- 标题
- 摘要
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- 实验方案
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Ink‐Jet Printable, Self‐Assembled, and Chemically Crosslinked Ion‐Gel as Electrolyte for Thin Film, Printable Transistors
摘要： Electrolyte-gated transistors (EGTs) represent an interesting alternative to conventional dielectric-gating to reduce the required high supply voltage for printed electronic applications. Here, a type of ink-jet printable ion-gel is introduced and optimized to fabricate a chemically crosslinked ion-gel by self-assembled gelation, without additional crosslinking processes, e.g., UV-curing. For the self-assembled gelation, poly(vinyl alcohol) and poly(ethylene-alt-maleic anhydride) are used as the polymer backbone and chemical crosslinker, respectively, and 1-ethyl-3-methylimidazolium trifluoromethanesulfonate ([EMIM][OTf ]) is utilized as an ionic species to ensure ionic conductivity. The as-synthesized ion-gel exhibits an ionic conductivity of ≈5 mS cm?1 and an effective capacitance of 5.4 μF cm?2 at 1 Hz. The ion-gel is successfully employed in EGTs with an indium oxide (In2O3) channel, which shows on/off-ratios of up to 1.3 × 106 and a subthreshold swing of 80.62 mV dec?1.
关键词： printed electronics,ink-jet print,ion-gels,electrolyte-gated transistors,ionic liquids
更新于2025-09-11 14:15:04
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Viscoelastic change of block copolymer ion gels in a photo-switchable azobenzene ionic liquid triggered by light
摘要： A photo-switchable ionic liquid solvent bearing an azobenzene moiety induced a viscoelastic change of block copolymer ion gels by light. ABA triblock copolymers having poly(phenethyl methacrylate) and poly(benzyl methacrylate) as A blocks exhibited opposite photo-induced rheological responses although they had only a tiny structural difference in the alkyl chain length.
关键词： block copolymer,ion gels,light,viscoelastic change,ionic liquid,azobenzene,photo-switchable
更新于2025-09-04 15:30:14