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Modelling of thin-film transistor for glucose sensing application

Electrochemical sensor exploiting thin-film transistor (TFT) technology has emerged as attractive candidate in the field of healthcare monitoring. Despite the remarkable advances in oxide TFT recently over large-area, simpler and low-cost fabrication, the fundamental study of TFT design and performa...

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Main Authors: Rezali, Fazliyatul Azwa Md, Wan Muhamad Hatta, Sharifah Fatmadiana, Soin, Norhayati
Format: Conference or Workshop Item
Published: IEEE 2022
Subjects:
TK Electrical engineering. Electronics Nuclear engineering
Online Access:http://eprints.um.edu.my/41271/
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spelling my.um.eprints.412712023-08-18T08:22:12Z http://eprints.um.edu.my/41271/ Modelling of thin-film transistor for glucose sensing application Rezali, Fazliyatul Azwa Md Wan Muhamad Hatta, Sharifah Fatmadiana Soin, Norhayati TK Electrical engineering. Electronics Nuclear engineering Electrochemical sensor exploiting thin-film transistor (TFT) technology has emerged as attractive candidate in the field of healthcare monitoring. Despite the remarkable advances in oxide TFT recently over large-area, simpler and low-cost fabrication, the fundamental study of TFT design and performance remains elusive for both practical application and upcoming development. In order to study the I-V characteristics of the TFT device for glucose sensing, a 2D model for n-type amorphous InGaZnO (a-IGZO) TFT is simulated using COMSOL Multiphysics. In this paper, the dependence of electrical characteristic of TFT on IGZO thickness and channel length are determined. It can be observed that the threshold voltage shifted negatively with increasing IGZO thickness and the drain current performance improves tremendously after reducing the channel length by half. As the glucose enzymatic reaction is adapted into TFT model, the effect of various glucose concentrations has been investigated on output characteristics, which shows the device able to detect glucose concentration ranging from 0.001 to 10 mmol/L. The high sensitivity of the device especially in terms of low limit detection could covers the glucose concentration between normal and diabetic patients, hence suggested the possibility of monitoring glucose level in the body. IEEE 2022 Conference or Workshop Item PeerReviewed Rezali, Fazliyatul Azwa Md and Wan Muhamad Hatta, Sharifah Fatmadiana and Soin, Norhayati (2022) Modelling of thin-film transistor for glucose sensing application. In: 2022 IEEE International Conference On Semiconductor Electronics (ICSE 2022), 15-17 August, 2022, ELECTR Network.
institution Universiti Malaya
building UM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaya
content_source UM Research Repository
url_provider http://eprints.um.edu.my/
topic TK Electrical engineering. Electronics Nuclear engineering
spellingShingle TK Electrical engineering. Electronics Nuclear engineering
Rezali, Fazliyatul Azwa Md
Wan Muhamad Hatta, Sharifah Fatmadiana
Soin, Norhayati
Modelling of thin-film transistor for glucose sensing application
description Electrochemical sensor exploiting thin-film transistor (TFT) technology has emerged as attractive candidate in the field of healthcare monitoring. Despite the remarkable advances in oxide TFT recently over large-area, simpler and low-cost fabrication, the fundamental study of TFT design and performance remains elusive for both practical application and upcoming development. In order to study the I-V characteristics of the TFT device for glucose sensing, a 2D model for n-type amorphous InGaZnO (a-IGZO) TFT is simulated using COMSOL Multiphysics. In this paper, the dependence of electrical characteristic of TFT on IGZO thickness and channel length are determined. It can be observed that the threshold voltage shifted negatively with increasing IGZO thickness and the drain current performance improves tremendously after reducing the channel length by half. As the glucose enzymatic reaction is adapted into TFT model, the effect of various glucose concentrations has been investigated on output characteristics, which shows the device able to detect glucose concentration ranging from 0.001 to 10 mmol/L. The high sensitivity of the device especially in terms of low limit detection could covers the glucose concentration between normal and diabetic patients, hence suggested the possibility of monitoring glucose level in the body.
format Conference or Workshop Item
author Rezali, Fazliyatul Azwa Md
Wan Muhamad Hatta, Sharifah Fatmadiana
Soin, Norhayati
author_facet Rezali, Fazliyatul Azwa Md
Wan Muhamad Hatta, Sharifah Fatmadiana
Soin, Norhayati
author_sort Rezali, Fazliyatul Azwa Md
title Modelling of thin-film transistor for glucose sensing application
title_short Modelling of thin-film transistor for glucose sensing application
title_full Modelling of thin-film transistor for glucose sensing application
title_fullStr Modelling of thin-film transistor for glucose sensing application
title_full_unstemmed Modelling of thin-film transistor for glucose sensing application
title_sort modelling of thin-film transistor for glucose sensing application
publisher IEEE
publishDate 2022
url http://eprints.um.edu.my/41271/
_version_ 1775622747999698944
score 13.211869

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