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1. (WO2015119125) PRODUCTION METHOD FOR PHOSPHOR MICROPARTICLES, PHOSPHOR THIN FILM, WAVELENGTH CONVERSION FILM, WAVELENGTH CONVERSION DEVICE, AND SOLAR CELL

Pub. No.:    WO/2015/119125    International Application No.:    PCT/JP2015/053030
Publication Date: Fri Aug 14 01:59:59 CEST 2015 International Filing Date: Thu Feb 05 00:59:59 CET 2015
IPC: C09K 11/08
C09K 11/67
H01L 31/055
Applicants: NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY
独立行政法人産業技術総合研究所
NGK INSULATORS, LTD.
日本碍子株式会社
Inventors: TAKASHIMA Hiroshi
高島浩
HAKUTA Yukiya
伯田幸也
TORII Atsushi
鳥井淳史
HISHIKI Tatsuya
菱木達也
Title: PRODUCTION METHOD FOR PHOSPHOR MICROPARTICLES, PHOSPHOR THIN FILM, WAVELENGTH CONVERSION FILM, WAVELENGTH CONVERSION DEVICE, AND SOLAR CELL
Abstract:
The present invention pertains to a production method for phosphor microparticles, a phosphor thin film, a wavelength conversion film, a wavelength conversion device, and a solar cell. A production method for phosphor microparticles in which phosphor microparticles having a perovskite structure indicated by (Ca, Sr) TiO3: Pr3+ and having a particle diameter of no more than 100 nm at most are produced, said production method having a step in which a raw material selected from Ca, Sr, and Ti ions, an oxide or a hydride is caused to have a hydrothermal reaction with a raw material comprising Pr ions, in water in a subcritical to a supercritical state, the molar ratio of (Ca+Sr)/Ti in the raw material composition being 1.0-2.5.