“Dragging mode” electrohydrodynamic jet printing of polymer-wrapped semiconducting single-walled carbon nanotubes for NO gas-sensing field-effect transistors

Tang, Xiaowu; Girma, Henok Getachew; Li, Zhijun; Hong, Jisu; Lim, Bogyu; Jung, Seo‐Hyun; Kim, Yejin; Nam, Sang Yong; Kim, Kyunghun; Kong, Hoyoul; Kim, Se Hyun

doi:10.1039/d1tc04638a

Cited by 11 publications

(4 citation statements)

References 52 publications

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“…There are many materials that are used in TFTs through EHD printing technology. Can et al [111] proposed a novel EHD jet printing approach for synthesizing MoS 2 from a precursor solution of (NH 4 ) 2 MoS 4 , which was demonstrated for the first time. This method resulted in patterns that exhibited a uniform and seamless surface (with an Rq value of 0.2 nm) and possessed a small pattern size (with a width of 150 µm).…”

Section: Thin-film Transistor (Tft)mentioning

confidence: 99%

“…This photodetector achieved high responsivity (R) and detectivity (D*) values of 14.97 A W −1 and 1.41 × 10 12 Jones, respectively. Kim and colleagues [111] achieved effective EHD printing using a small-molecule light-emitting material as an ink suitable for creating small, intricate designs. Examples include stripes, rectangular arrays, and dot arrays generated from bitmap images.…”

Section: Luminous Patternmentioning

confidence: 99%

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Recent Progress in Electrohydrodynamic Jet Printing for Printed Electronics: From 0D to 3D Materials

Wang

Han

et al. 2023

Coatings

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Advanced micro/nano-flexible sensors, displays, electronic skins, and other related devices provide considerable benefits compared to traditional technologies, aiding in the compactness of devices, enhancing energy efficiency, and improving system reliability. The creation of cost-effective, scalable, and high-resolution fabrication techniques for micro/nanostructures built from optoelectronic materials is crucial for downsizing to enhance overall efficiency and boost integration density. The electrohydrodynamic jet (EHD) printing technology is a novel additive manufacturing process that harnesses the power of electricity to create fluid motion, offering unparalleled benefits and a diverse spectrum of potential uses for microelectronic printing in terms of materials, precision, accuracy, and cost-effectiveness. This article summarizes various applications of EHD printing by categorizing them as zero-dimensional (0D), one-dimensional (1D), two-dimensional (2D), and three-dimensional (3D) printing materials. Zero-dimensional (quantum dot) materials are predominantly utilized in LED applications owing to their superb optoelectronic properties, high color fidelity, adjustable color output, and impressive fluorescence quantum yield. One- and two-dimensional materials are primarily employed in FET and sensor technologies due to their distinctive physical structure and exceptional optoelectronic properties. Three-dimensional materials encompass nanometals, nanopolymers, nanoglass, and nanoporous materials, with nanometals and nanopolymers finding widespread application in EHD printing technology. We hope our work will facilitate the development of small-feature-size, large-scale flexible electronic devices via EHD printing.

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Section: Thin-film Transistor (Tft)mentioning

confidence: 99%

Section: Luminous Patternmentioning

confidence: 99%

Recent Progress in Electrohydrodynamic Jet Printing for Printed Electronics: From 0D to 3D Materials

Wang

Han

et al. 2023

Coatings

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“…4 Moreover, organic materials, which can be prepared at low temperatures, possess good mechanical strength and flexibility, making them suitable for plastic substrates with poor heat resistance and the optimal choice for electronic circuits on flexible substrates and for flexible displays. 5,6 Thus, organic transistors hold broad application prospects in flexible electronics, biomedicine, 7 and other fields. 8 Beginning in the early 1990s, researchers attempted to fabricate field-effect transistors using organic semiconductors.…”

Section: Introductionmentioning

confidence: 99%

High-performance organic thin-film transistors: principles and strategies

Hao,

Wu,

Liu

et al. 2024

J. Mater. Chem. C

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“…Highly crystalline polymer films are particularly beneficial for organic transistors because of their π–π interaction; however, a crystalline polymer layer acts as a barrier, making it difficult for gas molecules to penetrate the active layer. − The regiorandom-induced free volume in the polymer active layer facilitates exposure of the target gas to the charge carriers in the channel region and promotes interactions between the charge carriers and analyte gas, which enhances the sensitivity and response rates of the sensor . In this study, we systematically investigated the effects of the regioregularity of a conjugated polymer on the molecular order and electrical/sensing characteristics.…”

Section: Introductionmentioning

confidence: 99%

Low-Regioregularity Polythiophene for a Highly Sensitive and Stretchable Gas Sensor

Jang

Park

Lee

et al. 2023

ACS Appl. Mater. Interfaces

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In this study, we examined how the regioregularity of poly(3-hexylthiophene) (P3HT) affects molecular packing, free volume, charge transport, and gas sensing properties. Our results showed that the presence of regular alkyl side chains on the polymer backbone promoted a high degree of structural order in regioregular P3HT molecules, leading to a compact packing density and reduced free volume. Consequently, it was more challenging for NO 2 molecules to interact with the hole charge carriers in the conductive channel. On the other hand, the regiorandom P3HT films displayed a larger free volume, attributed to the irregular side chains, which facilitated the gas−analyte interaction while impeding efficient charge transport. Thus, these films exhibited greater sensitivity to analyte gas molecules. The molecular order, packing density, and hardness of P3HT films were confirmed through the use of multiple techniques, including UV−vis spectroscopy, atomic force microscopy, and grazing-incidence X-ray diffraction. Additionally, the regiorandom P3HT films showed enhanced mechanical flexibility compared to the regioregular films. In conclusion, our findings emphasize that the regularity of polymer molecules plays a significant role in determining the charge carrier transport and gas adsorption characteristics.

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“Dragging mode” electrohydrodynamic jet printing of polymer-wrapped semiconducting single-walled carbon nanotubes for NO gas-sensing field-effect transistors

Abstract: In this study, we investigated facile “dragging mode” electrohydrodynamic (EHD) jet printing of a polymer-wrapped semiconducting single-walled carbon nanotube (s-SWCNT) ink, for fabrication of NO gas-sensing field-effect transistors (FETs). The...

Cited by 11 publications

References 52 publications

Recent Progress in Electrohydrodynamic Jet Printing for Printed Electronics: From 0D to 3D Materials

Recent Progress in Electrohydrodynamic Jet Printing for Printed Electronics: From 0D to 3D Materials

High-performance organic thin-film transistors: principles and strategies

Low-Regioregularity Polythiophene for a Highly Sensitive and Stretchable Gas Sensor

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