Ji-Eun Kim

TL;DR: One way of energy harvesting without such restraints is to utilize piezoelectric materials that can convert vibrational and mechanical energy sources from human activities such as pressure, bending, and stretching motions into electrical energy.

TL;DR: The microscopic origin of the bipolar resistive switching behavior was elucidated and is attributed to rupture and formation of conducting filaments at the top amorphous interface layer formed between the graphene oxide film and the top Al metal electrode, via high-resolution transmission electron microscopy and in situ X-ray photoemission spectroscopy.

TL;DR: In this article, a stable dispersion of reduced graphene in various organic solvents was achieved via noncovalent functionalization with amine-terminated polymers, which was obtained by chemical reduction of graphene oxide in aqueous media and was vacuum filtered to generate reduced graphene sheets.

TL;DR: The liquid crystallinity of graphene oxide offers a versatile route to control the molecular organization and the corresponding properties of the carbon-based materials.

TL;DR: An overview of the practical benefits from chemical modification/doping, including the controllability of electronic energy level, charge carrier density, surface energy and surface reactivity for diverse advanced applications is presented, namely flexible electronics/optoelectronics, energy conversion/storage, nanocomposites, and environmental remediation.