Hyeongkeun Kim

TL;DR: The roll-to-roll production and wet-chemical doping of predominantly monolayer 30-inch graphene films grown by chemical vapour deposition onto flexible copper substrates are reported, showing high quality and sheet resistances superior to commercial transparent electrodes such as indium tin oxides.

TL;DR: Graphene-based, flexible, transparent heaters based on large-scale graphene films synthesized by chemical vapor deposition on Cu foils show sheet resistance as low as ∼43 Ohm/sq with ∼89% optical transmittance, which are ideal as low-voltage transparentheaters.

TL;DR: In this article, the fabrication and design principles for using silver-nanowire (AgNW) networks as transparent electrodes for flexible film heaters are described, and a transparent film heater is constructed based on uniformly interconnected AgNW networks, which yields an effective and rapid heating of the film at low input voltages.

TL;DR: A flexible glucose sensor using a CVD-grown graphene-based field-effect-transistor (FET) is demonstrated, which provides excellent fitting to a model curve even when deformed, high resolution, and continuous real-time monitoring.

TL;DR: In this paper, polypyrrole (PPy)/carbon nanotube (CNT) composite electrodes are fabricated on ceramic fabrics for electrochemical capacitor applications, and the morphology of the PPy-CNTs on the ceramic fabrics is confirmed by SEM and TEM, and electrochemical characteristics are investigated by cyclic voltammetry and galvanostatic charge-discharge tests.