Pablos-Martín, A. deA. dePablos-MartínDurán, A.A.DuránPascual, M.J.M.J.PascualSoria, S.S.SoriaRighini, G.C.G.C.RighiniRamírez, M.O.M.O.RamírezBausá, L.E.L.E.BausáRistic, D.D.RisticFerrari, M.M.FerrariHöche, T.T.Höche2022-03-042022-03-042012https://publica.fraunhofer.de/handle/publica/23079910.1117/2.1201209.004335General principles of nanocrystallization in oxyfluoride glasses, with special attention to the crystallization of fluoride and double-fluoride phases are presented. Collaboration with other institutions has allowed the optical characterization of these materials, which suggests a promising future for them, for example, in optics and photovoltaics. Finding the best material requires that several factors be improved: crystallization of the appropriate fluoride crystal (including new phases such as sodium lutetium fluoride and lithium lutetium fluoride), a high crystalline fraction, and maximum incorporation of the RE ion into the crystalline structure, among others.entransparent glass-ceramicsnanocrystallization in oxyfluoride glassescrystallization of fluoride and double-fluoride phases620journal article