| 초록 |
Controlling the charge concentrations of two-dimensional (2D) materials is a critical requirement for realizing versatility and potential application of these materials in high-performance electronics and sensors. In order to exploit the novel chemical-sensing characteristics of 2D materials for sensitive and selective sensors, various functionalization methods are needed to ensure efficient doping of channels based on 2D materials. The gas-sensing performance of MoS2 has been significantly enhanced by controlled Au nanoparticle functionalization. MoS2 prepared by chemical exfoliation process was decorated with nanoparticles and the n-doping effect of Au nanoparticles was observed. The controlled n-doping effect enables the tuning of the sensing of hydrocarbon-based volatile organic compounds (VOCs) and oxygen-functionalized compounds by MoS2. A significant step has therefore been made with this study towards solving the limitations imposed by previous MoS2-based sensors, which mostly produce a single response to various VOC analytes. |
