二维材料场效应晶体管生化传感器件的研究进展

场效应晶体管（Field effect transistor, FET）生化传感器件具有噪声小、功耗低、免标记、易于集成和小型化等优点,在环境监测、食品安全、疾病诊断和临床治疗等领域具有良好的应用前景。二维材料作为新一代FET生化传感器件的沟道材料,具有原子级厚度、高载流子迁移率、高比表面积和可调带隙等特性,可进一步提升FET生化传感器件的性能和拓展器件应用场景,推动FET生化传感器件的快速发展。本文综述了近年来二维材料FET生化传感器件的发展历程和最新进展,分析了二维材料FET生化传感器件的挑战和发展前景,以期为研究人员设计新的生化传感器件提供思路,促进生化传感技术的进一步发展。     

Black phosphorus-based field effect transistor devices for Ag ions detection

Black phosphorus(BP), an attractive two-dimensional(2 D) semiconductor, is widely used in the fields of optoelectronic devices, biomedicine, and chemical sensing. Silver ion(Ag~+), a commonly used additive in food industry, can sterilize and keep food fresh. But excessive intake of Ag~+will harm human health. Therefore, high sensitive, fast and simple Ag+detection method is significant. Here, a high-performance BP field effect transistor(FET) sensor is fabricated for Ag~+detection with high sensitivity, rapid detection speed, and wide detection concentration range. The detection limit for Ag~+is 10~(-10) mol/L. Testing time for each sample by this method is 60 s. Besides, the mechanism of BP-FET sensor for Ag~+detection is investigated systematically. The simple BP-FET sensor may inspire some relevant research and potential applications, such as providing an effective method for the actual detection of Ag~+, especially in witnessed inspections field of food.