In our latest article, we explore the existence of a diffusion phenomenon at the interface of laser welded polymer-metal assemblies. The results show that a diffusion of the metal in the polymer actually occurs at a very small scale - about 20 nm - compared to the scale of the welding. Nonetheless, it sheds a new light on our understanding of the laser welding process, hence of the adhesion process in this case. This article was published in open access.

La Rochelle harbour by night

It is a great a pleasure to announce the publication of our latest article about the use of matrices in ToF-SIMS to analyze OLED molecules. The main conclusion of the article is that the ion yield can be enhanced just by spraying solvent on the surfaces to analyze. This opens new opportunities for material characterization. Indeed, spraying solvent is a fast, easy, and cheap methodology, hence easily transferable to many different samples. It also presents the advantage to limit the risk of mass interferences in the spectra, as the solvent evaporates before the measurements. The article also shows the investigation of the surface modification induced by the spraying of matrices/solvents on the surface topography.

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