Title:
【発明の名称】酸化物ベースの発光物質
Document Type and Number:
Japanese Patent JP2003534442
Kind Code:
A
Abstract:
A process is disclosed for preparing phosphor particles of a doped host oxide which comprises: preparing an aqueous solution of salts of the host ion and of the dopant ion which is a rare earth, thorium, titanium, silicon, bismuth, copper, silver, tungsten or chromium and a water soluble compound, which decomposes under the reaction conditions to convert said salts into hydroxycarbonate, heating the solution so as to cause said compound to decompose, recovering the resulting precipitate and calcining it at a temperature of at least 500° C.
Inventors:
Peter James Dobson
Gareth Wakefield
Gareth Wakefield
Application Number:
JP2001587075A
Publication Date:
November 18, 2003
Filing Date:
May 22, 2001
Export Citation:
Assignee:
ISIS INNOVATION LIMITED
International Classes:
C09K11/08; C09K11/02; C09K11/54; C09K11/59; C09K11/62; C09K11/66; C09K11/67; C09K11/68; C09K11/77; C09K11/78; (IPC1-7): C09K11/08; C09K11/54; C09K11/59; C09K11/62; C09K11/66; C09K11/67; C09K11/68; C09K11/78
Attorney, Agent or Firm:
Aoyama Ryo (2 outside people)