EurekAlert September 14, 2020
Researchers in Sweden prepared one atom thin, electrically continuous platinum layers by physical vapor deposition on the carbon zero layer (buffer layer) grown epitaxially on silicon carbide. With a thin Pt layer, the electrical conductivity of the metal is strongly modulated when interacting with chemical analytes, due to charges being transferred to/from Pt. The strong interaction with chemical species, together with the scalability of the material, enables the fabrication of chemiresistor devices for electrical read‐out of chemical species with sub part‐per‐billion detection limits. This opens a route for resilient and high sensitivity chemical detection and can be the path for designing new heterogenous catalysts with superior activity and selectivity…read more. Open Access TECHNICAL ARTICLE
Atomically thin Pt as gas sensor… Credit: Advanced Materials Interface, 27 April 2020.