Nanosensors Based on a Single ZnO:Eu Nanowire for Hydrogen Gas Sensing.

ABSTRACT: Fast detection of hydrogen gas leakage or its release in different environments, especially in large electric vehicle batteries, is a major challenge for sensing applications. In this study, the morphological, structural, chemical, optical, and electronic characterizations of ZnO:Eu nanowire arrays are reported and discussed in detail. In particular, the influence of different Eu concentrations during electrochemical deposition was investigated together with the sensing properties and mechanism. Surprisingly, by using only 10 μM Eu ions during deposition, the value of the gas response increased by a factor of nearly 130 compared to an undoped ZnO nanowire and we found an H₂ gas response of ∼7860 for a single ZnO:Eu nanowire device. Further, the synthesized nanowire sensors were

SUBMITTER: Lupan C 

PROVIDER: S-EPMC9753046 | biostudies-literature | 2022 Sep

REPOSITORIES: biostudies-literature