Photolithographic patterning of highly conductive PEDOT:PSS and its application in organic light-emitting diodes

Ouyang, Shihong; Xie, Yingtao; Wang, Dongping; Zhu, Dong Mei; Xu, Xin; Tan, Te; DeFranco, John A.; Fong, Hon Hang

doi:10.1002/polb.23547

Cited by 25 publications

(16 citation statements)

References 40 publications

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“…In another example, we used the commercially available conductive polymer PEDOT:PSS, widely used in many applications. [6,51] A closely similar pattern as that obtained with PEDOT:PSTFSI is observed (Figure 4b). Adhesion energies for these two experiments, obtained using the wrinkling pattern, remain in the range of values measured for PEDOT:PSTFSI films (Figure 3e).…”

Section: Discussionsupporting

confidence: 84%

Delamination and Wrinkling of Flexible Conductive Polymer Thin Films

Xie

Glasser

Shinde

et al. 2021

Adv Funct Materials

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Polymer based conductive and transparent thin films are an important class of functional materials at the heart of flexible organic electronic devices. These flexible films are prone to degradation and to mechanical instability leading to the formation of blisters, wrinkles, and cracks. This is detrimental to their use especially in the case of multilayer devices. Here, it is shown that a simple water or solvent drop deposited on such films gives rise to a buckling instability and the formation of several folds due to the tendency of these films to swell in contact with the solvent. A phase diagram of the instability portraying its domain of existence, and thus the means to inhibit it, is proposed. By depositing drops on such films and observing the instability, material parameters such as the elastic modulus of the thin films or their energy of adhesion to the substrate can be estimated reliably. Further, the instability can be harnessed to pattern surfaces at low cost giving rise to percolated and more conductive pathways in the conductive polymer films under scrutiny.

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Section: Discussionsupporting

confidence: 84%

Delamination and Wrinkling of Flexible Conductive Polymer Thin Films

Xie

Glasser

Shinde

et al. 2021

Adv Funct Materials

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“…Development of patterning techniques for organic materials is another vein of research receiving a large amount of attention. These patterning techniques include laser cutting [3] , ink jet printing [4] , screen printing [5] , transfer printing [6] and photolithography [7][8][9][10][11] . Each of these methods has its respective advantages and disadvantages.…”

mentioning

confidence: 99%

Patterning and Conductivity Modulation of Conductive Polymers by UV Light Exposure

Edberg

Iandolo

Brooke

et al. 2016

Adv Funct Materials

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We demonstrate a novel patterning technique of conductive polymers produced by vapor phase polymerization. The method involves exposing an oxidant film to UV light which changes the local chemical environment of the oxidant and subsequently the polymerization kinetics. This procedure is used to control the conductivity in the conjugated polymer poly(3,4-ethylenedioxythiophene):tosylate (PEDOT:Tos) by more than 6 orders of magnitude in addition to producing high resolution patterns and optical gradients. We investigate the mechanism behind the modulation in the polymerization kinetics by UV light irradiation as well as the properties of the resulting polymer.

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“…Using fluorinated provided by Orthogonal Inc., we systematically studied the influence of the patterning processes towards PEDOT:SS [26]. Both the conductivity and surface Journal of Nanomaterials 7 property of PEDOT:PSS remained the same after patterning using fluorinated materials.…”

Section: Orthogonal Solvents and Specially Tailored Photo Imaging Matmentioning

confidence: 99%

Surface Patterning of PEDOT:PSS by Photolithography for Organic Electronic Devices

Ouyang

Xie

Wang

et al. 2015

Journal of Nanomaterials

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Along with the development of organic electronics, conductive polymer of PEDOT:PSS has been attracting more and more attention because they possess various novel electrical, optical, and mechanical properties, which render them useful in modern organic optoelectronic devices. Due to its organic nature, it is lightweight and can be fabricated into flexible devices. For better device processing and integrating, it is essential to tune their surface morphologies, and photolithography is the best choice at present. In this paper, current PEDOT:PSS patterning approaches using photolithography are reviewed, and some of our works are also briefly introduced. Appropriate photolithographic patterning process for PEDOT:PSS will enable its application in future organic electronics.

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Photolithographic patterning of highly conductive PEDOT:PSS and its application in organic light-emitting diodes

Cited by 25 publications

References 40 publications

Delamination and Wrinkling of Flexible Conductive Polymer Thin Films

Delamination and Wrinkling of Flexible Conductive Polymer Thin Films

Patterning and Conductivity Modulation of Conductive Polymers by UV Light Exposure

Surface Patterning of PEDOT:PSS by Photolithography for Organic Electronic Devices

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