Commercially applicable, solution-processed organic TFT and its backplane application in electrophoretic displays

Park, Chang Bum; Lee, Jung Eun; Na, HyungIl; Kim, Kyung Min; Yoo, Soon Sung; Yang, Myoung Su

doi:10.1016/j.sse.2015.03.018

Cited by 5 publications

(1 citation statement)

References 26 publications

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“…Therefore, various materials, such as organic materials and carbon nanotubes, have been investigated as alternatives to ITO [10][11][12][13][14][15][16][17]. In particular, the practicality of organic materials has been recognised in organic electroluminescence devices and organic thin-film solar cells [18][19][20][21]. Hence, we focused on poly (3,4-ethylenedioxythiophene)/poly(styrenesulfonate) (PEDOT:PSS), which is an organic conductive material with high flexibility and conductivity, as an alternative to ITO.…”

Section: Introductionmentioning

confidence: 99%

Effect of Surfactant Addition on Organic Transparent Conductive Films Fabricated by Inkjet Printing Method

Nitta

Chosa

Takeda

2021

Electronic Materials

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Recently, active research has been conducted on the development of flexible electronic devices. Hence, the transparent conductive film (TCF), an essential component of the device, must also be flexible. However, the commonly used indium tin oxide (ITO) TCF lacks flexibility and contains rare metal, making resource depletion an issue. Therefore, we focused on poly(3,4-ethylenedioxythiophene)/poly(styrenesulfonate) (PEDOT:PSS), which has high flexibility and conductivity. Flexible TCFs have been fabricated by coating PEDOT:PSS on polyethylene naphthalate substrates using an inkjet printer. However, the current issue in such fabrication is the effect of the interface state on the transparency and conductivity of the thin film. In this study, we investigated the effect of surfactant in addition to polar solvents on the properties of thin films fabricated with PEDOT:PSS ink. Although the electrical conductivity was reduced, the transmittance remained above 90%. Thus, these results are comparable to those of ITO TCFs for practical use in terms of optical properties.

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