Journal ArticleDOI
Study of electrical performance and stability of solution-processed n-channel organic field-effect transistors
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TLDR
In this paper, a solution processed n-channel organic field effect transistors based on [6,6]-phenyl C61 butyric acid methyl ester with high mobility and low contact resistance are reported.Abstract:
Solution processed n-channel organic field-effect transistors based on [6,6]-phenyl C61 butyric acid methyl ester with high mobility and low contact resistance are reported. Ca, Au, or Ca capped with Au (Ca/Au) was used as the top source/drain electrodes. The devices with Ca electrodes exhibit excellent n-channel behavior with electron mobility values of 0.12 cm2/V s, low threshold voltages (∼2.2 V), high current on/off ratios (105–106) and subthreshold slopes of 0.7 V/decade. By varying the channel lengths (25–200 μm) in devices with different metal/semiconductor interfaces, the effect of channel length scaling on mobility is studied and the contact resistance is extracted. The width-normalized contact resistance (RCW) for Au (12 kΩ cm) is high in comparison to Ca (7.2 kΩ cm) or Ca/Au (7.5 kΩ cm) electrodes at low gate voltage (VGS=10 V). However, in the strong accumulation regime at high gate voltage (VGS=30 V), its value is nearly independent of the choice of metal electrodes and in a range of 2.2–2.6 kΩ cm. These devices show stable electrical behavior under multiple scans and low threshold voltage instability under electrical bias stress (VDS=VGS=30 V, 1 h) in N2 atmosphere.read more
Citations
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Journal ArticleDOI
Toward printed integrated circuits based on unipolar or ambipolar polymer semiconductors.
TL;DR: Recently unprecedented values of μ ∼ 10 cm(2) /Vs have been achieved with solution-processed polymer based OFETs, a value competing with mobilities reported in organic single-crystals and exceeding the performances enabled by amorphous silicon.
Journal ArticleDOI
Charge injection in solution-processed organic field-effect transistors: physics, models and characterization methods.
Dario Natali,Mario Caironi +1 more
TL;DR: A comprehensive overview on the subject of current injection in organic thin film transistors is offered: physical principles concerning energy level (mis)alignment at interfaces, models describing charge injection, technologies for interface tuning, and techniques for characterizing devices.
Journal ArticleDOI
Perspectives and challenges for organic thin film transistors: materials, devices, processes and applications
TL;DR: In this article, the authors present a deep insight into different organic/inorganic materials used for the dielectric layer, electrodes and substrate for thin film transistors (TFTs).
Journal ArticleDOI
Molecular Engineering of Nonhalogenated Solution-Processable Bithiazole-Based Electron-Transport Polymeric Semiconductors
Boyi Fu,Cheng-Yin Wang,Bradley D. Rose,Yundi Jiang,Mincheol Chang,Ping-Hsun Chu,Zhibo Yuan,Canek Fuentes-Hernandez,Bernard Kippelen,Jean-Luc Brédas,David M. Collard,Elsa Reichmanis +11 more
TL;DR: In this article, 2,2′-bithiazole was synthesized in one step and copolymerized with dithienyldiketopyrrolopyrrole to afford poly(dithienymylldiketsopyrylopyrdrug-biomethane)-bithiaide, PDBTz, which exhibited electron mobility reaching 0.3 cm2 V 1 s−1 in organic field effect transistor (OFET) configuration.
Journal ArticleDOI
Efficient charge injection from a high work function metal in high mobility n-type polymer field-effect transistors
Mario Caironi,Christopher R. Newman,Jennifer R. Moore,Dario Natali,He Yan,Antonio Facchetti,Henning Sirringhaus +6 more
TL;DR: In this article, the authors demonstrate efficient electron injection from a high work function metal in staggered transistors based on the high mobility poly{[N,N′-bis(2-octyldodecyl)-naphthalene-1,4,5,8-bis (dicarboximide)-2,6-diyl]-alt-5,5′-(2,2′-bithiophene)}.
References
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Book
Organic Field Effect Transistors
Zhenan Bao,Jason Locklin +1 more
TL;DR: In this article, the authors provide a comprehensive, multidisciplinary survey of the present theory, charge transport studies, synthetic methodology, materials characterization, and current applications of organic field-effect transistors (OFETs).
Journal ArticleDOI
Contact resistance in organic transistors that use source and drain electrodes formed by soft contact lamination
TL;DR: In this article, a detailed study of the electrical properties of soft contact laminations of organic transistors is presented, with an emphasis on the nature of the laminated contacts with the p-and n-type semiconductors pentacene and copper hexadecafluorophthalocyanine, respectively.
Journal ArticleDOI
Contact effects in polymer transistors
Robert Street,Alberto Salleo +1 more
TL;DR: In this article, the current-voltage relation for the contact from the transistor output characteristics measured with different channel lengths was derived from the contact injection properties of the metal Schottky barrier.
Journal ArticleDOI
High performance n-channel organic field-effect transistors and ring oscillators based on C60 fullerene films
Thomas D. Anthopoulos,Birendra Singh,Nenad Marjanovic,Niyazi Serdar Sariciftci,Alberto Montaigne Ramil,Helmut Sitter,Michael Cölle,Dago M. de Leeuw +7 more
TL;DR: In this paper, organic n-channel field effect transistors and circuits based on C60 films grown by hot wall epitaxy were investigated and the electron mobility was found to be dependent strongly on the substrate temperature during film growth and on the type of the gate dielectric employed.
Journal ArticleDOI
Organic thin-film electronics from vitreous solution-processed rubrene hypereutectics.
Natalie Stingelin-Stutzmann,Natalie Stingelin-Stutzmann,Natalie Stingelin-Stutzmann,Edsger C. P. Smits,Edsger C. P. Smits,Harry J. Wondergem,C. Tanase,Paul W. M. Blom,Paul E. Smith,Dago M. de Leeuw +9 more
TL;DR: This work advances a general route for facile fabrication of thin-film devices from solution by incorporating a glass-inducing diluent that enables controlled crystallization from an initial vitreous state of the organic semiconductor, formed in a selected area of the phase diagram of the two constituents.