http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-103589419-B
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_b370b55036df98803f3f918cc625d0e5 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D209-88 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C211-61 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C209-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K11-06 |
| filingDate | 2013-09-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2015-05-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ca80dd807e5256db6f47fb481b43720b http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_496bbd0bcdf6d74992f993e3390b4d46 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_fbec216c2891a3ae5ada2624e3c63f50 |
| publicationDate | 2015-05-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-103589419-B |
| titleOfInvention | Spirobifluorene organic electroluminescence material and preparation method thereof |
| abstract | The invention relates to a spirobifluorene organic electroluminescence material which is characterized in that the concrete structure of the material is shown in a formula (I) described in the specification, wherein R1 and R2 are respectively and independently selected from phenyl, 2-naphthyl, N-phenyl-2-carbazolyl, triarylamino or para-biphenyl. According to the spirobifluorene organic electroluminescence material, an arylamino group is introduced into spirobifluorene, so that the material has better plane structure and conjugated system compared with single spirobifluorene, and the luminous peak position can be adjusted by adjusting electron transition, so that the required light blue organic electroluminescence material is obtained. The material disclosed by the invention has the luminous efficiency of 96 percent in a dilute solution and the luminous efficiency of 60 percent in a film, so that the spirobifluorene compound has high luminous efficiency; the material disclosed by the invention is relatively simple to synthesize and purify and low in cost and can meet the industrial development demands. The yield of the material can be greatly increased, which can reach 90 percent; the purity of the material is high and the HPLC (High Performance Liquid Chromatography) purity is greater than 99 percent. In addition, the prepared material can realize the purpose that the efficiency is remarkably improved, the film-forming performance is remarkably improved and the service life of the material is remarkably prolonged. |
| priorityDate | 2013-09-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 34.