PDF(Pubmed)
Abstract：
Solution-processed graphene is beneficial for large-scale, low-cost production. However, its small lateral size, variable layer thickness, and uncontrollable oxidation level still restrict its widespread electronic application. In this study, a newly developed electrochemical exfoliation process was introduced, and a graphene-patched film electrode was fabricated by interfacial self-assembly. We were able to minimize the deterioration of graphene colloids during exfoliation by voltage and electrolyte modulation, but the patched structure of the graphene electrode still showed low conductivity with numerous inter-sheet junctions. Therefore, we determined the optimal conditions for the growth of fully networked silver structures on the multi-stacked graphene film by direct current electro-deposition, and these silver-graphene composite films showed significantly lowered graphene-colloid-patched film surface resistance.
摘要：
溶液处理的石墨烯有利于大规模，低成本生产。然而,它的横向尺寸小，可变层厚度，和不可控的氧化水平仍然制约着其广泛的电子应用。在这项研究中,介绍了一种新开发的电化学剥离工艺，并通过界面自组装制备了石墨烯贴片膜电极。我们能够通过电压和电解质调制来最大程度地减少剥离过程中石墨烯胶体的劣化，但是石墨烯电极的补片结构仍然显示出低电导率，具有许多片间连接。因此,我们确定了通过直流电沉积在多层堆叠的石墨烯膜上生长完全网络银结构的最佳条件，这些银-石墨烯复合膜显示出显着降低的石墨烯胶体贴膜表面电阻。
