Highly conductive and stretchable poly(dimethylsiloxane):poly(3,4-ethylenedioxythiophene):poly(styrene sulfonic acid) blends for organic interconnects
- Authors
- Noh, Jin-Seo
- Issue Date
- 2014
- Publisher
- ROYAL SOC CHEMISTRY
- Citation
- RSC ADVANCES, v.4, no.4, pp.1857 - 1863
- Journal Title
- RSC ADVANCES
- Volume
- 4
- Number
- 4
- Start Page
- 1857
- End Page
- 1863
- URI
- https://scholarworks.bwise.kr/gachon/handle/2020.sw.gachon/13990
- DOI
- 10.1039/c3ra46087h
- ISSN
- 2046-2069
- Abstract
- Naturally immiscible PEDOT:PSS and PDMS, which are a typical conducting polymer and an transparent elastomer, respectively, were blended by the support of PDMS-b-PEO. A block copolymer, PDMS-b-PEO, consisting of hydrophobic PDMS backbones and hydrophilic PEO side chains, significantly improved the miscibility of PEDOT: PSS and PDMS. At an optimal PDMS-b-PEO concentration of 30%, a cured PEDOT: PSS: PDMS film was found to be comprised of three-dimensional PDMS networks and a PEDOT: PSS phase filling in between the networks. The optimal blend film exhibited a conductivity comparable to a pure PEDOT: PSS film and a maximum strain to rupture of about 75%. It was also demonstrated that interconnects made of this blend film functioned well irrespective of the substrate and the pattern size, and could reproducibly operate under strains up to 50%. These results indicate that the PEDOT: PSS: PDMS blends could be a practical choice for organic interconnects for future stretchable electronics.
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