Sensing of Alkylating Agents Using Organic Field‐Effect Transistors

Gannot, Yair; Hertzog-Ronen, Carmit; Tessler, Nir; Eichen, Yoav

doi:10.1002/adfm.200901598

Cited by 27 publications

(17 citation statements)

References 43 publications

(6 reference statements)

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“…Examples of conjugated polymers and their derivatives demonstrated for gas sensing with wireless and low power transducers include polyaniline, 165–167 polythiophenes, 160,162,168 polypyrrole, 164,169 bilypyrroles, 170 and poly(vinyl ferrocene). 163 Conjugated polymers (e.g.…”

Section: Integration Of Sensing Materials With Transducersmentioning

confidence: 99%

Materials and Transducers Toward Selective Wireless Gas Sensing

et al. 2011

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Introduction 7315 1.1. Diversity of Monitoring Needs of Volatiles 7315 1.2. Chemical Interferences As the Key Noise Parameter for Wireless Sensors 7316 1.3. Goals and Scope of This Review 7317 1.4. Topics That Are Out of Scope of This Review 7317 2. Anatomy of Wireless Gas Sensors 7317 2.1. Active and Passive Wireless Sensors 7318 2.2. Transducers for Wireless Passive Sensors 7319 2.3. RFID Sensors 7320 2.4. Key Performance Factors of Wireless Sensors 7320 2.5. Summary of Specific Requirements for Wireless Gas Sensors 7321 3. Need for Transducers with Multiple Response Mechanisms 7321 3.1. Limitations of Sensor Arrays for Tethered and Wireless Gas Sensing 7322 3.2. Data Processing 7322 3.3. Multivariate Sensing 7323 4. Integration of Sensing Materials with Transducers 7323 6.3. System Approach for Development of Wireless Gas Sensors 7345 6.4. Path Forward 7345 Author Information 7346 Biographies 7346 Acknowledgment 7347 References 7347

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Section: Integration Of Sensing Materials With Transducersmentioning

confidence: 99%

Materials and Transducers Toward Selective Wireless Gas Sensing

et al. 2011

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“…This has been driven by scientific interest [1,2] and the potential applications of OFETs in new technologies such as flexible displays [3,4], logic circuits [5][6][7], radio frequency identification (RFID) tags [8,9], electronic paper [10,11] and sensing [12][13][14]. Organic compound-based devices offer interesting advantages over their inorganic counterparts in terms of their cost-effective deposition using low-energy vapour and solution phase methods that are suitable for large-area coverage on both solid and flexible substrates [15][16][17].…”

Section: Introductionmentioning

confidence: 99%

High-mobility solution-processed copper phthalocyanine-based organic field-effect transistors

Chaure

Cammidge

Chambrier

et al. 2011

Science and Technology of Advanced Materials

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Solution-processed films of 1,4,8,11,15,18,22,25-octakis(hexyl) copper phthalocyanine (CuPc 6 ) were utilized as an active semiconducting layer in the fabrication of organic field-effect transistors (OFETs) in the bottom-gate configurations using chemical vapour deposited silicon dioxide (SiO 2 ) as gate dielectrics. The surface treatment of the gate dielectric with a self-assembled monolayer of octadecyltrichlorosilane (OTS) resulted in values of 4 × 10 −2 cm 2 V −1 s −1 and 10 6 for saturation mobility and on/off current ratio, respectively. This improvement was accompanied by a shift in the threshold voltage from 3 V for untreated devices to −2 V for OTS treated devices. The trap density at the interface between the gate dielectric and semiconductor decreased by about one order of magnitude after the surface treatment. The transistors with the OTS treated gate dielectrics were more stable over a 30-day period in air than untreated ones.

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“…Actually, its conjugated backbone is functionalized with pyridine rings that can selectively detect alkylating agents 15, like methyl iodide. [46] In fact, 14 changes drastically its electronic properties upon quaternization of the pyridine pendant groups by the alkylating analytes: the molecular backbone 16 incorporates positive charges and the pyridinium functionalities work as electron-poor units that confer a p-doped behavior to the polymer. As a result, after exposure to vapors of analytes, the OFET fabricated with 14 switches from fieldeffect modulation of the current to a resistor-like behavior, typical of an organic semiconductor in the doped state.…”

Section: Poly(3-alkylthiophene)s: Control Of Order At the Molecular Smentioning

confidence: 99%

Molecular and Supramolecular Architectures of Organic Semiconductors for Field‐Effect Transistor Devices and Sensors: A Synthetic Chemical Perspective

Operamolla

Farinola

2010

Eur J Org Chem

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Organic field‐effect transistors (OFETs) are key devices in organic electronics, and their performances largely depend on molecular structure and solid‐state organization of the π‐conjugated compounds used as semiconductors. This microreview reports several examples of materials for OFET devices and sensors, which have been selected to highlight the basic criteria of molecular design together with the synthetic logic driving the development of organic semiconductors. Versatile synthetic methodologies enable to optimize properties by tailoring molecular structures and functionalization, thus playing a key role in the progress of OFET technology, and more in general of organic electronics, which is emphasized in the discussion.

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Sensing of Alkylating Agents Using Organic Field‐Effect Transistors

Cited by 27 publications

References 43 publications

Materials and Transducers Toward Selective Wireless Gas Sensing

Materials and Transducers Toward Selective Wireless Gas Sensing

High-mobility solution-processed copper phthalocyanine-based organic field-effect transistors

Molecular and Supramolecular Architectures of Organic Semiconductors for Field‐Effect Transistor Devices and Sensors: A Synthetic Chemical Perspective

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