Protic Ionic Liquids: A General Strategy for Enhancing Electrical Conductivity and Stretchability of Conducting Polymer Thin Films (Adv. Funct. Mater. 14/2025)
Kyungjin Kim, Minwoo Han, Hyungju Ahn, Minji Kim, Jiyun Noh, Eunseo Noh, Haemin Choi, Seoung Ho Lee, Byoung Hoon Lee
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Abstract
Protic Ionic Liquids
In article number 2420607, Seoung Ho Lee, Byoung Hoon Lee, and co-workers develop strain sensors with a wide dynamic range using PEDOT:PSS-based stretchable transparent conductors, which demonstrate both controlled and enhanced electrical conductivity and stretchability. These properties are tuned through the use of protic ionic liquids with varying alkyl chains, which outperform conventional aprotic ionic liquids due to the formation of well-ordered crystalline PEDOT domains and hydrogen bonding interactions with PEDOT:PSS.
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