Kräuter, G.G.KräuterEberhardt, A.A.EberhardtPeskoller, F.F.PeskollerGüldal, N.S.N.S.GüldalLell, A.A.LellRitasalo, R.R.RitasaloPilvi, T.T.PilviRömer, M.M.RömerDomann, G.G.DomannLöbmann, P.P.Löbmann2022-03-062022-03-062021https://publica.fraunhofer.de/handle/publica/26882210.1007/s10971-020-05457-ySol-gel formulations were applied to replace silicone as matrix material for phosphors in pc-LEDs. The content of organic groups was minimized in order to reduce yellowing during the operation of the elements. It was possible to evenly embed YAG:Ce particles in sol-gel binders. Further processing on LED chips resulted in operational light sources; and their performance was compared to standard silicone-based elements. Additional deposition of ALD laminates seals possible defects within the sol-gel matrix as additional protection of the phosphors and the underlying LEDs.en666620journal article