Facile synthesis of high silver content MOD ink by using silver oxalate precursor for inkjet printing applications

Dong, Yue; Li, Xiaodong; Liu, Shaohong; Zhu, Qi; Li, Ji‐Guang; Sun, Xudong

doi:10.1016/j.tsf.2015.06.001

Cited by 73 publications

(56 citation statements)

References 27 publications

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“…However, the synthesis and purification of monodispersed nanoparticles would increase the cost of Ag‐based conducting inks by 3–4 times. The poor mechanical properties due to weak grain boundaries after thermal sintering (230 °C) are a common disadvantage of the silver nanomaterial‐based conducting inks, although silver metal–organic‐decomposition (MOD) ink was designed for lower curing temperatures (e.g., 150 °C) . In addition, the stability of Ag‐based conducting material due to oxidation over time is often a problem causing changes in the material electrical conductivity, although silver oxidation shield can reduce scattering effect …”

Section: Introductionmentioning

confidence: 99%

Laser Direct Writing of Heteroatom (N and S)‐Doped Graphene from a Polybenzimidazole Ink Donor on Polyethylene Terephthalate Polymer and Glass Substrates

Huang

Zeng

Liu

et al. 2018

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In this paper, for the first time, a laser direct writing technique is reported to form S‐ and N‐doped graphene patterns on thin (0.3 mm thickness) polyethylene terephthalate (PET) and glass substrates from a specially formulated organic polybenzimidazole (PBI) ink, without thermally affecting the substrates and without the need for a metallic precursor. Unlike standard graphene ink printing, postcuring at high temperatures is not needed here, thus avoiding potential substrate distortion and damages. A UV laser beam of 355 nm wavelength is used to generate photochemical reactions to break the CS bond (2.8 eV) from dimethyl sulfoxide (DMSO, a component of the PBI ink) and the CN bond (3.14 eV) of PBI and form N‐ and S‐doped graphene on the substrates. The sheet resistance of the laser‐induced graphene is as low as 12 Ω sq−1 on PET, matching that of indium–tin oxide (ITO). The laser‐written doped graphene shows hydrophilic characteristics, unlike pristine graphene. The S‐ and N‐doped graphene allows the tailoring of bandgaps and thus controlling electrical and chemical properties. The optical transparency of the written graphene is below 10% which could be improved in the future. Potential applications include printing of flexible circuits and sensors, and smart wearables.

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Section: Introductionmentioning

confidence: 99%

Laser Direct Writing of Heteroatom (N and S)‐Doped Graphene from a Polybenzimidazole Ink Donor on Polyethylene Terephthalate Polymer and Glass Substrates

Huang

Zeng

Liu

et al. 2018

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“…Comparatively, for silver salt ink, Figure 3b clearly shows that the electrode consisting of interconnected Ag particles and voids, which is demonstrated to be a typical phenomenon using silver salt ink. It is well known that the solvent evaporates quickly and the silver salt is reduced to silver nanoparticles during curing process, and eventually forms a conductive silver film with pores [25]. The XRD patterns in Figure 3c demonstrate that the two types of Ag electrodes have characteristic peaks of metallic pure silver with a good crystallization after thermal treatment.…”

Section: Resultsmentioning

confidence: 97%

Amorphous InGaZnO Thin Film Transistor Fabricated with Printed Silver Salt Ink Source/Drain Electrodes

et al. 2017

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Abstract:Recently, amorphous indium-gallium-zinc-oxide thin film transistors (a-IGZO TFTs) with inkjet printing silver source/drain electrodes have attracted great attention, especially for large area and flexible electronics applications. The silver ink could be divided into two types: one is based on silver nanoparticles, and the other is silver salt ink. Organic materials are essential in the formulation of nanoparticle ink as a strong disperse stabilizer to prevent agglomeration of silver particles, but will introduce contact problems between the silver electrodes and the a-IGZO active layer after annealing, which is difficult to eliminate and leads to poor device properties. Our experiment is aimed to reduce this effect by using a silver salt ink without stabilizer component. With optimized inkjet printing conditions, the high performance of a-IGZO TFT was obtained with a mobility of 4.28 cm 2 /V·s and an on/off current ratio over 10 6 . The results have demonstrated a significant improvement for a-IGZO TFTs with directly printed silver electrodes. This work presents a promising platform for future printed electronic applications.

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“…Dong Yue [22] used silver oxalate as a precursor, ethylamine as a ligand, ethanol and ethylene glycol as solvents to synthesize a particle-free conductive ink, and printed a silver conductive pattern on a PI substrate. The ink contains 27.6wt % silver, and the deposited thin film is heat treated at different temperatures and time ranges, and then analyzed according to its micro-morphology and resistivity.…”

Section: Silver Oxalate As a Precursormentioning

confidence: 99%

Research Status and Prospects of Particle-Free Silver Conductive Ink

Bei

Cheng

2018

IOP Conf. Ser.: Mater. Sci. Eng.

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Abstract. Conductive inks are mainly used in the printed electronics industry. Particlefree conductive inks are prepared from organometallic compounds or complexes as precursors. They have the characteristics of preventing agglomeration and settling, not easily clogging the nozzles, and having a low heat treatment temperature, suitable for inkjet printing. Starting from precursors, the development statuses of conductive inks using silver acetate, silver citrate, silver neodecanoate, silver oxalate, silver tartrate, silver nitrate, and silver oxide as precursors were respectively introduced, summarized the main problems that existed, and put forward the outlook.

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Facile synthesis of high silver content MOD ink by using silver oxalate precursor for inkjet printing applications

Cited by 73 publications

References 27 publications

Laser Direct Writing of Heteroatom (N and S)‐Doped Graphene from a Polybenzimidazole Ink Donor on Polyethylene Terephthalate Polymer and Glass Substrates

Laser Direct Writing of Heteroatom (N and S)‐Doped Graphene from a Polybenzimidazole Ink Donor on Polyethylene Terephthalate Polymer and Glass Substrates

Amorphous InGaZnO Thin Film Transistor Fabricated with Printed Silver Salt Ink Source/Drain Electrodes

Research Status and Prospects of Particle-Free Silver Conductive Ink

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