Asymmetric Schottky Barrier-Generated MoS₂/WTe₂ FET Biosensor Based on a Rectified Signal.

ABSTRACT: Field-effect transistor (FET) biosensors can be used to measure the charge information carried by biomolecules. However, insurmountable hysteresis in the long-term and large-range transfer characteristic curve exists and affects the measurements. Noise signal, caused by the interference coefficient of external factors, may destroy the quantitative analysis of trace targets in complex biological systems. In this report, a "rectified signal" in the output characteristic curve, instead of the "absolute value signal" in the transfer characteristic curve, is obtained and analyzed to solve these problems. The proposed asymmetric Schottky barrier-generated MoS₂/WTe₂ FET biosensor achieved a 10⁵ rectified signal, sufficient reliability and stability (maintained for

SUBMITTER: Zhang X 

PROVIDER: S-EPMC10820193 | biostudies-literature | 2024 Jan

REPOSITORIES: biostudies-literature