http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-104974756-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K11-81 |
| filingDate | 2015-07-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2017-01-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2017-01-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-104974756-B |
| titleOfInvention | Cerium and terbium mono-doped/codoped yttrium sodium phosphate fluorescent powder, and preparation method thereof |
| abstract | The invention discloses a cerium and terbium mono-doped/codoped yttrium sodium phosphate fluorescent powder. General chemical formula of the cerium and terbium mono-doped/codoped yttrium sodium phosphate fluorescent powder is Na3Y2(1-x-y)(PO4)3:xCe＜3+＞, yTb＜3+＞, wherein 0≤x≤0.1, 0≤y≤0.2, and x and y are not used for representing zero at the same time. The invention also provides a preparation method of the cerium and terbium mono-doped/codoped yttrium sodium phosphate fluorescent powder. According to the preparation method, based on stoichiometric ratio, a corresponding carbonate or an corresponding oxide of Na and Y, an ammonium salt of phosphoric acid, and an oxide or a nitrate of Ce and Tb are uniformly mixed, and are grinded; alcohol or acetone is added for secondary grinding; an obtained mixture is delivered into a corundum crucible, and the corundum crucible is delivered into a high temperature furnace for high-temperature calcination under reducing atmosphere; and an obtained product is cooled and grinded into powder so as to obtain the cerium and terbium mono-doped/codoped yttrium sodium phosphate fluorescent powder. The cerium and terbium mono-doped/codoped yttrium sodium phosphate fluorescent powder is capable of emitting adjustable light from blue to green under ultraviolet excitation; blue light is emitted via mono-doping of Ce3+, green light is emitted via mono-doping of Tb3+, green light is emitted via codoping of Ce3+ and Tb3+, and the intensity of green light obtained via codoping is higher than that of green light obtained via mono-doping of Tb3+. |
| priorityDate | 2015-07-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 43.