EP 4100488 A1 20221214 - DRY PROCESS FOR SYNTHESIS OF A PHOSPHOR BY TREATMENT UNDER A FLUORINE ATMOSPHERE
Title (en)
DRY PROCESS FOR SYNTHESIS OF A PHOSPHOR BY TREATMENT UNDER A FLUORINE ATMOSPHERE
Title (de)
TROCKENVERFAHREN ZUR HERSTELLUNG EINES PHOSPHORS DURCH BEHANDLUNG UNTER EINER FLUORATMOSPHÄRE
Title (fr)
PROCÉDÉ DE SYNTHÈSE EN VOIE SÈCHE D'UN LUMINOPHORE PAR TRAITEMENT SOUS ATMOSPHÈRE DE FLUOR
Publication
Application
Priority
- FR 2001050 A 20200203
- EP 2021052576 W 20210203
Abstract (en)
[origin: WO2021156320A1] The invention relates to a dry process for synthesis of a phosphor of formula Ax[BFy]:C comprising a step of providing an initial composition comprising at least two synthesis precursors and at least one chemical doping source, a step of heating the initial composition to a fluorination temperature under an inert atmosphere or under vacuum, and a step of treating, under a fluorine atmosphere, the composition obtained at the end of the heating step, and a step of returning to ambient temperature under an inert atmosphere. The invention also relates to a composition comprising a phosphor of formula Ax[BFy]:C and obtained according to the synthesis process described above, the composition being free of hydrogen fluoride.
IPC 8 full level
C09K 11/61 (2006.01)
CPC (source: EP US)
C09K 11/617 (2013.01 - EP US); Y02B 20/00 (2013.01 - EP)
Citation (search report)
See references of WO 2021156320A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
Designated validation state (EPC)
KH MA MD TN
DOCDB simple family (publication)
FR 3106832 A1 20210806; FR 3106832 B1 20220429; EP 4100488 A1 20221214; US 2023066879 A1 20230302; WO 2021156320 A1 20210812
DOCDB simple family (application)
FR 2001050 A 20200203; EP 2021052576 W 20210203; EP 21703271 A 20210203; US 202117797008 A 20210203