http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-103361045-B
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_cc4e13141d402ceb885f368dfa042348 |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02B20-00 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K11-59 |
| filingDate | 2013-07-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2014-11-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5cd38a1abd27fd59ea3a468a6f177c49 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1eb346a655d3bc1d3ae70905495eb4b3 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_daf04f458013af1700ae661cb713015c http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e95023596fe2d7904d46391280ae5b7c |
| publicationDate | 2014-11-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-103361045-B |
| titleOfInvention | Nitrogen oxide fluorescent powder used in white-light LED, and preparation method thereof |
| abstract | The invention discloses a preparation method of nitrogen oxide fluorescent powder used in white-light LED. According to the invention, Si3N4, CaO or precursor thereof, SiO2, and Eu2O3 are adopted as raw materials, wherein a molar ratio of CaO:SiO2:Si3N4:Eu2O3=(1-x):2-3y:y:x/2. x is no smaller than 0.005 and no greater than 0.05, and y is no smaller than 1/3 and no greater than 2/3. A zinc-containing compound is added as a flux, and the nitrogen oxide fluorescent powder is prepared. With the method, pure-phase nitrogen oxide Ca1-xSi2O2N2:xEu<2+> fluorescent powder can be prepared. The fluorescent powder has the advantages of good physiochemical stability and good thermal stability. Crystallinity of synthesized block-shaped crystal powder is better, and luminescence is better. Bright yellow light can be emitted under the excitation of long-wavelength ultraviolet light. With the preparation method, the process steps are simple, cost is low, popularization is easy, and large-scale industrialized production can be carried out. |
| priorityDate | 2013-07-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
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