Fabrication of a Polymer Nano Nozzle for Electrohydrodynamic Small-Molecule Solvent Inkjet Printing

Xu, Liang; Qi, Liping; Li, Kehong; Zou, Helin

doi:10.1021/acsanm.2c05484

Cited by 5 publications

(3 citation statements)

References 45 publications

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“…Instead of pushing the printing material out of the nozzle like traditional printing methods, EHD jet printing uses high electrical fields to pull the material out. EHD printing can create precise micro-and nano-manufactured products [52][53][54][55]. By applying an electric potential between the nozzle and substrate, charged particles gather at the liquid-air interface, causing the meniscus to transform into a conical shape known as the Taylor cone.…”

Section: Introductionmentioning

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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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: Introductionmentioning

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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“…Consequently, achieving nanometer resolution necessitates a nozzle scale of a few hundred nanometers, which can be quite complicated to prepare. 29,30 Here, we demonstrate a jet morphology modulation (JMM) method for fabricating individually controllable PZT nanowire with precision orientation and position through E-jet printing with conventional micronozzle. In this study, the polymeric material poly(ethylene oxide) (PEO) was chosen as the jet modulating agent because of its property as a viscosity modifier, and the mechanism of jet morphology transition was systematically investigated.…”

Section: Introductionmentioning

confidence: 99%

“…Regrettably, under current conditions, limited jet length results in an inadequate necking ratio and nozzle size heavily dictates print resolution. Consequently, achieving nanometer resolution necessitates a nozzle scale of a few hundred nanometers, which can be quite complicated to prepare. , …”

Section: Introductionmentioning

confidence: 99%

Electrohydrodynamic Jet Morphology Modulation for Highly Spatially Controllable Piezoelectric Nanowire Deposition

Xu,

Qi,

et al. 2023

ACS Appl. Polym. Mater.

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Piezoelectric nanowires possess remarkable mechanical flexibility and strength as well as the ability to respond to slight vibrations or disturbances across a wide range of frequencies. However, conventional fabrication methods based on lithography or chemicals are complex, time-consuming, and costly. This paper presents an electrohydrodynamic jet (E-jet) modulating method for fabricating highly aligned, ultralong piezoelectric nanowires in a highly efficient and controllable way, utilizing poly(ethylene oxide) (PEO) as the modulating agent. The study systematically investigates the mechanism of the jet morphology transition and proposes an approach to initiating the ejection at a lower working voltage, enabling high-resolution printing without reducing the nozzle size. The combination of morphology modulation of jet with lower working voltage enables successful fabrication of superfine lead zirconate titanate (PZT) nanowires with a size of about 35 nm, individually controllable in orientation and position, and various complex patterns. Additionally, applications of the proposed method were demonstrated in the field of 3D surface nanoprinting and the preparation of piezoelectric sensors and nanoelectrodes. These results represent a significant breakthrough in E-jet printing technology, which provides high resolution and spatial controllability utilizing conventional micronozzle technology for nanodevice fabrication.

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Organic transistor‐based integrated circuits for future smart life

Xie,

Ding,

Jin

et al. 2024

SmartMat

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With the rapid development of advanced technologies in the Internet of Things era, higher requirements are needed for next‐generation electronic devices. Fortunately, organic thin film transistors (OTFTs) provide an effective solution for electronic skin and flexible wearable devices due to their intrinsic features of mechanical flexibility, lightweight, simple fabrication process, and good biocompatibility. So far considerable efforts have been devoted to this research field. This article reviews recent advances in various promising and state‐of‐the‐art OTFTs as well as related integrated circuits with the main focuses on: (I) material categories of high‐mobility organic semiconductors for both individual transistors and integrated circuits; (II) effective device architectures and processing techniques for large‐area fabrication; (III) important performance metrics of organic integrated circuits and realization of digital and analog devices for future smart life; (IV) applicable analytical models and design flow to accelerate the circuit design. In addition, the emerging challenges of OTFT‐based integrated circuits, such as transistor uniformity and stability are also discussed, and the possible methods to solve these problems at both transistor and circuit levels are summarized.

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Fabrication of a Polymer Nano Nozzle for Electrohydrodynamic Small-Molecule Solvent Inkjet Printing

Cited by 5 publications

References 45 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

Electrohydrodynamic Jet Morphology Modulation for Highly Spatially Controllable Piezoelectric Nanowire Deposition

Organic transistor‐based integrated circuits for future smart life

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