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  4. Sequential manufacturing via intra-additive hybrid materials approach for fully roll-to-roll processed flexible organic thin film transistors
 
research article

Sequential manufacturing via intra-additive hybrid materials approach for fully roll-to-roll processed flexible organic thin film transistors

Jeong, Hakyung
•
Noh, Youngwook
•
Kim, Jaemin  
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December 1, 2021
Journal Of Manufacturing Processes

Conventional conductive films that are used as electrodes in organic thin film transistors (OTFTs) are susceptible to mechanical deformation, limiting the applicability of such films in flexible wearable electronic devices. To address this limitation, a hybrid conductive film (HCF) consisting of silver nanowires (NWs) and poly(3,4-ethylenedioxythiophene) doped with poly(styrene sulfonate) (PEDOT:PSS) fabricated through roll-to-roll (R2R) slot-die coating is presented for use as a gate electrode in OTFTs. Mechanical stability compares by bending and taping test measurement quantitatively. Coating flow rate significantly influences sheet resistance and transmittance. A performance evaluation of the OTFTs with the Ag NW/PEDOT:PSS HCF as the gate electrode shows that the charge carrier mobility and on/off current ratio are 2.168 cm(2) V-1 s(-1) and 6 x 10(5), respectively. In addition, the HCF is highly flexible, and the HCF-based OTFTs exhibit 57% less mobility reduction than a conventional OTFT based on silver ink after 50,000 bending cycles with a 2 mm bending radius. These results highlight the potential of the fabricated HCF as an electrode material for flexible electronic devices.

  • Details
  • Metrics
Type
research article
DOI
10.1016/j.jmapro.2021.10.001
Web of Science ID

WOS:000714531400003

Author(s)
Jeong, Hakyung
Noh, Youngwook
Kim, Jaemin  
Ko, Sunglim
Lee, Dongjin
Date Issued

2021-12-01

Publisher

ELSEVIER SCI LTD

Published in
Journal Of Manufacturing Processes
Volume

72

Start page

138

End page

147

Subjects

Engineering, Manufacturing

•

Engineering

•

silver nanowires

•

poly(3,4-ethylenedioxythiophene) doped with poly(styrene sulfonate)

•

hybrid conductive films

•

flexible organic thin film transistors

•

roll-to-roll processes

•

conductive films

•

performance

•

gate

•

transparent

•

deposition

•

optimization

•

improvement

•

electrodes

•

lamination

•

roughness

Editorial or Peer reviewed

REVIEWED

Written at

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November 20, 2021
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/183076
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