Jongwon Yoon

TL;DR: A high-performance gas sensor constructed using atomic-layered MoS2 synthesised by chemical vapour deposition (CVD) was developed and the in situ PL characterisation of the changes in the peaks corresponding to charged trions and neutral excitons via gas adsorption processes was used to elucidate the mechanisms of charge transfer between theMoS2 and the gas molecules.

TL;DR: This novel sensing structure based on a 2D heterostructured device on a flexible substrate promises to provide a simple route to an essential sensing platform for wearable electronics.

TL;DR: The high stability in electronic performance of the devices upon bending up to ±2.2 mm in compressive and tensile modes, and the ability to recover electrical properties after degradation upon annealing, reveal the efficacy of using 2D materials for creating highly flexible and transparent devices.

TL;DR: In this paper, the role of metal nanoparticles (NPs) on graphene-based devices was investigated in terms of gas-sensing characteristics of NO2 and NH3, and flexible gas sensing was also realized for future applications.

TL;DR: A bifunctional sensor within a single MoS2 device to detect photons and gas molecules in sequence is finally demonstrated, paving a way toward a versatile sensing platform for a futuristic multifunctional sensors.