• 文献标题:   Self-Assembly Synthesis of Silver Nanowires/Graphene Nanocomposite and Its Effects on the Performance of Electrically Conductive Adhesive
  • 文献类型:   Article
  • 作  者:   XU T, CHEN JY, YUAN WH, LIU YH, SUN YJ, WU HJ, ZHOU XQ
  • 作者关键词:   electrically conductive adhesive, silver nanowire, graphene, volume resistivity
  • 出版物名称:   MATERIALS
  • ISSN:   1996-1944
  • 通讯作者地址:   South China Univ Technol
  • 被引频次:   3
  • DOI:   10.3390/ma11102028
  • 出版年:   2018

▎ 摘  要

Among recent advances in electronic packaging technologies, electrically conductive adhesives (ECAs) attract most researchers' attention, as they are environment-friendly and simple to apply. ECAs also have a lower operating temperature and volume resistivity compared with conventional electronic conductive adhesives. In ECAs, the conducting fillers play a significant role in improving conductivity and strength. In this work, as filler additives, the silver nanowires/graphene nanocomposites (AgNWs-GNs) were successfully fabricated via a facile self-assembly method. The characteristics of the as-prepared nanocomposites were evaluated by FTIR (Fourier Transform infrared spectroscopy), XRD (X-ray Diffraction), XPS (X-ray photoelectron spectroscopy), TEM (Transmission electron microscope) and Raman tests, demonstrating a successful synthesis process. Different amounts of AgNWs-GNs were used as additives in micron flake silver filler, and the effects of AgNWs-GNs on the properties of ECAs were studied. The results suggested that the as-synthesized composites can significantly improve the electrical conductivity and shear strength of ECAs. With 0.8% AgNWs/GNs (AgNWs to GO (Graphite oxide) mass ratio is 4:1), the ECAs have the lowest volume resistivity of 9.31 x 10(-5) cm (95.4% lower than the blank sample without fillers), while with 0.6% AgNWs/GNs (AgNWs to GO mass ratio is 6:1), the ECAs reach the highest shear strength of 14.3 MPa (68.2% higher than the blank sample).