Field-Effect Transistor-Based Sensors

A special issue of Chemosensors (ISSN 2227-9040). This special issue belongs to the section "Materials for Chemical Sensing".

Deadline for manuscript submissions: 31 July 2024 | Viewed by 2489

Special Issue Editor


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Guest Editor
Department of Electronics Engineering, Chang Gung University, Taoyuan City 33302, Taiwan
Interests: sensitive membranes; ferroelectric materials; ion-sensitive field-effect transistors (ISFETs); extended-gate ield-effect transistors (EGFETs); thin-film transistors (TFTs); biosensors
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Special Issue Information

Dear Colleagues,

Recent decades have witnessed the huge successes of field-effect transistors (FETs) and their applications. Among them, FET-based sensors have shown promise in the field of food safety, industrial security, biochemistry, medicine, environmental, and health monitoring. Their potential to drive many technological advancements in this field is due to their label-free detection, real-time and rapid response, small-sample-volume requirement, and higher sensitivity and selectivity.

This type of sensor has become a promising candidate for applications requiring ultra-sensitivity and fast response times. The additional attributes of the sensors, like chemical functionality and flexibility in electrochemical properties, have led to their high-end implementation. Novel fabrication approaches, including different device designs, the synthesis of novel materials, and unconventional fabrication approaches, have been proposed to enable advanced applications needed for biosensors.

This Special Issue provides a platform on the recent progress and challenges in the field of FET-based sensors. Both original research papers, short communications, and review articles are welcome. We hope to offer inspiration for the future design of FET-based sensors.

Prof. Dr. Tung-Ming Pan
Guest Editor

Manuscript Submission Information

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Keywords

  • carbon nanotube
  • field-effect transistors
  • sensors
  • chemical
  • biological

Published Papers (1 paper)

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Research

12 pages, 2332 KiB  
Article
Fully Printed Organic Phototransistor Array with High Photoresponse and Low Power
by Yuan Tan, Xinwei Zhang, Rui Pan, Wei Deng, Jialin Shi, Tianxing Lu, Junye Zhang, Jiansheng Jie and Xiujuan Zhang
Chemosensors 2023, 11(4), 231; https://doi.org/10.3390/chemosensors11040231 - 07 Apr 2023
Viewed by 2324
Abstract
Organic phototransistors (OPTs) as optical chemical sensors have progressed excitingly in recent years, mainly due to the development of new materials, new device structures, and device interfacial engineering. Exploiting the maximum potential of low-cost and high-throughput fabrication of organic electronics and optoelectronics requires [...] Read more.
Organic phototransistors (OPTs) as optical chemical sensors have progressed excitingly in recent years, mainly due to the development of new materials, new device structures, and device interfacial engineering. Exploiting the maximum potential of low-cost and high-throughput fabrication of organic electronics and optoelectronics requires devices that can be manufactured in a fully printed way that also have a low operation voltage. In this work, we demonstrate a fully printed fabrication process that enables the realization of a high-yield (~90%) and low-voltage OPT array. By solution printing of a high-quality organic crystalline thin film on the pre-printed electrodes, we create a van der Waals contact between the metal and organic semiconductor, resulting in a small subthreshold swing of 445 mV dec−1 with a signal amplification efficiency over 5.58 S A−1. Our OPTs thus exhibit both a low operation voltage of −1 V and a high photosensitivity over 5.7 × 105, making these devices suitable for a range of applications requiring low power consumption. We further demonstrate the capability of the low-voltage OPT array for imaging and show high imaging contrasts. These results indicate that our fabrication process may provide an entry into integrated and low-power organic optoelectronic circuits fabricated by scalable and cost-effective methods for real-world applications. Full article
(This article belongs to the Special Issue Field-Effect Transistor-Based Sensors)
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