Aligned Co nanodiscs by electrodeposition on GaAs

Electrochemical synthesis of porous cobalt nanowall arrays

“…However, no aligned nanowall structures were found. This is consistent with the recent report from Kavanagh's group [22], in which the (NH 4 ) + ions were considered to modify the Co nucleation environment by preferentially adsorbing on certain orientations such as Co(001), thereby retarding the growth rate of Co along its directions more than others. Therefore, the NH 3 ligand has shown a role influencing aspect of the final products by providing a 3D Co framework and modifying the nucleation environment for epitaxial growth.…”

“…In the past several years, Co nanocrystals have been synthesized by several chemical methods, such as metal carbonyl pyrolysis [19][20][21], electrochemical deposition 1 Author to whom any correspondence should be addressed. and solution-phase metal salt reduction [22,23]. However, few reports related to the synthesis of porous cobalt nanomaterials have been found in the literature up to now [24,25].…”

Effects of visible and synchrotron x-ray radiation on the growth of silver nanoplates on n-GaAs wafers: A comparative study

“…The strategies generally adopted for creating metal nanostructures on semiconductor substrates include synthesis of metal nanostructures in solution via well-established approaches 3-7 followed by postdeposition ͑and/or assembly͒ of the assynthesized nanostructures on the chosen semiconductor substrates. 11 Recently, we have developed a simple and efficient approach to directly grow Ag nanoplates ͑with rough 12 and smooth surfaces 13 ͒ on n-type GaAs wafers. The use of surfactant molecules, however, complicates the reactions and contaminates the surfaces of the resultant metal nanostructures, leading to degradation of their performance in some applications.…”