Meyer, FabianFabianMeyerBüchler, AndreasAndreasBüchlerBrand, Andreas A.Andreas A.BrandDasa, M.K.M.K.DasaNekarda, Jan F.Jan F.NekardaPreu, RalfRalfPreu2022-03-052022-03-052018https://publica.fraunhofer.de/handle/publica/25359210.1007/s00339-018-1682-6In this study, we use pump-probe microscopy to examine the melting and solidification dynamics of silicon during and after a UV laser pulse with a duration of 30ns. Below the ablation threshold, we observe lateral melt front contraction velocities of up to 600ms−1. The peak velocities spatially coincide with a ring of lower crystallinity within the formerly molten area, as we show with spatially resolved Raman spectroscopy.enPV Produktionstechnologie und QualitätssicherungPhotovoltaikSilicium-PhotovoltaikCharakterisierung von Prozess- und Silicium-MaterialienKontaktierung und Strukturierungmeltingcrystallizationspectroscopymicroscopy621journal article