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Journal ArticleDOI

Explosive vapor sensor using poly (3-hexylthiophene) and CuII tetraphenylporphyrin composite based organic field effect transistors

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TLDR
In this paper, organic field effect transistors based on poly(3-hexylthiophene) and CuII tetraphenylporphyrin composite were investigated as sensors for detection of vapors of nitro-based explosive compounds.
Abstract
Organic field effect transistors based on poly(3-hexylthiophene) and CuII tetraphenylporphyrin composite were investigated as sensors for detection of vapors of nitrobased explosive compounds, viz., 1,3,5-trinitro-1,3,5-triazacyclohexane (RDX), 2,4,6-trinitrotoluene (TNT), and dinitrobenzene, which are also strong oxidizing agents. Significant changes, suitable for sensor response, were observed in transistor “on” current (Ion) and conductance (S) after exposure. A similar device response was, however, not observed for oxidizing agents such as benzoquinone and benzophenone. The Fourier transform infrared spectrometry experiments supported the results, where exposure to RDX and TNT vapors resulted in a significant shift in IR peaks.

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Citations
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Functional organic field-effect transistors.

TL;DR: The history, current status of research, main challenges and prospects for functional OFETs are all discussed, in order to provide a comprehensive overview of this field.
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Chemical and engineering approaches to enable organic field-effect transistors for electronic skin applications.

TL;DR: Progress to date suggests that OFETs may be integrated within a single substrate to function as an electronic mimic of human skin, which could enable a large range of sensing-related applications from novel prosthetics to robotic surgery.
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Chemical and Physical Sensing by Organic Field‐Effect Transistors and Related Devices

TL;DR: This Review summarizes recent advances in the use of organic electronic materials for the detection of environmental chemicals, pressure, and light.
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Carbon based materials for electronic bio-sensing

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Hybrid Integrated Label-Free Chemical and Biological Sensors

TL;DR: This review will briefly discuss some of the methods for creating these multi-material sensor platforms and the advances enabled by this design approach.
References
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Journal ArticleDOI

Solution-Processed n-Type Organic Field-Effect Transistors With High on / off Current Ratios Based on Fullerene Derivatives

TL;DR: In this paper, solution-processed n-type organic field effect transistors (OFETs) based on the fullerene derivative {6}-1-(3-(2- thienylethoxycarbonyl)-propyl)propyl)-{5}-l-phenyl-[5,6]-C61 (TEPP) and phenyl-C61-butyric acid methyl ester (PCBM) in a multiring source/drain structure are reported.
Journal ArticleDOI

Toxic gas detection using porphyrin dispersed polymer composites

TL;DR: In this paper, the optochemical sensing performances of the porphyrin dyes dispersed in ethylcellulose (EC) matrix to toxic gases such as HCl, NO 2 and SO 2 were examined using a photo-reflection spectrum technique.
Journal ArticleDOI

The Effects of Surface Treatment on Device Performance in Pentacene-based thin Film Transistor

TL;DR: In this paper, the influence of surface treatment using hexamethyldisilazane (HMDS) on device performance of pentacene-based thin film transistor was investigated.
Journal ArticleDOI

Ultrafast optical switching by photoinduced electrochromism in cast films of polymeric 4,4′-bipyridinium salts with di-iodides

TL;DR: In this paper, the femtosecond dynamics of color changes due to photoinduced electron transfer and reverse reactions in polymeric 4,4′-bipyridinium di-iodides salts were studied with a fs laser pump-probe technique.
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