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IrOx–carbon nanotube hybrids: A nanostructured material for electrodes with increased charge capacity in neural systems

IrOx–carbon nanotube hybrids: A nanostructured material for electrodes with increased charge capacity in neural systems

Acta Biomaterialia, Volume 10, Issue 10, October 2014, Pages 4548–4558.     Nina M. Carretero, Mathieu P. Lichtenstein, Estela Pérez, Laura Cabana, Cristina Suñol, Nieves Casañ-Pastor

Self-assembled pit arrays as templates for the integration of Au nanocrystals in oxide surfaces

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Konstantinovic contentpage-1

 

Z. Konstantinović F. Sandiumenge J. Santiso Ll. Balcells and B. Martínez
Nanoscale, 2013,5, 1001-1008

 

DOI: 10.1039/C2NR33181K

 

 

 

 


We report on the fabrication of long-range ordered arrays of Au nanocrystals (sub-50 nm range) on top of manganite (La2/3Sr1/3MnO3) thin films achieving area densities around 2 × 1010 gold nanocrystals per cm2, well above the densities achievable by using conventional nanofabrication techniques. The gold–manganite interface exhibits excellent conduction properties. Long-range order is achieved by a guided self-assembling process of Au nanocrystals on self-organized pit-arrays acting as a template for the nucleation of gold nanocrystals. Self-organization of pits on the manganite film surface promoted by the underlying stepped SrTiO3 substrate is achieved by a fine tuning of the growth kinetic pathway, taking advantage of the unusual misfit strain relaxation behaviour of manganite films.

 

Tags: nanocrystals

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