Chemiresistive-based carbon dioxide sensor with enhanced sensitivity

In this work, we report on a highly sensitive carbon dioxide sensor that can operate at low temperatures with rapid detection capabilities. The sensor was fabricated by depositing hydrothermally prepared graphene oxide/cupric oxide nanocomposite onto a glass substrate by a spin coating technique. Morphology, chemical state, and atomic concentration of sensing material were studied by FESEM and XPS analysis. The fabricated sensor shows a...