EP 4172290 A1 20230503 - PHOSPHOR PARTICLE COATING
Title (en)
PHOSPHOR PARTICLE COATING
Title (de)
PHOSPHORPARTIKELBESCHICHTUNG
Title (fr)
REVÊTEMENT DE PARTICULES DE LUMINOPHORE
Publication
Application
Priority
- US 202016915422 A 20200629
- EP 20189538 A 20200805
- US 2021039514 W 20210629
Abstract (en)
[origin: WO2022006048A1] The invention provides a method for providing a luminescent particle (100) with a hybrid coating, the method comprising: (i) providing a luminescent core (102) comprising a primer layer (105) on the luminescent core (102); (ii) providing a main ALD coating layer (120) onto the primer layer (105) by application of a main atomic layer deposition process, the main ALD coating layer (120) comprising a multilayer (1120) with two or more layers (1121) having different chemical compositions, and wherein in the main atomic layer deposition process a metal oxide precursor is selected from a group of metal oxide precursors comprising Al, Zn, Hf, Ta, Zr, Ti, Sn, Nb, Y, Ga, and V; (iii) providing a main sol-gel coating layer (130) onto the main ALD-coating layer (120) by application of a main sol-gel coating process, the main sol-gel coating layer (130) having a chemical composition different from one or more of the layers (1121) of the multilayer (1120).
IPC 8 full level
C09K 11/02 (2006.01); C09K 11/77 (2006.01); C23C 16/40 (2006.01); C23C 16/44 (2006.01); C23C 16/455 (2006.01); H01L 21/02 (2006.01); H05B 33/20 (2006.01)
CPC (source: EP KR)
C09K 11/025 (2013.01 - EP KR); C09K 11/77346 (2021.01 - EP KR); C23C 16/40 (2013.01 - EP KR); C23C 16/405 (2013.01 - EP KR); C23C 16/4417 (2013.01 - EP KR); C23C 16/45555 (2013.01 - EP KR); C23C 16/56 (2013.01 - EP KR); C23C 18/1216 (2013.01 - EP KR); C23C 18/122 (2013.01 - EP KR); C23C 18/1254 (2013.01 - EP KR); C23C 18/1295 (2013.01 - EP KR); H01L 33/502 (2013.01 - KR); H05B 33/20 (2013.01 - EP KR)
Citation (search report)
See references of WO 2022006048A1
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)
WO 2022006048 A1 20220106; CN 115698225 A 20230203; EP 4172290 A1 20230503; JP 2023534142 A 20230808; KR 20230027288 A 20230227
DOCDB simple family (application)
US 2021039514 W 20210629; CN 202180046384 A 20210629; EP 21742657 A 20210629; JP 2022579733 A 20210629; KR 20237002853 A 20210629