Il-Doo Kim

TL;DR: In this article, a gate insulator is coupled to the source electrode, drain electrode, and gate electrode in a thin-film transistor (TFT) to operate at low operating voltage.

TL;DR: It is demonstrated that, in addition to high permittivity, CaCu3Ti4O12 has remarkably strong nonlinear current–voltage characteristics without the addition of any dopants.

TL;DR: TiO2 nanofiber sensors tested for NO2, in dry air, exhibited exceptional sensitivity showing with, for example, a 833% increase in sensor resistance when exposed to 500 ppb NO2 at 300 degrees C, consistent with a detection limit estimated to be well below 1 ppb.

TL;DR: In this article, a new route to suppress grain growth and tune the sensitivity and selectivity of nanocrystalline SnO2 fibers was presented, where the Pd-loaded sensors have 4 orders of magnitude higher resistivity and exhibit significantly enhanced sensitivity to H2 and lower sensitivity to NO2 compared to their unloaded counterparts.

TL;DR: This work demonstrates that optimization of the RGO loading and the operation temperature of RGO-SnO2 nanocomposite gas sensors enables highly sensitive and selective detection of breath markers for the diagnosis of diabetes and halitosis.