monolayers with application of perpendicular electric fields. The polarization of the self-assembled monolayers (SAMs) shifts the threshold gate voltage, while maintaining a very low subthreshold swing of the single-crystal devices (0.11 V∕decade). The results, excluding influences of parasitic contacts and grain boundaries, demonstrate SAM-induced nanoscale charge injection up to ∼1012cm−2 at the surface of the organic single crystals.read more
Citations
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The larger acenes: versatile organic semiconductors.
TL;DR: New approaches to add functionality were developed to improve the processability of these materials in solution, allowing the synthesis of acenes larger than pentacene, which have hitherto been largely unavailable and poorly studied.
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Flexible polymer transistors with high pressure sensitivity for application in electronic skin and health monitoring
Gregor Schwartz,Benjamin C. K. Tee,Jianguo Mei,Anthony L. Appleton,Do Hwan Kim,Do Hwan Kim,Huiliang Wang,Zhenan Bao +7 more
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Gate Dielectrics for Organic Field‐Effect Transistors: New Opportunities for Organic Electronics
TL;DR: In this article, the authors review the motivations for, and recent advances in, new gate dielectric materials for incorporation into organic thin-film transistors (OTFTs) for organic electronics.
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Very high-mobility organic single-crystal transistors with in-crystal conduction channels
Jun Takeya,Masakazu Yamagishi,Y. Tominari,R. Hirahara,Yasuhiro Nakazawa,Takeshi Nishikawa,T. Kawase,Tatsuya Shimoda,S. Ogawa +8 more
TL;DR: Very high-mobility organic transistors are fabricated with purified rubrene single crystals and high-density organosilane self-assembled monolayers in this paper, where the interface with minimized surface levels allows carriers to distribute deep into the crystals by more than a few molecular layers under weak gate electric fields, and the inner channel plays a significant part in the transfer performance.
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Organic semiconductor crystals
TL;DR: This review provides a comprehensive overview of the molecular packing, morphology and charge transport features of organic semiconductor crystals, the control of crystallization for achieving high quality crystals and the device physics in the three main applications.
References
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Journal ArticleDOI
Organic Thin Film Transistors for Large Area Electronics
TL;DR: In this article, the authors present new insight into conduction mechanisms and performance characteristics, as well as opportunities for modeling properties of organic thin-film transistors (OTFTs) and discuss progress in the growing field of n-type OTFTs.
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Control of carrier density by self-assembled monolayers in organic field-effect transistors
S. Kobayashi,Takao Nishikawa,Takao Nishikawa,Taishi Takenobu,S. Mori,Tatsuya Shimoda,Tatsuya Shimoda,Tadaoki Mitani,Hidekazu Shimotani,Noriyuki Yoshimoto,Seishi Ogawa,Yoshihiro Iwasa +11 more
TL;DR: A new technique is discussed that enables us to control the charge density in the channel by using organosilane self-assembled monolayers (SAMs) on SiO2 gate insulators.
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Pentacene thin film transistors on inorganic dielectrics: Morphology, structural properties, and electronic transport
TL;DR: In this paper, the structural and transport properties of evaporated pentacene organic thin film transistors (TFTs) are reported, and they show the influence of the deposition conditions with different inorganic dielectrics.
Journal ArticleDOI
Temperature and gate voltage dependence of hole mobility in polycrystalline oligothiophene thin film transistors
TL;DR: In this paper, a method was developed to extract the carrier mobility from an analysis of the transfer characteristics of polycrystalline sexithiophene (6 T) transistors at temperatures ranging from 10 to 300 K.
Journal ArticleDOI
Field-effect transistors on rubrene single crystals with parylene gate insulator
TL;DR: In this paper, the organic field-effect transistors (OFETs) on the surface of single crystals of rubrene have been fabricated and the parylene polymer film has been used as the gate insulator.