EP 2414482 A1 20120208 - EUROPIUM, YTTRIUM OXIDE, OR GADOLINIUM CORE/SHELL COMPOSITION, PHOSPHOR INCLUDING SAID COMPOSITION, AND METHODS FOR PREPARING SAME
Title (en)
EUROPIUM, YTTRIUM OXIDE, OR GADOLINIUM CORE/SHELL COMPOSITION, PHOSPHOR INCLUDING SAID COMPOSITION, AND METHODS FOR PREPARING SAME
Title (de)
EUROPIUM-, YTTRIUMOXID- ODER GADOLINIUMKERNSCHALEZUSAMMENSETZUNG, DIESE ENTHALTENDER LEUCHTSTOFF SOWIE HERSTELLUNGSVERFAHREN FÜR DIE ZUSAMMENSETZUNG
Title (fr)
COMPOSITION A BASE D'EUROPIUM, D'OXYDE D'YTTRIUM OU DE GADOLINIUM, DE TYPE COEUR/COQUILLE, LUMINOPHORE COMPRENANT CETTE COMPOSITION ET PROCEDES DE PREPARATION
Publication
Application
Priority
- EP 2010053896 W 20100325
- FR 0901534 A 20090330
Abstract (en)
[origin: WO2010112394A1] The invention relates to a composition, as well as to a phosphor containing said composition, including an inorganic core and a europium and yttrium oxide or gadolinium shell uniformly covering the inorganic core at a thickness greater than or equal to 300 nm. The composition is produced by: forming a suspension including the inorganic core and the pH of which is 8 to 11; adding a solution containing a europium salt and an yttrium or gadolinium salt to the suspension and maintaining the pH of the reaction medium at a constant value; and separating the formed solid and calcining same to a temperature of 1000°C at most.
IPC 8 full level
C09K 11/78 (2006.01); C09K 11/81 (2006.01)
CPC (source: EP KR US)
C09K 11/02 (2013.01 - EP US); C09K 11/7783 (2013.01 - EP US); C09K 11/7787 (2013.01 - EP US); C09K 11/7795 (2013.01 - EP US); H01L 33/00 (2013.01 - KR)
Citation (search report)
See references of WO 2010112394A1
Citation (examination)
- US 5643674 A 19970701 - BRUNO SALVATORE ANTHONY [US], et al
- WO 2008012266 A1 20080131 - RHODIA OPERATIONS [FR], et al
- ALTEO: "Speciality aluminas for standard ceramics", 10 July 2015 (2015-07-10), XP055276560, Retrieved from the Internet <URL:http://www.alteo-alumina.com/sites/default/files/applications/alteo_standard_ceramics.pdf> [retrieved on 20160531]
Designated contracting state (EPC)
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 SE SI SK SM TR
DOCDB simple family (publication)
FR 2943682 A1 20101001; FR 2943682 B1 20120330; CA 2752664 A1 20101007; CA 2752664 C 20140218; CN 102356142 A 20120215; CN 102356142 B 20160413; EP 2414482 A1 20120208; JP 2012521953 A 20120920; JP 6038648 B2 20161207; KR 101350548 B1 20140110; KR 20110122215 A 20111109; US 2012032113 A1 20120209; US 9045679 B2 20150602; WO 2010112394 A1 20101007
DOCDB simple family (application)
FR 0901534 A 20090330; CA 2752664 A 20100325; CN 201080011936 A 20100325; EP 10710053 A 20100325; EP 2010053896 W 20100325; JP 2012502583 A 20100325; KR 20117022835 A 20100325; US 201013262099 A 20100325