Synthesis and characterization of copper ink and direct printing of copper patterns by inkjet printing for electronic devices

Jun, Ho Young; Lee, Eon Ju; Ryu, Si Ok

doi:10.1016/j.cap.2020.04.003

Cited by 21 publications

(12 citation statements)

References 36 publications

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“…PVP, because of its unique lactam structure, has both hydrophilic and lipophilic properties and can thus form a film with strong binding force on plastic [ 52 , 53 ]. Furthermore, PVP is also often used as a surface dispersant that prevents ink from precipitating [ 35 , 54 ]. Because plasma contains both solids and liquids, commercial nanojet humectants were added to enable the heterogeneous liquid to emulsify and evenly disperse; the copper ink appeared even after the plasma was left alone for several days.…”

Section: Resultsmentioning

confidence: 99%

Preparing Copper Nanoparticles and Flexible Copper Conductive Sheets

et al. 2022

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Nanotechnology is used in a wide range of fields, including medicine, cosmetics, and new material development, and is one of the most popular technologies in the field of flexible electronic products. For the present work, the chemical reduction method with environmentally friendly reducing agents was used to synthesize copper nanoparticles (CuNPs) with good dispersibility. The CuNPs were characterized by transmission electron microscopy (TEM), X-ray diffraction (XRD), and ultraviolet–visible spectrophotometry (UV–vis). After the CuNPs were formed, the solvent, polymers, and additives were added to form copper ink. Finally, the prepared copper inks were applied to flexible polyethylene terephthalate (PET) substrate under low sintering temperature and the effects of sintering time and different concentrations of sintering agent on resistivity were investigated. The results show that the copper nanoparticles synthesized by secondary reduction were smaller, more uniform, and better dispersed than those formed by primary reduction. Ethylene glycol has reducing effects under high temperatures; therefore, the CuNPs formed using the mixed solvent were small and well dispersed. The copper ink was applied on the PET substrate, treated with a formic acid aqueous solution, and sintered at 130 °C for 60 min, and its resistivity was about 1.67 × 10−3 Ω cm. The proposed synthesizing method is expected to have potential applications in the flexible electronic products field.

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Section: Resultsmentioning

confidence: 99%

Preparing Copper Nanoparticles and Flexible Copper Conductive Sheets

et al. 2022

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“…Jun et al pretreated the Si/SiO 2 substrate with hexamethyldisilazane (HMDS), improved the contact angle of inkjet printing copper ink, and obtained a printing pattern with regular edges and no coffee-ring phenomenon. 116 However, due to the entanglement of nanowires, there are few applications in inkjet printing. 213–215…”

Section: Printing and Sintering Methodsmentioning

confidence: 99%

Copper inks for printed electronics: a review

Zeng

et al. 2022

Nanoscale

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“…Inkjet printing has the advantages of low cost, high throughput, and high resolution [ 128 , 129 ]. Furthermore, drop-on-demand inkjet printing can save cost by consuming less volume of ink, which is beneficial for depositing expensive biomolecular in biological applications [ 130 , 131 ]. A schematic representation of inkjet printing process is shown in Fig.…”

Section: Fabrications Of the Flexible Ofets-based Sensorsmentioning

confidence: 99%

Flexible organic field-effect transistors-based biosensors: progress and perspectives

Zhang

et al. 2023

Anal Bioanal Chem

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Organic field-effect transistors (OFETs) have been proposed beyond three decades while becoming a research hotspot again in recent years because of the fast development of flexible electronics. Many novel flexible OFETs-based devices have been reported in these years. Among these devices, flexible OFETs-based sensors made great strides because of the extraordinary sensing capability of FET. Most of these flexible OFETs-based sensors were designed for biological applications due to the advantages of flexibility, reduced complexity, and lightweight. This paper reviews the materials, fabrications, and applications of flexible OFETs-based biosensors. Besides, the challenges and opportunities of the flexible OFETs-based biosensors are also discussed. Graphical abstract

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Synthesis and characterization of copper ink and direct printing of copper patterns by inkjet printing for electronic devices

Cited by 21 publications

References 36 publications

Preparing Copper Nanoparticles and Flexible Copper Conductive Sheets

Preparing Copper Nanoparticles and Flexible Copper Conductive Sheets

Copper inks for printed electronics: a review

Flexible organic field-effect transistors-based biosensors: progress and perspectives

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