Enhanced water durability of phosphor-in-glass (PiG) basing on SnCl2–P2O5 glass matrix induced by adding ZnO

Phosphor-in-glass (PiG) composed of glass matrix and the embedded phosphor particles has been intensively developed to meet the requirement of high-power LED lighting sources. P 2 O 5 -based glass matrices are the promising candidates to fabricate high luminescence PiG in view of their low-melting temperature to avoid the erosion of phosphor by glass melting, however, their poor chemical durability limited the practical application. In this work, the water durability of PiG basing on SnCl 2 –P 2 O 5 –ZnO glass matrix embedded with YAG: Ce[Formula: see text] phosphor is demonstrated. With the addition of ZnO, the water durability of SnCl 2 –P 2 O 5 - based PiG is enhanced significantly without obvious loss of light output. The influence of ZnO addition with variable contents on the microstructure, photoluminescent properties and the water durability of the obtained PiG is investigated through a series of characterizations. The obvious improvement of the water erosion resistance induced by adding ZnO provides an optional route to develop higher stability, lead-free, cost-effective low-melting point P 2 O 5 -based glass matrix for fabrication of high performance PiG materials.