Nano oxide intermediate layer assisted room temperature sintering of ink-jet printed silver nanoparticles pattern.

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ID: 39280
2019
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Abstract
Sintering of metallic nanoparticles (NPs) at low temperature is highly wanted in the manufacturing of flexible electronics. And for ink jet printing, the metallic NPs after printing usually need thermal or chemical post-treatment to remove stabilizing agents and achieve conductivity. Here, we reported a facile method to realize one-step printed sintering of silver nanoparticle (AgNP) ink at room temperature by using intermediate coated layers composed of oxide NPs and polyvinyl alcohol (PVA) mixture. We found that the detachment of the stabilizer (citrate) from the AgNPs was caused by hydroxyl groups on the surface of the oxide NPs, which enabled the coalescence and sintering of the AgNPs. With the aid of SiO2 NPs based intermediate layer, the patterns showed resistivity as low as 3.45 μΩ·cm after sintering. Moreover, the mixed PVA could ensure the forming quality of patterns owing to its adsorption of ink and the high adhesiveness of PVA with substrates. So, we envision that this approach could serve as an adaptive method for sintering of AgNPs based conductive patterns on various substrates at room temperature and promote the manufacture of printed electronics.
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liu2019nanonanotechnology Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Liu, Zhongyang;Ji, Hongjun;Yuan, Qunhui;Ma, Xing;Feng, Huanghuang;Zhao, Weiwei;Wei, Jun;Xu, Chengyan;Li, Mingyu;
Journal Nanotechnology
Year 2019
DOI
10.1088/1361-6528/ab40db
URL
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