Highly flexible room temperature NO2 sensor based on MWCNTs-WO3 nanoparticles hybrid on a PET substrate

Yaqoob, Usman; Phan, Duy-Thach; Uddin, A.S.M. Iftekhar; Chung, Gwiy‐Sang

doi:10.1016/j.snb.2015.06.137

Cited by 102 publications

(48 citation statements)

References 32 publications

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“…Reflecting the literature, Mahjouri‐Samani et al reported response curves composed of a fast time component (25 ms plasmonically enhanced; 100 ms CNT‐only) and a slow time component (≈400 ms) . Here, our achieved response times of t 0 ≈ (9 ± 4) s (according to a cursory evaluation of Figure B–D) fall short of the lithographically achieved plasmonic SWNCT sensors from the literature but are in the same order of magnitude with the response times reported for sensors made likewise from CNT‐based nanoconjugates with metal nanoparticles discussed above (see Supporting Information, Section S0.1, Table SI).…”

Section: Resultssupporting

confidence: 77%

“…Enhancement of Raman signals of Au nanoparticles is seen by the SPPs of a metallic CNT as the localized SPPs of the Au nanoparticle couple to the SPPs of CNTs . A literature review on sensor concepts for CNT nanoconjugates from literature including their nanoelectronic or optoplasmonic working principles is presented in the Supporting Information, Section S0.1. Key finding for our work was the fact that, especially for optoplasmonic gas sensing applications, integration times of minutes are reported, with 100 s used as a standard.…”

Section: Introductionmentioning

confidence: 99%

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Photosensitive Field‐Effect Transistors Made from Semiconducting Carbon Nanotubes and Non‐Covalently Attached Gold Nanoparticles

Blaudeck

Preuß

Scharf

et al. 2019

Physica Status Solidi (a)

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The authors propose an on-chip microfluidic flow chemistry for non-covalent functionalization of single-walled carbon nanotubes (SWCNTs) as channel material in nanoelectronic carbon-nanotube field-effect transistors (CNT-FETs) specifically aiming for personalized optoplasmonic sensor solutions. Applying pyrene alkanethiol derivatives, dissolved in chloroform, and a dispersion of gold nanoparticles in triglyme, the authors conduct the proof-of-principle to fabricate arrays of photosensitive CNT-FETs using flow chemistry on wafercompatible hardware. The spectral photoresponse of the obtained sensor devices appears clear and reproducible and can be related to the surface plasmon polaritons of the gold nanoparticles. The sensor devices yield photometric responsivities of R A % 8 Â 10 À3 AW À1 and response times of t 0 % 9 s. The results extend a previously reported approach for covalent functionalization (Blaudeck et al., Microelectron. Eng. 2015, 137, 135) and show the potential of flow chemistry combined with wafer-level microfabrication for selectively functionalized nanostructured sensor arrays.

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Section: Resultssupporting

confidence: 77%

Section: Introductionmentioning

confidence: 99%

Photosensitive Field‐Effect Transistors Made from Semiconducting Carbon Nanotubes and Non‐Covalently Attached Gold Nanoparticles

Blaudeck

Preuß

Scharf

et al. 2019

Physica Status Solidi (a)

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“…The substrate functions as the flexible support structure of the wearable resistive strain sensors; the properties of the substrate materials directly determine the sensor's elastic performance. Many commercialized polymers can be used to construct flexible substrates for wearable resistive strain sensors; these include polyethylene terephthalate (PET) [48], polyimide (PI) [49], polyethylene (PE) [50], polyurethane (PU) [51], Ecoflex [52], and PDMS [53]. Among them, PDMS is the most widely used material for flexible substrate fabrication because of its excellent comprehensive performance.…”

Section: Materials and Fabrication Methodsmentioning

confidence: 99%

Polydimethylsiloxane (PDMS)-Based Flexible Resistive Strain Sensors for Wearable Applications

et al. 2018

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There is growing attention and rapid development on flexible electronic devices with electronic materials and sensing technology innovations. In particular, strain sensors with high elasticity and stretchability are needed for several potential applications including human entertainment technology, human-machine interface, personal healthcare, and sports performance monitoring, etc. This article presents recent advancements in the development of polydimethylsiloxane (PDMS)-based flexible resistive strain sensors for wearable applications. First of all, the article shows that PDMS-based stretchable resistive strain sensors are successfully fabricated by different methods, such as the filtration method, printing technology, micromolding method, coating techniques, and liquid phase mixing. Next, strain sensing performances including stretchability, gauge factor, linearity, and durability are comprehensively demonstrated and compared. Finally, potential applications of PDMS-based flexible resistive strain sensors are also discussed. This review indicates that the era of wearable intelligent electronic systems has arrived.

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“…An external or internal heater is usually needed to control the working temperature of the sensor. Polymers can also be used as substrates for chemiresistive sensors with some peculiarities such as flexibility, transparency, and wearability . The FET type can also function using both rigid and flexible substrates.…”

Section: Configuration and Mechanism Of Gas Sensorsmentioning

confidence: 99%

Two‐Dimensional Nanostructured Materials for Gas Sensing

Liu

Pinna

et al. 2017

Adv Funct Materials

697

356

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Two-dimensional (2D) nanostructures are highly attractive for fabricating nanodevices due to their high surface-to-volume ratio and good compatibility with device design. In recent years 2D nanostructures of various materials including metal oxides, graphene, metal dichalcogenides, phosphorene, BN and MXenes, have demonstrated significant potential for gas sensors. This review aims to provide the most recent advancements in utilization of various 2D nanomaterials for gas sensing. The common methods for the preparation of 2D nanostructures are briefly summarized first. The focus is then placed on the sensing performances provided by devices integrating 2D nanostructures. Strategies for optimizing the sensing features are also discussed. By combining both the experimental results and the theoretical studies available, structure-properties correlations are discussed. The conclusion gives some perspectives on the open challenges and future prospects for engineering advanced 2D nanostructures for high-performance gas sensors devices.

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Highly flexible room temperature NO2 sensor based on MWCNTs-WO3 nanoparticles hybrid on a PET substrate

Cited by 102 publications

References 32 publications

Photosensitive Field‐Effect Transistors Made from Semiconducting Carbon Nanotubes and Non‐Covalently Attached Gold Nanoparticles

Photosensitive Field‐Effect Transistors Made from Semiconducting Carbon Nanotubes and Non‐Covalently Attached Gold Nanoparticles

Polydimethylsiloxane (PDMS)-Based Flexible Resistive Strain Sensors for Wearable Applications

Two‐Dimensional Nanostructured Materials for Gas Sensing

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