Title:
PRODUCTION METHOD OF POWDER CONTAINING PHOSPHOR PARTICLE
Document Type and Number:
Japanese Patent JP2023135147
Kind Code:
A
Abstract:
To provide a production method of phosphor particles which is suitably usable for a light-emitting device having sufficient brightness.SOLUTION: According to an aspect of the disclosure, there is provided a production method of powder containing phosphor particles of which the main crystalline phase has the same crystal structure as that of CaAlSiN3. The production method comprises a firing step of heat-treating raw material powder containing at least one of a calcium source and a strontium source, an aluminum source, a silicon source, a nitrogen source, and a europium source to obtain a fired product. In the raw material powder, a ratio of the total amount of substance of calcium, strontium, and europium to the amount of substance of aluminum is more than 1.0000.SELECTED DRAWING: None
Inventors:
TANAKA MOEKO
NOMIYAMA TOMOHIRO
NOMIYAMA TOMOHIRO
Application Number:
JP2022040211A
Publication Date:
September 28, 2023
Filing Date:
March 15, 2022
Export Citation:
Assignee:
DENKA CO LTD
International Classes:
C09K11/64; C09K11/08
Attorney, Agent or Firm:
Yoshiki Hasegawa
Yoshinori Shimizu
Takeshi Nakatsuka
Yoshinori Shimizu
Takeshi Nakatsuka