Werner Egger

TL;DR: PALS showed that on increasing the fluence above the Ti/Sr∼1 value, the concentration ratio [V(Sr)]/[V(Ti)] systematically increased, and reducing the fluences into the Ti-poor region below resulted in additional vacancy cluster defect formation.

TL;DR: In this article, the median implantation depth as a function of implantation energy, z1/2(E), of 3-18 keV positrons and their implantation profile P(z,E) in a total of 13 thin films of atactic polystyrene, poly(styrene-co-acrylonitrile), and polymethylmethacrylate spin coated onto a silicon substrate were determined from positron lifetime measurements using a pulsed, low-energy positron beam.

TL;DR: In this paper, the synthesis and functioning of TFN membranes are investigated via targeted membrane synthesis and thorough characterization via STEM-EDX, XRD and PALS, and it is hypothesized that the acid generated during the interfacial polymerization (IP) at least partially degrades the crystalline, acid-sensitive ZIF-8 and that this influences the membrane formation.

TL;DR: The Munich pulsed low energy positron beam system (PLEPS) is now installed at the high intensity positron source (NEPOMUC) at the Munich Research Reactor FRM-II as mentioned in this paper.

TL;DR: This work shows how the confinement of anthracene in a well-chosen MOF host leads to reversible yellow-to-purple photoswitching of the fluorescence emission, which holds promise in product authentication and secure communication applications.