Carbazole structure-containing derivative, and preparation method and organic electroluminescent device thereof
What is Al technical title?
Al technical title is built by PatSnap Al team. It summarizes the technical point description of the patent document.
A derivative, carbazole technology, applied in the field of organic optoelectronic materials, can solve the problems of reduced luminous efficiency and inability to improve
Inactive Publication Date: 2018-03-23
CHANGCHUN HYPERIONS TECH CO LTD
View PDF0 Cites 14 Cited by
Summary
Abstract
Description
Claims
Application Information
AI Technical Summary
This helps you quickly interpret patents by identifying the three key elements:
Problems solved by technology
Method used
Benefits of technology
Problems solved by technology
However, since the triplet deactivation dominates in the high-brightness region, the decrease in lumino
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more
Image
Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
Click on the blue label to locate the original text in one second.
Reading with bidirectional positioning of images and text.
Smart Image
Examples
Experimental program
Comparison scheme
Effect test
Embodiment 1
[0047] Preparation of compound TM1
[0048]
[0049] Preparation of 1-3
[0050] Under the protection of nitrogen, compound 1-1 (6.89g, 41.28mmol), 1-2 (11.80g, 41.28mmol), potassium carbonate (4.39g, 31.75mmol), and toluene 200mL were added into a 2L reactor and stirred. The temperature in the reactor was raised to 70°C, and Pd(PPh 3 ) 4 (1.04g, 0.90mmol), stirred with 100mL distilled water, stirred and refluxed for 11h, fully reacted. After adding 70 mL of distilled water to terminate the reaction, filter under reduced pressure, wash the solid with distilled water, and then recrystallize with acetone, toluene, and THF. After the solid is obtained, it is sublimated and recrystallized from toluene to obtain 12.89 g of 1-3 with a yield of 80.89%.
[0051] Preparation of 1-4
[0052] In a 250ml three-neck flask, add 1-3 (12.89g, 41.28mmol), the solvent o-dichlorobenzene, and 200ml triethyl phosphite, and heat the solution to 150°C for 15h. The solvent and excess triethyl...
Embodiment 2
[0062] Preparation of Compound TM7
[0063]
[0064] R in Example 1 1 , R 2 and Ar 1 、Ar 2 The group is replaced by R as indicated above 1 , R 2 and Ar 1 、Ar 2 Group, other steps are the same as in Example 1 to obtain compound TM3. Mass Spectrum m / z: 587.24 (calculated: 587.25).
Embodiment 3
[0066] Preparation of compound TM12
[0067]
[0068] R in Example 1 1 , R 2 and Ar 1 、Ar 2 The group is replaced by R as indicated above 1 , R 2 and Ar 1 、Ar 2 Group, other steps are the same as in Example 1 to obtain compound TM12. Mass Spectrum m / z: 642.21 (calculated: 642.23).
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more
PUM
Login to view more
Abstract
The invention provides a carbazole structure-containing derivative, and a preparation method and an organic electroluminescent device thereof, and belongs to the technical field of organic photoelectric materials. The compound has a structure represented by formula (I), and the R1, R2, Ar1 and Ar2 groups in the asymmetric structure carbazole structure are adjusted to improve the hole mobility andimprove the hole transportation performance, so the luminescence efficiency of the device is improved, and the compound is an organic luminescent material having good performances.
Description
technical field [0001] The invention relates to the technical field of organic photoelectric materials, in particular to a derivative containing a carbazole structure, a preparation method thereof, and an organic electroluminescent device. Background technique [0002] With the progress of the information industry, traditional displays can no longer meet people's requirements, such as: cathode ray tube (CRT) displays have large volume and high driving voltage; liquid crystal displays (liquid crystal display, LCD) have low brightness and narrow viewing angles. , The operating temperature range is small; the plasma display panel (PDP) is expensive, the resolution is not high, and the power consumption is large. [0003] Organic light-emitting diodes (organic light-emitting diodes, OLEDs) as a new display technology has unparalleled advantages in various performances of existing display technologies, such as full solid state, self-luminous, high brightness, high resolution , w...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more
Application Information
Patent Timeline
Application Date:The date an application was filed.
Publication Date:The date a patent or application was officially published.
First Publication Date:The earliest publication date of a patent with the same application number.
Issue Date:Publication date of the patent grant document.
PCT Entry Date:The Entry date of PCT National Phase.
Estimated Expiry Date:The statutory expiry date of a patent right according to the Patent Law, and it is the longest term of protection that the patent right can achieve without the termination of the patent right due to other reasons(Term extension factor has been taken into account ).
Invalid Date:Actual expiry date is based on effective date or publication date of legal transaction data of invalid patent.
Login to view more 
Login to view more