http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-112877064-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B82Y40-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K11-665 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K11-66 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B82Y40-00 |
| filingDate | 2021-01-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2021-11-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2021-11-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-112877064-B |
| titleOfInvention | Preparation method of pure Cs4PbBr6 perovskite quantum dot and product thereof |
| abstract | The invention discloses a preparation method of pure Cs4PbBr6 perovskite quantum dots and a product thereof, wherein the preparation method comprises the following steps: 1) preparing a precursor solution; 2) of ionic solutionsConfiguring; 3) preparation of pure Cs 4 PbBr 6 Perovskite quantum dots: adding the cesium bromide solution and the lead bromide solution in the step 2) into the precursor solution in the step 1), stirring and reacting at room temperature, and after the reaction is finished, performing centrifugal separation to obtain primary Cs 4 PbBr 6 Perovskite quantum dots; 4) purifying to obtain pure Cs 4 PbBr 6 Perovskite quantum dots. The preparation method of the invention introduces a small amount of water in the preparation process, so that the luminous performance and stability of the preparation method are greatly improved, and the prepared Cs 4 PbBr 6 The perovskite quantum dots can emit green light under the excitation of near ultraviolet and blue light, and the quantum life reaches the microsecond level. The invention adopts the ligand to assist the Cs prepared by the reprecipitation method 4 PbBr 6 The perovskite quantum dot can be effectively excited by near ultraviolet, and has the advantages of high emission intensity, uniform phase, good thermal stability, long quantum life and the like. |
| priorityDate | 2021-01-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 34.