organic electroluminescent element
An electroluminescent element and electroluminescent technology, applied in electroluminescent light sources, electrical components, electrical light sources, etc., can solve the problems of resource exhaustion and high price
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Embodiment 1
[0174]
[0175] Under an argon atmosphere, copper(I) chloride (500 mg, 5.1 mmol) was added to 2,6-lutidine (5 mL), and heated and stirred at 100° C. to obtain a homogeneous solution. The solution was left to cool to room temperature, as a result, colorless crystals precipitated. The crystals were separated by filtration, washed with acetone, and then vacuum-dried at 50° C. for 5 hours to obtain a metal complex ((Cu + ) 1 (2,6-Lutidine) 1 (Cl - ) 1 ) (702 mg, 68% yield).
[0176] Elemental analysis Found (%) C: 40.69, H: 4.30, N: 6.89, Cl: 16.50, Calcd for C 7 h 9 NCuCl (%) C: 40.78, H: 4.40, N: 6.79, Cl: 17.20
[0177] The luminescence peak wavelength (excitation lifetime) of the powder sample is 446nm (4.7μs).
[0178]
[0179] On a glass substrate on which a 150 nm-thick ITO film was formed by sputtering, a solution of poly(ethylenedioxythiophene) / polystyrenesulfonic acid (Bayer, trade name: Baytron P) was used to form a 65 nm thick film by spin coating. Thick f...
Embodiment 2
[0185]
[0186] The synthesis of poly(4-vinyl-2,6-lutidine) was carried out according to the following scheme.
[0187]
[0188] In a 4-neck flask with a capacity of 500 mL replaced with nitrogen, 4-bromo-2,6-lutidine (FOCUS company, 9.80 g, 52.7 mmol), Pd(PPh 3 ) 4 (6.09g, 5.27mmol), dehydrated toluene (260mL), nitrogen bubbling for 15 minutes, tributylvinyltin (20.04g, 63.21mmol) was added, and the temperature was raised to reflux temperature (105-107°C). Under a nitrogen atmosphere, after keeping warm for 17 hours, it was cooled and concentrated by an evaporator to obtain 30.29 g of a black liquid.
[0189] Petroleum ether (100 mL) was added to the obtained liquid, and after filtration with celite, the solvent was evaporated. The residue was purified by silica gel column chromatography (developing solvent: hexane: ethyl acetate = 3:1) to obtain 3.0 g (43%) of 4-vinyl-2,6-lutidine.
[0190] 1 H NMR (400MHz, CDCl 3 ): δ6.95(s, 2H), 6.60(m, 1H), 5.92(d, J=17.6Hz, 1H)...
Embodiment 3
[0207]
[0208] Under argon atmosphere, copper(I) iodide (400mg, 2.1mmol) and 1,2,4,5-tetramethylimidazole (1g, 8.1mmol) were heated in dehydrated acetone (10mL) at 50°C Stir and make a homogeneous solution. The solution was left to cool to room temperature, and colorless crystals precipitated out. The crystals were separated by filtration, washed with acetone, and then vacuum-dried at 50° C. for 5 hours to obtain a metal complex ((Cu + ) 1 (1,2,4,5-Tetramethylimidazole) 2(I - ) 1 ) (674 mg, 73% yield).
[0209] Elemental analysis Found (%) C: 38.54, H: 5.44, N: 12.84, I: 28.17, Cu: 13.3, Calcd for C 14 h 12 N 2 CuI(%)C: 38.32, H: 5.51, N: 12.77, I: 28.92, Cu: 14.5
[0210] The luminescence peak wavelength of the powder sample is 425nm.
[0211]
[0212] An organic electroluminescent element was produced in the same manner as in the production example of the organic electroluminescent element of Example 1, and electroluminescence was obtained by applying a voltage...
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