| Predicate |
Object |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K2211-1033
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K2211-1029
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K2211-1011 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D265-38
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H10K85-6572
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H10K85-657
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D209-86
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C255-47
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H10K50-11
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H10K85-615
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K11-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H10K85-633 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C253-30
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D265-38
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C255-47
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K11-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01L51-54
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01L51-50
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D209-86 |
| filingDate |
2019-06-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2022-04-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate |
2022-04-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
CN-110240550-B |
| titleOfInvention |
A thermally activated delayed fluorescent material, preparation method and electroluminescent device |
| abstract |
The invention provides an improved thermally activated delayed fluorescent material, a preparation method and a fluorescent device. The electron donor and the electron acceptor in the fluorescent material are connected through a dibenzo eight-membered ring, and are replaced with electron withdrawing groups F and cyano groups. , and then connect different electron-donating units to synthesize a series of blue-light thermally activated delayed fluorescent materials with low single-triplet energy level difference, high luminous efficiency, and fast reverse intersystem crossing constant. The fine-tuning of the structure enables the fine-tuning of the spectrum, realizing the synthesis of TADF materials with ultrafast reverse intersystem crossing rate and high luminous efficiency and its application in light-emitting devices. |
| priorityDate |
2019-06-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |