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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Solid state physicochemical properties and applications of organic and metallo-organic fullerene derivatives
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References
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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.
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TL;DR: In this paper, the performance of organic field effect transistors (OFETs) is examined in terms of field effect mobility and on-off current ratio, and the most prominent fabrication techniques are described.
Journal ArticleDOI
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TL;DR: It is demonstrated that the use of an appropriate hydroxyl-free gate dielectric—such as a divinyltetramethylsiloxane-bis(benzocyclobutene) derivative (BCB; ref. 6)—can yield n-channel FET conduction in most conjugated polymers, revealing that electrons are considerably more mobile in these materials than previously thought.
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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
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Journal ArticleDOI
An electrophoretic ink for all-printed reflective electronic displays
TL;DR: In this article, an electrophoretic ink based on the microencapsulation of an electrophic dispersion was used to solve the lifetime issues and allow the fabrication of a bistable electronic display solely by means of printing.