Flexible Monolayer Molecular Crystal‐Field Effect Transistors for Ultrasensitive and Selective Detection of Dimethoate
Fei Qiu, Jie Liu, Hantang Zhang, Haiyang Li, Jian‐Hong Liu, Xiaosong Shi, Chunlei Li, Yanjun Shi, Yuanyuan Hu, Yunlong Guo, Xike Gao, Shiyun Ai, Lang Jiang
Abstract
Abstract Monolayer molecular crystals (MMC) of NDI3HU‐DTYM2 are grown on flexible substrates for constructing organic field effect transistors (OFET) as sensors to detect dimethoate. Benefitting from the ultra‐thin thickness of monolayer and highly crystalline nature, the MMC‐OFET based dimethoate sensors exhibit an ultrahigh detection limit of 0.60 ppb. The devices also show excellent conformal ability on various curved surfaces with negligible performance degradation. This work offers a promising flexible candidate for the fast and efficient detection of organophosphorus pesticides.
Topics & Concepts
DimethoateMonolayerMaterials scienceOrganic field-effect transistorDetection limitTransistorField-effect transistorNanotechnologyOptoelectronicsCrystal (programming language)PesticideChromatographyChemistryComputer scienceElectrical engineeringAgronomyBiologyProgramming languageVoltageEngineeringAnalytical Chemistry and SensorsLuminescence and Fluorescent MaterialsConducting polymers and applications