Archivo de la categoría: microscopy

Femtosecond laser thinning for resistivity control of tungsten ditelluride thin-films synthesized from sol-gel deposited tungsten oxide

In this work we present a route for fabricating WTe2 thin-films together with femtosecond laser post processing, enabling to finely control the conductivity. First, we produce amorphous films of WO3 on Si by spin-coating a sol-gel precursor followed by a … Sigue leyendo

Publicado en laser irradiation, microscopy, nanocharacterization, nanoscience, nanotechnology, Publications, Raman spectroscopy, semiconductor | Etiquetado | Comentarios desactivados en Femtosecond laser thinning for resistivity control of tungsten ditelluride thin-films synthesized from sol-gel deposited tungsten oxide

ICMM Days

The Materials Science Institute of Madrid organized an internal meeting in Buitrago del Lozoya for a bbrief presentation of the different research groups and services. Here is the presentation from our group of Nanocharacterization of Materials (Nanocarma)

Publicado en Gallery, HRTEM, ion irradiation, laser irradiation, microscopy, nanocharacterization, nanoscience, nanotechnology, People, Publications, Raman spectroscopy, Sin categoría, transition metal oxides | Etiquetado , , , , , , , , , | Comentarios desactivados en ICMM Days

TEM study of ∼PbCr2S4 columnar misfit phases

The disordered structure of the columnar misfit ​∼ ​PbCr2S4 phase (∼ character indicates that it is close to the stoichiometric composition but slightly away) has been revealed by means of transmission electron microscopy (TEM) varied techniques such as selected area electron diffraction … Sigue leyendo

Publicado en HRTEM, microscopy, nanocharacterization | Comentarios desactivados en TEM study of ∼PbCr2S4 columnar misfit phases

Coexistence of Two Spin Frustration Pathways in the Quantum Spin Liquid Ca10Cr7O28

Kagome antiferromagnetic lattices are of high interest because the geometric frustration is expected to give rise to highly degenerated ground states that may host exotic properties such as quantum spin liquid (QSL). Ca10Cr7O28 has been reported to display all the … Sigue leyendo

Publicado en HRTEM, microscopy, nanocharacterization, nanoscience, Publications, transition metal oxides | Comentarios desactivados en Coexistence of Two Spin Frustration Pathways in the Quantum Spin Liquid Ca10Cr7O28

Spatially resolved MoOx phases by laser localized oxidation of MoO2

MoO2 thin films were subjected to a laser localized oxidation process that allowed to obtain different well defined MoOx phases. In particular, spatially resolved MoO2, α-MoO3, β-MoO3, amorphous a-MoO3, and Mo4O11 regions were obtained as a function of the laser … Sigue leyendo

Publicado en laser irradiation, microscopy, nanocharacterization, Raman spectroscopy, semiconductor, Sin categoría, transition metal oxides | Etiquetado , , , , , , | Comentarios desactivados en Spatially resolved MoOx phases by laser localized oxidation of MoO2

Presentación de la tesis doctoral de Jon Canca Ruiz

Jon Canca Ruiz va a defender su tesis doctoral «Fenómenos de orden-desorden en óxidos con estructura tipo rutilo y su aplicación como soportes en catalizadores heterogéneos» dentro del Programa de Doctorado de Química Aplicada de la Universidad Autónoma de Madrid. … Sigue leyendo

Publicado en microscopy, nanocharacterization, nanoscience, People, Ph.D. thesis, Raman spectroscopy, rutile crystal structure, transition metal oxides | Etiquetado , , , , , , , , , , , , , , , , , , | Comentarios desactivados en Presentación de la tesis doctoral de Jon Canca Ruiz

New Order in (BiS)1.19(Bi1/3Cr2S4) Misfit Layer Compound

A. Gómez‐Herrero, A. R. Landa‐Cánovas and L. C. Otero‐Díaz, “New Order in (BiS)1.19(Bi1/3Cr2S4) Misfit Layer Compound,” Z. Anorg. Allg. Chem. 647, 1–7 (2021). In a sample with nominal composition BiCr2S5 a new misfit layer compound has been synthesized and studied … Sigue leyendo

Publicado en HRTEM, microscopy, nanocharacterization, Publications, Sin categoría | Etiquetado , | Comentarios desactivados en New Order in (BiS)1.19(Bi1/3Cr2S4) Misfit Layer Compound

Fabrication and characterization of nanostructured porous silicon-silver composite layers by cyclic deposition: dip-coating vs spin-coating

N. Naveas, M. Manso-Silván, R. Pulido, F. Agulló-Rueda, V. Torres-Costa, T. Plaza, H. Pesenti, G. Recio, and J. Hernandez-Montelongo, “Fabrication and characterization of nanostructured porous silicon-silver composite layers by cyclic deposition: dip-coating vs spin-coating,“ Nanotechnol. 31, 365704 (2020)

Publicado en microscopy, nanocharacterization, nanoscience, nanotechnology, Publications, Raman spectroscopy, silicon | Etiquetado , , , | Comentarios desactivados en Fabrication and characterization of nanostructured porous silicon-silver composite layers by cyclic deposition: dip-coating vs spin-coating

Laser writing of nanostructured silicon arrays for the SERS detection of biomolecules with inhibited oxidation

P. Pellacani, V. Torres-Costa, F. Agulló-Rueda, R. Vanna, C. Morasso, M. Manso Silván, “Laser writing of nanostructured silicon arrays for the SERS detection of biomolecules with inhibited oxidation,” Colloids Surf. B 174, 174–180 (2019)

Publicado en laser irradiation, microscopy, nanocharacterization, nanoscience, nanotechnology, Publications, Raman spectroscopy, silicon | Etiquetado , , , , , , , , | Comentarios desactivados en Laser writing of nanostructured silicon arrays for the SERS detection of biomolecules with inhibited oxidation

Nanostructural changes upon substitutional Al doping in ZnO sputtered films

A. R. Landa-Cánovas, J. Santiso, F. Agulló-Rueda, P. Herrero, E. Navarrete-Astorga, E. Ochoa-Martínez, J. R. Ramos-Barrado, and M. Gabás, “Nanostructural changes upon substitutional Al doping in ZnO sputtered films,” Ceram. Int. 45, 6319–6327 (2019). Al:ZnO layers, with low and high … Sigue leyendo

Publicado en HRTEM, microscopy, nanocharacterization, nanoscience, Publications, Raman spectroscopy, transparent conductive oxides, zinc oxide | Etiquetado , , , , , , , , | Comentarios desactivados en Nanostructural changes upon substitutional Al doping in ZnO sputtered films