Process Window for Seeded Growth of Arrays of Quasi-Spherical Substrate-Supported Au Nanoparticles.

ABSTRACT: The controlled growth of surface-supported metal nanoparticles (NPs) is essential to a broad range of applications. To this end, we explore the seeded growth of highly ordered arrays of substrate-supported Au NPs through a fully orthogonal design of experiment (DoE) scheme applied to a reaction system consisting of HAuCl₄, citrate, and hydrogen peroxide. Scanning electron microscopy in combination with digital image analysis (DIA) is used to quantitatively characterize the resultant NP populations in terms of both particle and array features. The effective optical properties of the NP arrays are additionally analyzed using spectroscopic ellipsometry (SE), allowing characteristics of the localized surface plasmon resonances (LSPRs) of the arrays to be quantified. We study the dep

SUBMITTER: Landeke-Wilsmark B 

PROVIDER: S-EPMC8280595 | biostudies-literature | 2021 May

REPOSITORIES: biostudies-literature