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공과대학
화공신소재공학과
Journal papers
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A Semi-Crystalline Polymer Semiconductor with Thin Film Stretchability Exceeding 200%
Title
A Semi-Crystalline Polymer Semiconductor with Thin Film Stretchability Exceeding 200%
Authors
Kim Y.
;
Ahn H.
;
Yoo D.
;
Sung M.
;
Yoo H.
;
Park S.
;
Lee J.
;
Lee B.H.
Ewha Authors
이병훈
SCOPUS Author ID
이병훈
Issue Date
2023
Journal Title
Advanced Science
ISSN
2198-3844
Citation
Advanced Science vol. 10, no. 22
Keywords
bimodal crystalline structure
;
fluorination
;
intrinsically stretchable polymer semiconductors
;
stretchable electronics
;
thin film stretchability
Publisher
John Wiley and Sons Inc
Indexed
SCIE; SCOPUS
Document Type
Article
Abstract
Despite the emerging scientific interest in polymer-based stretchable electronics, the trade-off between the crystallinity and stretchability of intrinsically stretchable polymer semiconductors—charge-carrier mobility increases as crystallinity increases while stretchability decreases—hinders the development of high-performance stretchable electronics. Herein, a highly stretchable polymer semiconductor is reported that shows concurrently improved thin film crystallinity and stretchability upon thermal annealing. The polymer thin films annealed at temperatures higher than their crystallization temperatures exhibit substantially improved thin film stretchability (> 200%) and hole mobility (≥ 0.2 cm2 V−1 s−1). The simultaneous enhancement of the crystallinity and stretchability is attributed to the thermally-assisted structural phase transition that allows the formation of edge-on crystallites and reinforces interchain noncovalent interactions. These results provide new insights into how the current crystallinity–stretchability limitation can be overcome. Furthermore, the results will facilitate the design of high-mobility stretchable polymer semiconductors for high-performance stretchable electronics. © 2023 The Authors. Advanced Science published by Wiley-VCH GmbH.
DOI
10.1002/advs.202302683
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