Conductive Ink Prepared by Microwave Method: Effect of Silver Content on the Pattern Conductivity
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A facile one-step microwave approach was employed to synthesize silver nanoparticle (AgNP) conductive ink. The conductive ink contained multi-sized silver nanoparticles. Different particle size distribution can be obtained by adding different amounts of the silver source. The relationship between the conductivity of the direct written pattern using the as-prepared silver conductive ink, the particle packing morphology and the particle size distribution standard deviation was investigated. Among all the samples, conductive ink with a silver weight percentage of 10% can have an optimal electrical resistance of 98 μΩ cm after post-hot/pressure treatment at 100°C and 20 MPa for 10 min. The as-prepared conductive ink is of potential application in printed electronics because the sintering condition of low temperatures is feasible for most kinds of flexible substrate materials.
KeywordsConductive ink silver nanoparticles microwave electrical resistance printed electronics
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This work reported in this paper was financially supported by National Natural Science Foundation of China (61704067), (51775242), Science and Technology Innovation Program for College Students in Zhejiang Province (New Talent Program) (2018R417040), General Scientific Research Project of Zhejiang Education Department (Y201738195), and Key Project of Student Research Training of Jiaxing University (85171725).
Conflict of interest
The authors declare that they have no conflict of interest.
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