Molecular interaction-assisted stretchability enhancement of polymer conductors and semiconductors
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초록
내용
Intrinsically stretchable polymer conductors and semiconductors, which are electrically conductive and malleable under mechanical strain without the aid of chemical additives and kirigami patterning, are key elements in polymer-based stretchable electronics. In this presentation, I will introduce our recent progress on intrinsically stretchable polymer conductors and semiconductors with controlled electrical and mechanical properties. Specifically, the σ and stretchability of poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) were improved by protic ionic liquids (p-ILs) due to favorable ion exchange and hydrogen bonding. In addition, a semi-crystalline polymer semiconductor based on cyclopentadithiophene and fluorinated benzotriazole showed simultaneously improved crystallinity, μ, and stretchability due to thermally-assisted structural phase transition. Our results will facilitate the design of high-performance stretchable polymer conductors and semiconductors.