http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-109705845-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B82Y40-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B82Y30-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K11-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B82Y20-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K11-66 |
| filingDate | 2019-02-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2022-04-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2022-04-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-109705845-B |
| titleOfInvention | Low-pollution high-efficiency perovskite quantum dot and preparation method thereof |
| abstract | The invention provides a low-pollution high-efficiency perovskite quantum dot and a preparation method thereof. The invention provides a low-pollution high-efficiency perovskite quantum dot CsPbBr 3 /Cs 4 PbBr 6 And (3) a composite structure. The preparation method of the low-pollution high-efficiency perovskite quantum dot material is characterized in that 1, 9-dibromononane (C) is added 9 H 18 Br 2 ) Supplement Br ion deficiency in reaction solution by increasing Cs + The injection amount of the ions promotes the environmental pollution source Pb in the reaction system 2+ Further consumption of ions, improved synthesis efficiency, and reduced Pb in waste liquid 2+ The content of ions. In the synthesis of large amounts of CsPbBr 3 Due to Cs at the same time of quantum dots + The addition of ions also produces a portion of Cs 4 PbBr 6 Quantum dots of CsPbBr 3 The quantum yield of the quantum dots is improved from 50% to 95%. Thus the method is to realize Pb 2+ The ions are efficiently utilized, the environmental pollution is reduced, and the quantum yield and the stability of the quantum dots are improved. |
| priorityDate | 2019-02-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 33.