Megahertz operation of flexible low-voltage organic thin-film transistors

Zschieschang, Ute; Hofmockel, Robert; Rödel, Reinhold; Kraft, Ulrike; Kang, Myeong Jin; Takimiya, Kazuo; Zaki, Tarek; Letzkus, Florian; Butschke, Jörg; Richter, H.; Burghartz, Joachim N.; Klauk, Hagen

doi:10.1016/j.orgel.2013.03.021

Cited by 73 publications

(60 citation statements)

References 43 publications

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“…For transistors fabricated on PEN the transconductance increased from ∼26 to ∼53 µS as the W /L increased. These values are similar to those obtained by differentiating the transfer characteristic for V ds = V gs = −2 V. They also surpass the highest reported values to date [12] by a factor of 2 to 5.…”

Section: Resultssupporting

confidence: 88%

“…To date the main focus was on the reduction in L and the demonstration of digital circuits with high operation frequency [12], [13]. When OTFTs with L = 1 µm and W = 10 µm were used, the transconductance of 12 µS was achieved and ring oscillators based on such transistors exhibited megahertz operation [12]. In such a case the W /L ratio of 10 was used to minimize the transistor parasitic capacitances and thus realize high switching speed.…”

Section: Introductionmentioning

confidence: 99%

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Organic Thin Film Transistors With Multi-Finger Contacts as Voltage Amplifiers

2018

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This version is available at https://strathprints.strath.ac.uk/65187/ Strathprints is designed to allow users to access the research output of the University of Strathclyde. Unless otherwise explicitly stated on the manuscript, Copyright © and Moral Rights for the papers on this site are retained by the individual authors and/or other copyright owners. Please check the manuscript for details of any other licences that may have been applied. You may not engage in further distribution of the material for any profitmaking activities or any commercial gain. You may freely distribute both the url (https://strathprints.strath.ac.uk/) and the content of this paper for research or private study, educational, or not-for-profit purposes without prior permission or charge.Any correspondence concerning this service should be sent to the Strathprints administrator: strathprints@strath.ac.ukThe Strathprints institutional repository (https://strathprints.strath.ac.uk) is a digital archive of University of Strathclyde research outputs. It has been developed to disseminate open access research outputs, expose data about those outputs, and enable the management and persistent access to Strathclyde's intellectual output. INDEX TERMS Amplifiers, analog circuits, organic thin film transistors, sensors.

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Section: Resultssupporting

confidence: 88%

Section: Introductionmentioning

confidence: 99%

Organic Thin Film Transistors With Multi-Finger Contacts as Voltage Amplifiers

2018

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“…In the context of the reported literature these represent state-of-the-art values for solution-processed organic devices fabricated on plastic foil. [12][13][14][15][16][17][18][19][20][21] This is achieved without the need for a rigid substrate, using solution-processed dielectric and semiconductor, and is regardless of the relatively low effective mobility of these devices ( µ sat = 0.03-0.06 cm 2 V −1 s −1 ), highlighting the impact and importance of self-aligned, low stray capacitance architecture on device performance.…”

Section: Maximum Device Switching Speedmentioning

confidence: 97%

“…Only a handful of reports on OFET alternating current (AC) characterization use fabrication techniques that even partially fulfi l the requirements set out above. [12][13][14][15][16][17][18][19][20][21][22][23] However to build functional fl exible circuits it is important to understand how to reconcile device fabrication and performance. [24][25][26] This is a requirement if plastic electronics are to be implemented in applications such as radio frequency identifi cation (RFID) tags which operate at megahertz frequencies.…”

Section: Doi: 101002/aelm201500024mentioning

confidence: 99%

Self‐Aligned Megahertz Organic Transistors Solution‐Processed on Plastic

Higgins

Muir

Wade

et al. 2015

Adv Elect Materials

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The processing of complex nanoscale electronic structures on plastic substrates is a significant challenge, requiring the combination of low temperature, nonaggressive, and high resolution methods. Here a scalable process flow on plastic is presented tbat enables the fabrication of flexible nanoimprinted organic field‐effect transistors (OFETs) with self‐aligned contacts and solution‐processed semiconductor and dielectric layers, at processing temperatures ≤ 150 °C. OFETs are fabricated with device cutoff frequencies f > 1 MHz at low operating bias V DS = −15 V. The technique allows the patterning of metal structures over four orders of magnitude from 375 nm to 1 mm without the need for a rigid carrier, and provides a fabrication pathway to high performance nanostructured organic circuitry.

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“…Solution-based mass-printing technologies have been reported [22,23] for organic LAE production. The best circuit performances, though, have been achieved using batch-processing approaches derived from silicon technology [5,[24][25][26] and applied under clean room conditions. Such processes, however, require many deposition and patterning steps.…”

Section: Introductionmentioning

confidence: 99%