Hsu C.-H.Lu C.-H.2019-05-132019-05-13201100027820https://scholars.lib.ntu.edu.tw/handle/123456789/407412La3+/Ce3+-codoped carbonitride phosphors-Y 2Si4N6C were synthesized via a carbothermal reduction nitridation route. For the Ce3+-doped Y2Si 4N6C phosphors, the emission spectrum exhibited a broad band at around 538 nm due to the f-d transition of Ce3+ ions. When La3+ ions were incorporated into the host, the emitting colors of (Y, La)2Si4N6C: Ce3+ phosphors varied from a yellowish green to blue region. The great blue shift in emission bands was due to the variation in the crystal-field strength around the activators. In addition, (Y, La)2Si4N6C:Ce3+ phosphors exhibited high thermal stability, indicating the superior suitability in ultraviolet light-emitting diodes. ? 2011 The American Ceramic Society.journal article10.1111/j.1551-2916.2011.04571.x2-s2.0-79958175856https://www.scopus.com/inward/record.uri?eid=2-s2.0-79958175856&doi=10.1111%2fj.1551-2916.2011.04571.x&partnerID=40&md5=5d708ebb65e63889127dd86031e66f73