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Laser fabrication of diamond micro-cutting tool-related geometries using a high-numerical aperture micro-scanning system

Eberle, Gregory ; Dold, Claus ; Wegener, Konrad

In: The International Journal of Advanced Manufacturing Technology, 2015, vol. 81, no. 5-8, p. 1117-1125

Université de Fribourg

Decrypting silicic magma/plug fragmentation at Azufral crater lake, Northern Andes : insights from fine to extremely fine ash morpho-chemistry

Pardo, Natalia ; Avellaneda, Jose D. ; Rausch, Juanita ; Jaramillo-Vogel, David ; Gutiérrez, Mariana ; Foubert, Anneleen

In: Bulletin of Volcanology, 2020, vol. 82, no. 12, p. 79

Azufral (SW Colombia) is a dangerous silicic volcano hosting a crater lake, which serves as an excellent example of an incipient plug disruption through phreatomagmatism. We studied the youngest succession of dilute pyroclastic density currents (PDCs) onlapping the north-eastern crater rim. Scanning electron microscopy coupled with energy-dispersive X-ray spectroscopy was used to carry out an...

Université de Fribourg

Efficient perovskite nanocrystal light-emitting diodes using a benzimidazole-substituted anthracene derivative as the electron transport material

Kumar, Sudhir ; Marcato, Tommaso ; Vasylevskyi, Serhii I. ; Jagielski, Jakub ; Fromm, Katharina M. ; Shih, Chih-Jen

In: Journal of Materials Chemistry C, 2019, vol. 7, no. 29, p. 8938–8945

Colloidal nanocrystals of organic–inorganic hybrid perovskites (OIHPs) are an emerging class of solid-state lighting materials owing to their outstanding photophysical properties. Considerable research efforts have been devoted to the fabrication of high-performance light-emitting diodes (LEDs) based on these materials, including interface engineering which is essential for balancing the...