Stretchable Polymer Gate Dielectric with Segmented Elastomeric Network for Organic Soft Electronics
| Autor: | Hyungju Ahn, Byeong-Gyu Chae, Eunjoo Song, Seon Baek Lee, Boseok Kang, Kilwon Cho |
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| Rok vydání: | 2018 |
| Předmět: |
Materials science
Dielectric strength General Chemical Engineering Gate dielectric Stretchable electronics 02 engineering and technology General Chemistry Dielectric Electrical treeing 010402 general chemistry 021001 nanoscience & nanotechnology Elastomer 01 natural sciences 0104 chemical sciences Resist Natural rubber visual_art Materials Chemistry visual_art.visual_art_medium Composite material 0210 nano-technology |
| Zdroj: | Chemistry of Materials. 30:6353-6360 |
| ISSN: | 1520-5002 0897-4756 |
| DOI: | 10.1021/acs.chemmater.8b02388 |
| Popis: | Stretchable electronics has emerged as a key technology for human-friendly soft electronic applications. However, the difficulty of preparing stretchable gate dielectrics is a major impediment to the realization of stretchable electronic devices. Here, we present a stretchable polymer gate dielectric for use in stretchable organic thin-film transistors (OTFTs). Our strategy is to form a segmented elastomeric network inside an end-functionalized reactive liquid rubber with a high dielectric constant by using an organosilane cross-linking agent. The developed dielectric layer consists of hard segments of self-organized nanocrystals and soft rubber segments. The nanocrystals distributed in the rubber matrix resist the growth of electrical treeing inside the film and thus significantly increase the dielectric strength and reduce the leakage current density (∼10–8 A cm–2 at 2.0 MV cm–1). The superior insulating properties are maintained well during tensile stretching with moderate strains e ≤ 30%. Furthermore,... |
| Databáze: | OpenAIRE |
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