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- W4387080135 abstract "Semiconducting polymer chains constitute the building blocks for a wide range of electronic materials and devices. However, most of their electrical characteristics at single-molecule level have received little attention. Elucidating these properties could help understanding performance limits and enable new applications. Here we exploit coupled ionic-electronic charge transport to measure the quasi-one-dimensional electrical current through long single conjugated polymer chains as they form transient contacts with electrodes separated by ∼10 nm. Fluctuations between internal conformations of the individual polymers are resolved as abrupt, multi-level switches in the electrical current. This behavior is consistent with our theoretical simulations based on the worm-like-chain model for semi-flexible polymers. In addition to probing the intrinsic properties of single semiconducting polymer chains, our results provide an unprecedented window into the dynamics of random-coil polymers and enable the use of semiconducting polymers as electrical labels for single-molecule (bio)sensing assays. This article is protected by copyright. All rights reserved." @default.
- W4387080135 created "2023-09-28" @default.
- W4387080135 creator A5005320455 @default.
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- W4387080135 date "2023-09-27" @default.
- W4387080135 modified "2023-10-03" @default.
- W4387080135 title "Stochastic Electrical Detection of Single Ion‐Gated Semiconducting Polymers" @default.
- W4387080135 doi "https://doi.org/10.1002/adma.202307912" @default.
- W4387080135 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/37758267" @default.
- W4387080135 hasPublicationYear "2023" @default.
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