Design and Simulation of Dielectrically Modulated Dual Material Gate-Stack Double-Gate FinFET Biosensor

IF 1.8 4区材料科学 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY ECS Journal of Solid State Science and Technology Pub Date : 2024-05-10 DOI:10.1149/2162-8777/ad458d

Asmita Pattnaik, S. K. Mohapatra, Ananya Dastidar, Om Prakash Acharya, Naglaa AbdelAll, Basma A El-Badry, Ghada A. Khouqeer, Abdullah N. Alodhayb

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Abstract

This study developed and evaluated a dual-material gate stack double-gate FinFET-based biosensor (DM-GS-DG FinFET). The device was dielectrically modulated and investigated for molecules, such as streptavidin, gluten, zein, hen egg-white lysozyme, and acetylene tetrabromide, based on current, threshold voltage, subthreshold swing, and switching sensitivity. The influence of charged and neutral biomolecules within the nanocavity on the electric, analog, and radiofrequency parameters was recorded. This study was conducted relative to different dielectric κ-values of 12 in terms of the percentage sensitivity improvement (SI%). The results reveal that the percentage of sensitivity I_ON improves effectively, especially for low κ-values, compared with other sensitivity measures. All the sensitivity evaluations indicated that DM-GS-DG-FinFET combined with biomolecules is a viable option for biosensing purposes.

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电介质调制双材料栅极栈双栅极 FinFET 生物传感器的设计与仿真

本研究开发并评估了基于双材料栅极堆叠双栅极 FinFET 的生物传感器（DM-GS-DG FinFET）。根据电流、阈值电压、阈下摆动和开关灵敏度，对该器件进行了介电调制，并对链霉亲和素、谷蛋白、玉米蛋白、母鸡卵白溶菌酶和四溴乙炔等分子进行了研究。记录了纳米腔内带电和中性生物分子对电学、模拟和射频参数的影响。这项研究以灵敏度提高百分比（SI%）来表示 12 个不同的介电κ值。结果显示，与其他灵敏度测量方法相比，ION 灵敏度百分比得到了有效改善，尤其是在低 κ 值的情况下。所有灵敏度评估结果都表明，DM-GS-DG-FinFET 与生物分子相结合是生物传感的可行选择。

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来源期刊

ECS Journal of Solid State Science and Technology MATERIALS SCIENCE, MULTIDISCIPLINARY-PHYSICS, APPLIED

CiteScore

4.50

自引率

13.60%

发文量

455

期刊介绍： The ECS Journal of Solid State Science and Technology (JSS) was launched in 2012, and publishes outstanding research covering fundamental and applied areas of solid state science and technology, including experimental and theoretical aspects of the chemistry and physics of materials and devices. JSS has five topical interest areas: carbon nanostructures and devices dielectric science and materials electronic materials and processing electronic and photonic devices and systems luminescence and display materials, devices and processing.