Grazing-incidence Small-angle X-ray Scattering Technique for Probing Nanostructures and Processes at Nanoscale

The paper presents the grazing-incidence small-angle X-ray scattering technique and its application to the studies of self-assembly and re-assembly effects of colloidal nanoparticles. Two basic cases are exemplified - solvent evaporation driven self-assembly and self-assembly driven by barrier movement in the Langmuir-Blodgett trough. Studies of the nanoparticle re-assembly effects due to the surfactant removal complete the overview. These examples document strength of GISAXS for an in situ tracking of processes at nanoscale. The results have direct implications for tailored preparation of the self -assembled nanoparticle templates for sensing, plasmonics and other applications

Grazing-incidence Small-angle X-ray Scattering Technique for Probing Nanostructures and Processes at Nanoscale

The paper presents the grazing-incidence small-angle X-ray scattering technique and its application to the studies of self-assembly and re-assembly effects of colloidal nanoparticles. Two basic cases are exemplified - solvent evaporation driven self-assembly and self-assembly driven by barrier movement in the Langmuir-Blodgett trough. Studies of the nanoparticle re-assembly effects due to the surfactant removal complete the overview. These examples document strength of GISAXS for an in situ tracking of processes at nanoscale. The results have direct implications for tailored preparation of the self -assembled nanoparticle templates for sensing, plasmonics and other applications

X-ray reflectivity and non-specular scattering investigation of amorphous W/Si multilayers after rapid thermal annealing

The specular reflectivity and non-specular scattering measurements at grazing incidence were used to characterize the evolution of the amorphous W/Si multilayer structure with the nominal period of 7 nm after the rapid thermal annealing. No mixing or interdiffusion worsening the perfection of the interfaces takes place up to the 773K/5s annealing. The complex interface phenomena start after the 773K/20s annealing connected with the displacement and coarsening of the interfaces. After the 1023K/5s annealing the ML structure collapsed

Nitric Dioxide and Acetone Sensors Based on Iron Oxide Nanoparticles

The Fe2O3 and CoFe2O4 nanoparticle-based Langmuir–Blodgett films for sensing of nitric dioxide(NO2) and acetone vapours have been explored. Both the sensitivity of the chemiresistors anddynamic properties, such as the response/recovery time, have been probed in dependence of thenumber of nanoparticle monolayers and working temperatures. The response of 23 at the NO2concentration of 1 ppm, i.e., approaching the canine detection limit, has been monitored implyingthe appropriateness for the detection of nitrate-based explosives