Enhanced Response for Foodborne Pathogens Detection by Au Nanoparticles Decorated ZnO Nanosheets Gas Sensor.

is a hazardous foodborne pathogen that is able to cause acute meningitis, encephalitis, and sepsis to humans. The efficient detection of 3-hydroxy-2-butanone, which has been verified as a biomarker for the exhalation of , can feasibly evaluate whether the bacteria are contained in food. Herein, we developed an outstanding 3-hydroxy-2-butanone gas sensor based on the microelectromechanical systems using Au/ZnO NS as a sensing material.

The in-plane metal contacted 5.1 nm Janus WSSe Schottky barrier field-effect transistors.

Edge contact between two-dimensional materials and metal can achieve small contact resistance because of strong interaction. In this work, we investigated the electronic transport of in-plane (IP) heterojunctions based on Ti/WSSe and Sn/WSSe using first principle calculations. The results showed that the interface bonding and metallization are found on the IP Ti/WSSe and Sn/WSSe contact interface, indicating that the Ohmic contacts are formed between Ti, Sn and WSSe.

The effect of different covalent bond connections and doping on transport properties of planar graphene/MoS/graphene heterojunctions.

The electronic transport properties of in-plane graphene/MoS/graphene heterojunctions are studied using density functional theory and the nonequilibrium Green's function method. It is found that different covalent bond connections cause different electron distributions, such as accumulation or depletion, on the contact surface. The C-S structure exhibits more electron accumulation and depletion, indicating that the electrons can easily transfer from MoS to graphene.