Reusable Cellulose-Based Hydrogel Sticker Film Applied as Gate Dielectric in Paper Electrolyte-Gated Transistors
Reusable Cellulose-Based Hydrogel Sticker Film Applied as Gate Dielectric in Paper Electrolyte-Gated Transistors
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DOI：
10.1002/adfm.201606755
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发表时间：
2017-04-25
影响因子：
19
通讯作者：
Pereira, Luis
中科院分区：
文献类型：
--
作者：
Cunha, Ines;Barras, Raquel;Pereira, Luis
介绍了一种基于纤维素的可重复使用的环保型水凝胶电解质的新概念。所报道的电解质是通过使用LiOH/尿素水溶液体系在低温下对微晶纤维素进行简单、快速、低成本和环保的溶解方法来设计和制造的。纤维素溶液与羧甲基纤维素结合，然后再生和同时离子掺入。由于其高比电容(4-5u F cm(-2))、透明性和柔韧性，所制备的纤维素基自支撑电解质薄膜在生物传感器或电解液门控晶体管(EGTS)等柔性电化学器件中表现出有趣的应用特性。以层状纤维素基水凝胶电解质(CHS)为栅电介质，在玻璃上制备了铟-镓-锌-氧化物EGT，具有较低的工作电压(
A new concept for reusable eco-friendly hydrogel electrolytes based on cellulose is introduced. The reported electrolytes are designed and engineered through a simple, fast, low-cost, and eco-friendly dissolution method of microcrystalline cellulose at low temperature using an aqueous LiOH/urea solvent system. The cellulose solution is combined with carboxymethyl cellulose, followed by the regeneration and simultaneous ion incorporation. The produced free standing cellulose-based electrolyte films exhibit interesting properties for application in flexible electrochemical devices, such as biosensors or electrolyte-gated transistors (EGTs), because of their high specific capacitances (4-5 mu F cm(-2)), transparency, and flexibility. Indium-gallium-zinc-oxide EGTs on glass with laminated cellulose-based hydrogel electrolytes (CHEs) as the gate dielectric are produced presenting a low working voltage (