Physically Cross-Linked Homopolymer Ion Gels for High Performance Electrolyte-Gated Transistors.

A new type of physically cross-linked solid polymer electrolyte was demonstrated by using a poly(vinylidene fluoride) (PVDF) homopolymer in a room-temperature ionic liquid. The physical origins of gelation, specific capacitance, ionic conductivity, mechanical property, and capacitive charge modulation in organic thin-film electrochemical transistors were investigated systematically. Gelation occurs through bridging phase-separated homopolymer crystals by polymer chains in the composite electrolyte, thereby forming a rubbery network.

Self-Supporting Ion Gels for Electrochemiluminescent Sticker-Type Optoelectronic Devices.

Nowadays, there has been an increasing demand to develop low-cost, disposable or reusable display devices to meet and maximize short-term user convenience. However, the disposable device has unfortunately not materialized yet due to the light-emitting materials and fabrication process issues. Here, we report sticker-type electrochemiluminescent (ECL) device using self-supporting, light-emitting gel electrolytes.