6533b82dfe1ef96bd1291636

RESEARCH PRODUCT

Functionalization of Silver Nanowires Surface using Ag–C Bonds in a Sequential Reductive Method

Mirza MačkovićSilke ChristiansenSebastian ReschSiegfried R. WaldvogelErdmann SpieckerMuhammad Y. BashoutiJ. Ristein

subject

Materials scienceInorganic chemistryTwo stepNanoparticleSilver nanowiresHigh surfacechemistry.chemical_compoundChemical engineeringX-ray photoelectron spectroscopychemistryElectrodeSurface modificationGeneral Materials ScienceSilver oxide

description

Silver nanowires (Ag-NW) assembled in interdigitated webs have shown an applicative potential as transparent and conducting electrodes. However, upon integration in practical device designs, the presence of silver oxide, which instantaneously forms on the Ag-NW surfaces in ambient conditions, is unwanted. Here, we report on the functionalization of Ag-NWs with 4-nitrophenyl moieties through A-C bonds using a versatile two step reduction process, i.e., ascorbate reduction combined electrografting. We show that 40% of the Ag atop sites were terminated and provide high surface stability toward oxidation for more than 2 months while keeping the same intrinsic conductivity as in bulk silver.

https://doi.org/10.1021/acsami.5b06830