All Publications

  • A scalable bonding technique for the development of next-generation brain-machine interfaces Wang, P., Goh, T., Hemed, N., Melosh, N., IEEE IEEE. 2019: 863–66
  • Direct microfabrication of oxide patterns by local electrodeposition of precisely positioned electrolyte: the case of Cu2O SCIENTIFIC REPORTS Wang, P., Roberts, R. C., Ngan, A. W. 2016; 6: 27423


    An efficient technique for writing 2D oxide patterns on conductive substrates is proposed and demonstrated in this paper. The technique concerns a novel concept for selective electrodeposition, in which a minimum quantity of liquid electrolyte, through an extrusion nozzle, is delivered and manipulated into the desired shape on the substrate, meanwhile being electrodeposited into the product by an applied voltage across the nozzle and substrate. Patterns of primarily Cu2O with 80~90% molar fraction are successfully fabricated on stainless steel substrates using this method. A key factor that allows the solid product to be primarily oxide Cu2O instead of metal Cu - the product predicted by the equilibrium Pourbaix diagram given the unusually large absolute deposition voltage used in this method, is the non-equilibrium condition involved in the process due to the short deposition time. Other factors including the motion of the extrusion nozzle relative to the substrate and the surface profile of the substrate that influence the electrodeposition performance are also discussed.

    View details for DOI 10.1038/srep27423

    View details for Web of Science ID 000377011300001

    View details for PubMedID 27255188

    View details for PubMedCentralID PMC4891777