http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-110903236-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K2211-1007 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K2211-1029 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K11-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H10K85-6572 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H10K50-11 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D209-86 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D209-86 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K11-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01L51-50 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01L51-54 |
| filingDate | 2019-12-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2022-11-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2022-11-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-110903236-B |
| titleOfInvention | A kind of dark blue electroluminescent material and its preparation method and application |
| abstract | The invention discloses a dark blue electroluminescent material which utilizes an electroexcitating compound to achieve an external quantum efficiency of 18.1%, and its preparation method and application. Starting from 2,4,6-tribromobenzonitrile, a one-step Suzuki reaction is carried out Introduction of the carbazole unit affords the target compound. The present invention utilizes the electroexcitating complex in the non-doped organic light-emitting diode for the first time, so that the external quantum efficiency of the non-doped blue organic light-emitting diode reaches 18.1%. At the same time, the compound of the present invention can be used as the host material of the orange-light organic light-emitting diode, and has excellent performance. The emission color coordinates are located at (0.49,0.51), the current efficiency is 84.6cd/A, and the external quantum efficiency is 27.4%. |
| priorityDate | 2019-12-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 57.