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Sensing of Barrier Tissue Disruption with an Organic Electrochemical Transistor
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Sensing of Barrier Tissue Disruption with an Organic Electrochemical Transistor

Published on: February 10, 2014

High-performance vertical organic transistors.

Hans Kleemann1, Alrun A Günther, Karl Leo

  • 1Institut für Angewandte Photophysik, Technische Universität Dresden, 01069 Dresden, Germany, Website: www.iapp.de. hans.kleemann@iapp.de.

Small (Weinheim an Der Bergstrasse, Germany)
|May 3, 2013
PubMed
Summary
This summary is machine-generated.

High-performance vertical organic transistors using pentacene and C60 overcome limitations of horizontal devices. Photolithography simplifies fabrication, paving the way for large-area production of these promising organic thin-film transistors.

Keywords:
molecular devicesorganic thin-film transistorsshort channel effectsvertical organic thin-film transistors

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Area of Science:

  • Organic electronics
  • Semiconductor device physics

Background:

  • Horizontal organic thin-film transistors (OTFTs) face limitations in transconductance and cut-off frequency.
  • Vertical organic thin-film transistors (VOTFTs) offer potential but lack understanding of operational mechanisms and rely on complex self-assembly patterning, hindering large-area production.

Purpose of the Study:

  • To present high-performance VOTFTs using pentacene (p-type) and C60 (n-type).
  • To investigate the static current-voltage characteristics and scaling laws of these VOTFTs.
  • To demonstrate a simplified fabrication process using photolithography.

Main Methods:

  • Fabrication of VOTFTs using pentacene and C60 active layers.
  • Characterization of current-voltage behavior and device scaling.
  • Application of photolithography with fluorinated photoresist and solvent compounds for direct patterning onto organic materials.

Main Results:

  • Demonstrated high-performance VOTFTs with charge carrier injection-limited behavior.
  • Established fundamental scaling laws for the studied VOTFT architecture.
  • Achieved simplified fabrication via photolithography, avoiding complex self-assembly.

Conclusions:

  • VOTFTs exhibit remarkable performance, with operation governed by charge carrier injection.
  • Photolithographic patterning simplifies manufacturing, making VOTFTs suitable for future high-performance organic electronics applications.
  • The developed fabrication method is compatible with large-area production.