Flexible Monolayer Molecular Crystal‐Field Effect Transistors for Ultrasensitive and Selective Detection of Dimethoate

Qiu, Fei; Liu, Jie; Zhang, Hantang; Li, Haiyang; Liu, Jianghong; Shi, Xiaosong; Li, Chunlei; Shi, Yanjun; Hu, Yuanyuan; Guo, Yunlong; Gao, Xike; Ai, Shiyun; Jiang, Lang

doi:10.1002/aelm.202000579

Cited by 25 publications

(24 citation statements)

References 59 publications

(38 reference statements)

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“…Jiang, Ai, Zhang, and coworkers reported a highly selective monolayer molecular crystals (MMCs) flexible OFET sensor toward the detection of dimethoate, a typical organophosphorus pesticides. 93 As shown in Figure 9F, the active layer was NDI3HU-DTYM2. An ultrahigh LOD of 0.6 ppm dimethoate was obtained, thanks to the ultra-thin thickness of MMC combined with a highly crystalline nature (Figure 9G,H).…”

Section: Other Sensors In Gas Phasementioning

confidence: 97%

“…(G and H) Reproduced with permission. 93 Copyright 2020, Wiley-VCH 1 ppb, thereby promising for the fabrication of OFET sensors. Sonar et al developed a new composite channel material based on the elevated surface area and controllable pore size of MOFs for the detection of explosive vapors, such as trinitrotoluene (TNT), nitromethane (NM), 1,3,5-trinitro-1,3,5-triazacyclohexane (RDX), nitrobenzene (NB), and dinitrobenzene (DNB).…”

Section: Other Sensors In Gas Phasementioning

confidence: 99%

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Recent progress in organic field‐effect transistor‐based chem/bio‐sensors

Luo

Liu

2022

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Recent decades have witnessed the huge successes of organic field‐effect transistors (OFETs) and their applications. Among them, OFET‐based sensors have shown promising applications in the field of food safety, industrial security, environmental, and health monitoring. This is due to their advantages in solution processability, flexibility, light weight, and variety in molecular design. This review highlights recent progress in OFET‐based chemical and biological sensors in gas and liquid phase, especially for the past 5 years. The analytes range from small molecules to large biomolecules. The optimizations of OFET devices for sensors, including the semiconducting layers, dielectric layers, electrodes, and their interfaces etc., are illustrated. And their relationships with sensing parameters (sensitivity, selectivity, and response time) as well as the sensing mechanisms are given. Finally, the remaining challenges are discussed. We expect that this review can offer inspiration for future design of OFET‐based sensors.

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Section: Other Sensors In Gas Phasementioning

confidence: 97%

Section: Other Sensors In Gas Phasementioning

confidence: 99%

Recent progress in organic field‐effect transistor‐based chem/bio‐sensors

Luo

Liu

2022

VIEW

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“…In addition, the fully exposed charge transport layer in MMC OFETs is also beneficial to directly probing the intrinsic property of OSCs, which is important to fundamental studies in organic electronics. [ 151–153 ]…”

Section: Strategies For Reducing Rc In Ofetsmentioning

confidence: 99%

Effect of contact resistance in organic field‐effect transistors

Shi

Liu

et al. 2021

Nano Select

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Contact resistance (RC) is universally present in organic field‐effect transistors (OFETs) and the performance of OFETs can be easily affected by RC, which will result in poor performances such as low mobility (μ), large threshold voltage (VT), and non‐ideal transfer/output characteristics. In this article, we provide a comprehensive review on the effects of RC in OFETs. We start with a brief introduction of the origin of RC and its effects on OFETs, followed by the commonly used methods for extraction of RC. Then, methods for reducing RC are thoroughly discussed. Especially, fabricating monolayer molecular crystal (MMC) OFETs is highlighted as one of the key solutions to reduce RC effectively. The final section describes the challenges in MMCs preparation and concludes with an outlook for further reducing RC to enhance the performances of OFETs.

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“…值得注意的是, 降低有机半导体薄膜可能会引入大量缺陷, 限制了高迁移率和高稳定性晶体管传感器的发展. Jiang 课题组 [56,57] 构建了单分子层分子晶体(MMC)器件, 该类晶体管的高电学性质保证了器件的信号放大功能, 在多种传感器中获得了广泛应用. 在MMC中引入微孔结构不但可以维持高迁移率, 还可以促进了其在高选择性和特异性传感研究中的应用 [58] .…”

Section: 探针分子促进的电信号转换原理unclassified

Development of receptor-modified organic transistor-based biosensing

Jiang¹,

Tian²,

Ma³

et al. 2021

Sci. Sin.-Chim

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With the development of materials and solution-process techniques, organic electronics get increasing attention in bioelectronics. Organic transistors have been considered to be promising candidates for biosensors owing to the functions of signal conversion and amplification, as well as the low operation voltage and long-term stability. In order to realize high sensitivity and selectivity, it is necessary to carry out receptor grafting and surface functionalization, which can facilitate the specific interaction and reduce signal noise. Herein, we summarize recent developments of receptor-functionalized organic transistor-based sensors for smart applications. We first review the fundamentals from the viewpoint of receptor categories, grafting methods and sensing mechanism. Second, we describe the strategies used for receptor assembly and device fabrication. Furthermore, remaining challenges and perspectives are discussed to offer a comprehensive overview of the next generation of corresponding biosensors.

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Flexible Monolayer Molecular Crystal‐Field Effect Transistors for Ultrasensitive and Selective Detection of Dimethoate

Cited by 25 publications

References 59 publications

Recent progress in organic field‐effect transistor‐based chem/bio‐sensors

Recent progress in organic field‐effect transistor‐based chem/bio‐sensors

Effect of contact resistance in organic field‐effect transistors

Development of receptor-modified organic transistor-based biosensing

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