Organic electroluminescent compound and organic electroluminescent device comprising the same
An electroluminescent device and compound technology, applied in organic chemistry, luminescent materials, circuits, etc., can solve the problems of high driving voltage, short operating life, poor thermal stability, etc., and achieve the effect of high luminous efficiency and low driving voltage
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
example 1
[0114] [Example 1] Synthesis of Compound C-1
[0115]
[0116] 1. Synthesis of compound A-2
[0117] Compound A-1 (85g, 0.359mol), bis(pinacolate) diboron (100g, 0.394mol), and (1,1'-bis(diphenylphosphino)ferrocene)dichloropalladium (II)(PdCl 2 (dppf)) (7.87 g, 0.0108 mol) was added to the flask and dissolved in potassium acetate (106 g, 1.08 mol) and 1.8 L of 1,4-dioxane, and then refluxed for 24 hours. After the reaction was completed, the organic layer was extracted with ethyl acetate, and dried over magnesium sulfate. Next, it was separated by column chromatography to obtain compound A-2 (86 g, yield: 84%).
[0118] 2. Synthesis of Compound A-3
[0119] Compound A-2 (15g, 0.0528mol), 2-bromo-1-fluoro-3-nitrobenzene (23.2g, 0.106mol), tripotassium phosphate (K 3 PO 4 ) (33.6 g, 0.158 mol), palladium acetate (1.19 g, 0.00528 mol), and Xantphos (6.11 g, 0.0106 mol) were added to the flask and dissolved in tetrahydrofuran, and then refluxed for 24 hours. After the...
example 2
[0129] [Example 2] Synthesis of Compound C-3
[0130]
[0131] Compound A-6 (2.3 g, 0.00995 mol), Compound D (3.86 g, 0.00995 mol), copper(II) sulfate (0.794 g, 0.00497 mol), and potassium carbonate (2.75 g, 0.0199 mol) were added to the flask , and dissolved in 66.3 mL of o-dichlorobenzene, and then refluxed for 24 hours. After the reaction was completed, the solvent was removed by distillation, and dissolved in ethyl acetate. The organic layer was separated and dried over magnesium sulfate. Next, it was separated by column chromatography to obtain compound C-3 (2.2 g, yield: 41.1%).
[0132] MW Tg M.P. Example 2 538.61 82.57 200.3
[0133] Hereinafter, light emission characteristics of an organic electroluminescent device including the organic electroluminescent compound of the present disclosure will be explained for a detailed understanding of the present disclosure.
example 1 and 2
[0134] [Device Examples 1 and 2] Preparation of OLEDs Comprising Host Compounds According to the Present Disclosure
[0135] OLEDs according to the present disclosure were produced. First, a transparent electrode indium tin oxide (ITO) film (10Ω / sq) (GEOMATEC CO., LTD., Japan) on a glass substrate for an OLED was subjected to sequential treatment with acetone and isopropanol. Sonicated and thereafter stored in isopropanol and then used. Next, the ITO substrate was mounted on the substrate holder of the vacuum vapor deposition equipment. Compound HI-1 was introduced into one chamber of the vacuum vapor deposition apparatus, and compound HT-1 was then introduced into the other chamber of the vacuum vapor deposition apparatus. The two materials were respectively evaporated at different rates and deposited with a doping amount of 3 wt % to form a hole injection layer with a thickness of 10 nm on the ITO substrate. Next, compound HT-1 was introduced into a chamber of a vacuum va...
PUM
| Property | Measurement | Unit |
|---|---|---|
| thickness | aaaaa | aaaaa |
| thickness | aaaaa | aaaaa |
| thickness | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More