江浩,汤成莉,王岩,毛凌航.纳米银颗粒-银离子复合型导电墨水导电性研究[J].包装工程,2022,(5):56-61.
JIANG Hao,TANG Cheng-li,WANG Yan,MAO Ling-hang.Electrical Conductivity of Silver Nanoparticles/Silver Ion Composite Conductive Ink[J].Packaging Engineering,2022,(5):56-61. |
| 纳米银颗粒-银离子复合型导电墨水导电性研究 |
| Electrical Conductivity of Silver Nanoparticles/Silver Ion Composite Conductive Ink |
| 投稿时间：2021-05-05 |
| DOI：10.19554/j.cnki.1001-3563.2022.05.008 |
| 中文关键词: 纳米银颗粒 导电墨水 有机银 柔性电子 |
| 英文关键词: silver nanoparticles conductive ink organic silver flexible electronics |
| 基金项目:国家自然科学基金(61704067);嘉兴市公益性研究计划(2021AY10066);浙江省大学生创新训练计划(2020R417005) |
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| 中文摘要: |
| 目的 为了减少纳米银颗粒墨水所制备图案的孔隙率，提高图案的导电性。方法 将多尺寸纳米银颗粒与银离子溶液混合制备得到纳米银颗粒-银离子复合型墨水，通过扫描电子显微镜(SEM)观察所制备图案的表面形貌，采用X-射线衍射仪(XRD)确定图案表面晶型，并对图案进行电阻率测试。 结果 实验结果表明，纳米银颗粒-银离子的配比对该复合型导电墨水的导电性有重要影响。AgNPs与Ag+的体积比为2∶1的混合型墨水在干燥之后具有最佳导电性，电阻率为1.33×10−3 Ω.cm，该墨水中银的质量分数约为4.37%。经过热压之后，AgNPs与Ag+的体积比为5∶1的墨水所制备的图案导电性最好，电阻率为1.32×10−4 Ω.cm，该墨水中银的质量分数约为3.19%。结论 所制备的纳米银颗粒-银离子复合型墨水干燥后即可导电，经过热压处理之后导电性可进一步提高。该复合型墨水中银含量低，可大大降低其用于柔性器件的成本。 |
| 英文摘要: |
| The work aims to reduce the porosity of the pattern prepared by silver nanoparticle ink and improve the conductivity of the pattern. In this paper, silver nanoparticles/silver ion composite ink was prepared by mixing multi-sized silver nanoparticles with silver ions solution. The surface morphology of the pattern was observed by scanning electron microscopy (SEM). The crystal structure of the surface was examined by x-ray diffractometer (XRD), and the electrical resistivity of the pattern was also measured. Experimental results showed that the ratio of the silver nanoparticles to the silver ion greatly affected the pattern conductivity. The composite ink with volume ratio of AgNPs∶Ag+=2∶1 obtained the best conductivity after drying, with the electrical resistivity of 1.33×10−3 Ω.cm. The silver content of the ink was only about 4.37 wt%. After hot-press sintering, the composite ink with volume ratio of AgNPs∶Ag+=5∶1 had the best electrical resistivity of 1.32×10−4 Ω.cm. The silver content in the ink was only about 3.19 wt%. The pattern prepared by the composite ink was conductive after drying, and shows higher conductivity after hot-press sintering. The silver nanoparticle-silver ion composite ink prepared in this work has low silver content, which could greatly reduce the cost of applying it in flexible devices. |
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