Zinc oxide growth morphology on self-assembled monolayer modified silver surfaces

Langmuir : the ACS Journal of Surfaces and Colloids
Julia W P HsuLuke N Brewer

Abstract

Using organic molecules to direct inorganic crystal growth has opened up new avenues for controlled synthesis on surfaces. Combined with soft lithography to form patterned templates, self-assembled monolayers (SAMs) have been shown to be a powerful approach for the assembly of inorganic nanostructures. In this work, we show that the surface free energy of SAM-modified silver, which depends on end groups and deposition method of SAMs, has a dramatic effect on the nucleation and growth of crystalline ZnO, a technologically important material, from supersaturated solutions. For SAMs with inert methyl end groups, ZnO nucleation is inhibited. For SAMs with chemically active (carboxylic or thiol) end groups, the ZnO morphology is found to be three-dimensional nanorods on low-surface-energy surfaces and two-dimensional thin films on high-energy surfaces.

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Citations

Apr 5, 2013·ACS Applied Materials & Interfaces·Chia-Hung LaiTai-Chou Lee
Aug 20, 2011·Biomacromolecules·Ruben LöbbickeAndreas Taubert
Dec 25, 2012·Journal of Colloid and Interface Science·Munir AshrafChristian Courtois
Dec 22, 2009·Physical Chemistry Chemical Physics : PCCP·Masanori SakamotoTetsuro Majima
Mar 1, 2017·Beilstein Journal of Nanotechnology·Nina J BlumensteinJoachim Bill
Oct 2, 2015·Beilstein Journal of Nanotechnology·Nina J BlumensteinThomas Schimmel

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