双通道技术在AlGaN/GaN HEMT中对未来生物传感应用的适用性

IF 3.3 3区 物理与天体物理 Q2 PHYSICS, CONDENSED MATTER
L. Arivazhagan , D. Nirmal , Anwar Jarndal , Hasina F. Huq , Subhash Chander , S. Bhagyalakshmi , Pavan Kumar Reddy , J. Ajayan , Arathy Varghese
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引用次数: 5

摘要

感知COVID-19,呼气冷凝水/唾液中的GOx(葡萄糖氧化酶),人体中的KIM(肾损伤分子)等生物分子以及体液中的pH值在当前情境以及过去十年中受到了极大的关注。因此,首次提出了AlGaN/GaN高电子迁移率晶体管(HEMT)的双通道技术,并通过生物传感应用证明了其适用性。基于SILVACO技术的基于数值固体模型的计算机辅助设计(TCAD)仿真已广泛用于研究和分析。比较了双通道器件与单通道器件的灵敏度,并从跨导的角度评价了双通道器件的性能。与单通道器件不同,双通道器件在栅极偏置方面表现出广泛的跨导范围。该器件记录的灵敏度为136%,比单通道器件的灵敏度高74%。因此,可以推断,灵敏度随着多通道的使用而增强,并且可以通过增加通道数量来提高灵敏度。这项研究的结果表明,所提出的传感器是未来生物传感应用的一个有希望的候选者,需要高检测限。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Applicability of double Channel Technique in AlGaN/GaN HEMT for future biosensing applications

Sensing COVID-19, GOx (glucose oxidase enzyme) in exhaled breath condensate/saliva, bio-molecules like KIM (Kidney Injury Molecule) in human body and pH value in human body fluids have gained huge attention in the present scenario as well as in the past decade. Hence, for the first time, double channel technique in AlGaN/GaN High Electron Mobility Transistor (HEMT) is proposed and its applicability is demonstrated by biosensing application. Simulation using SILVACO Technology Computer Aided Design (TCAD) based on numerical solid state models has been extensively used for investigation and analysis. The sensitivity of double channel device is compared with single channel device and its performance is evaluated in terms of the transconductance. Unlike the single channel device, double channel device exhibited wide range of transconductance with respect to gate bias. The device recorded a sensitivity of 136%, which is 74% higher than the sensitivity of single channel device. Hence, it is inferred that the sensitivity enhances with the use of multiple channels and could be increased by increasing the number of channels. The results of this research show that the proposed sensor stands a promising candidate for future biosensing applications that demand high detection limits.

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来源期刊
Superlattices and Microstructures
Superlattices and Microstructures 物理-物理:凝聚态物理
CiteScore
6.10
自引率
3.20%
发文量
35
审稿时长
2.8 months
期刊介绍: Micro and Nanostructures is a journal disseminating the science and technology of micro-structures and nano-structures in materials and their devices, including individual and collective use of semiconductors, metals and insulators for the exploitation of their unique properties. The journal hosts papers dealing with fundamental and applied experimental research as well as theoretical studies. Fields of interest, including emerging ones, cover: • Novel micro and nanostructures • Nanomaterials (nanowires, nanodots, 2D materials ) and devices • Synthetic heterostructures • Plasmonics • Micro and nano-defects in materials (semiconductor, metal and insulators) • Surfaces and interfaces of thin films In addition to Research Papers, the journal aims at publishing Topical Reviews providing insights into rapidly evolving or more mature fields. Written by leading researchers in their respective fields, those articles are commissioned by the Editorial Board. Formerly known as Superlattices and Microstructures, with a 2021 IF of 3.22 and 2021 CiteScore of 5.4
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