Ma Hongru, Zeng Jinfeng, Harrington Steven, Ma Lei, Ma Mingze, Guo Xuhong, Ma Yanqing
School of Chemistry and Chemical Engineering, Shihezi University, Shihezi 832003, China.
Tianjin International Center of Nanoparticle and Nanosystems, Tianjin University, Tianjin 300072, China.
Nanomaterials (Basel). 2016 Jun 21;6(6):119. doi: 10.3390/nano6060119.
Silver nanowires-silver nanoparticles-graphene nanosheets (AgNWs-AgNPs-GN) hybrid nanomaterials were fabricated through a hydrothermal method by using glucose as a green reducing agent. The charge carriers of AgNWs-AgNPs-GN passed through defect regions in the GNs rapidly with the aid of the AgNW and AgNP building blocks, leading to high electrical conductivity of electrically conductive adhesives (ECA) filled with AgNWs-AgNPs-GN. The morphologies of synthesized AgNWs-AgNPs-GN hybrid nanomaterials were characterized by field emission scanning electron microscope (FESEM), and high resolution transmission electron microscopy (HRTEM). X-ray diffraction (XRD) and laser confocal micro-Raman spectroscopy were used to investigate the structure of AgNWs-AgNPs-GN. The resistance of cured ECAs was investigated by the four-probe method. The results indicated AgNWs-AgNPs-GN hybrid nanomaterials exhibited excellent electrical properties for decreasing the resistivity of electrically conductive adhesives (ECA). The resistivity of ECA was 3.01 × 10 Ω·cm when the content of the AgNWs-AgNPs-GN hybrid nanomaterial was 0.8 wt %.
通过水热法，以葡萄糖作为绿色还原剂制备了银纳米线-银纳米颗粒-石墨烯纳米片（AgNWs-AgNPs-GN）杂化纳米材料。借助AgNW和AgNP构建块，AgNWs-AgNPs-GN的电荷载流子迅速穿过GNs中的缺陷区域，从而使填充有AgNWs-AgNPs-GN的导电胶（ECA）具有高导电性。通过场发射扫描电子显微镜（FESEM）和高分辨率透射电子显微镜（HRTEM）对合成的AgNWs-AgNPs-GN杂化纳米材料的形貌进行了表征。利用X射线衍射（XRD）和激光共聚焦显微拉曼光谱研究了AgNWs-AgNPs-GN的结构。采用四探针法研究了固化ECA的电阻。结果表明，AgNWs-AgNPs-GN杂化纳米材料在降低导电胶（ECA）电阻率方面表现出优异的电学性能。当AgNWs-AgNPs-GN杂化纳米材料的含量为0.8 wt%时，ECA的电阻率为3.01×10Ω·cm。
