A broad-spectrum gas sensor based on correlated two-dimensional electron gas.

ABSTRACT: Designing a broad-spectrum gas sensor capable of identifying gas components in complex environments, such as mixed atmospheres or extreme temperatures, is a significant concern for various technologies, including energy, geological science, and planetary exploration. The main challenge lies in finding materials that exhibit high chemical stability and wide working temperature range. Materials that amplify signals through non-chemical methods could open up new sensing avenues. Here, we present the discovery of a broad-spectrum gas sensor utilizing correlated two-dimensional electron gas at a delta-doped LaAlO₃/SrTiO₃ interface with LaFeO₃. Our study reveals that a back-gating on this two-dimensional electron gas can induce a non-volatile metal to insulator t

SUBMITTER: Hong Y 

PROVIDER: S-EPMC10739975 | biostudies-literature | 2023 Dec

REPOSITORIES: biostudies-literature