公开(公告)号：US20180086975A1

公开(公告)日：2018-03-29

申请号：US15704689

申请日：2017-09-14

Applicant: NICHIA CORPORATION

Inventor： Shozo TAKETOMI ,  Shoji HOSOKAWA ,  Tomokazu YOSHIDA ,  Kazuya NISHIMATA

IPC: C09K11/64 ,  H01L33/50

CPC classification number: C09K11/643 ,  H01L33/502 ,  H01L33/505 ,  H01L2224/48247 ,  H01L2224/48257 ,  H01L2224/73265

Abstract: Provided are a method of producing an aluminate fluorescent material, an aluminate fluorescent material and a light emitting device. The production method includes heat-treating a mixture prepared by mixing a compound containing at least one alkaline earth metal element selected from the group consisting of Ba, Sr and Ca, a Mg-containing compound not acting as a flux, a Mn-containing compound, an Al-containing compound, a first flux containing at least one alkali metal element selected from the group consisting of Na, K, Rb and Cs, and a Mg-containing second flux to give an aluminate fluorescent material.