Organic metal complex and organic light-emitting device thereof

An organometallic and complex technology, applied in indium organic compounds, platinum group organic compounds, electric solid devices, etc., can solve problems such as the inability to provide satisfactory luminescence characteristics, and achieve improved glass transition temperature and thermal stability, The effect of high luminous brightness and long service life

Inactive Publication Date: 2018-11-27
CHANGCHUN HYPERIONS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For the light-emitting layer, the traditionally used guest-doped materials usually cannot provide satisfactory light-emitting characteristics. Therefore, it is still necessary to design new guest-doped materials with better performance to improve the performance of organic electroluminescent devices.

Method used

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  • Organic metal complex and organic light-emitting device thereof
  • Organic metal complex and organic light-emitting device thereof
  • Organic metal complex and organic light-emitting device thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0089] Embodiment 1: the preparation of compound TM1

[0090]

[0091]

[0092] Under argon protection, compound C1 (2.36g, 20mmol), compound D1 (9.24g, 44mmol), potassium carbonate (5.5g, 40mmol), bis(tri-tert-butylphosphine) palladium (20.4 g, 0.04mmol), toluene (200ml), stirred under reflux for 5 hours, cooled to room temperature, extracted with toluene, washed with water, dried over anhydrous sodium sulfate, and purified by column chromatography to obtain intermediate A1 (3.1g, 62%) .

[0093] Under the protection of nitrogen, intermediate A1 (3.0g, 12mmol), iridium trichloride trihydrate (1.76g, 5mmol), and purified water (5ml) were successively added to the flask, and refluxed at 150°C for 12 hours to stop the reaction. 150 ml of distilled water was added to precipitate a precipitate, the reaction mixture was filtered, the filter cake was washed with absolute ethanol, and dried to obtain intermediate B1.

[0094] Add compound E1 (62.8mg, 0.4mmol) and n-hexane (10...

Embodiment 2

[0095] Embodiment 2: the preparation of compound TM11

[0096] Compound D1 in Example 1 was replaced by equimolar compound D2, and other steps were the same as in Example 1 to obtain compound TM11 (262 mg, 65%). Mass spectrum m / z: theoretical value: 1011.25; found value: 1013.52. Theoretical element content (%)C 55 h 46 IrN 8 : C, 65.33; H, 4.59; Ir, 19.01; N, 11.08; Measured element content (%): C, 65.31; H, 4.65; Ir, 19.00; N, 11.05. The above results confirmed that the obtained product was the target product.

[0097]

Embodiment 3

[0098] Embodiment 3: the preparation of compound TM16

[0099] Compound D1 in Example 1 was replaced by equimolar compound D3, compound F1 was replaced by equimolar compound F2, and other steps were the same as in Example 1 to obtain compound TM16 (298 mg, 62%). Mass spectrum m / z: theoretical value: 1203.59; found value: 1205.73. Theoretical element content (%)C 69 h 70 IrN 8 : C, 68.86; H, 5.86; Ir, 15.97; N, 9.31; Measured element content (%): C, 68.83; H, 5.92; Ir, 15.95; N, 9.30. The above results confirmed that the obtained product was the target product.

[0100]

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Abstract

The invention discloses an organic metal complex and an organic light-emitting device thereof and relates to the technical field of organic optoelectronic materials. A first ligand and an auxiliary ligand in a structural formula I of the organic metal complex can more effectively stabilize central metallic atoms; a quinary ring configuration and a tetratomic ring configuration respectively formedby metallic atoms with the first ligand and the second ligand can make the organic metal complex have a more rigid structure, so that high-performance and high-efficiency phosphorescence emission canbe realized; due to the introduction of large-volume substituent groups, the glass transition temperature and the heat stability of the organic metal complex are effectively promoted and the film formation of the material is benefited; the organic light-emitting device disclosed by the invention comprises a cathode, an anode and one or more organic matter layer; at least one organic matter layer contains the organic metal complex disclosed by the invention; the organic light-emitting device disclosed by the invention has lower driving voltage, high luminous efficiency and luminance, and longerservice life.

Description

technical field [0001] The invention relates to the technical field of organic photoelectric materials, in particular to an organic metal complex and an organic electroluminescent device. Background technique [0002] As a key material in OLED devices, organic light-emitting materials can be roughly divided into three categories according to the principle of light emission: traditional fluorescent materials, phosphorescent materials and thermally activated delayed fluorescence (TADF) materials. Traditional fluorescent materials can only use 25% of singlet excitons to emit light, and the luminous efficiency is low. Phosphorescent materials can use 25% singlet excitons and 75% triplet excitons to radiate and emit light, which can theoretically achieve 100% internal quantum efficiency. In 1998, M.A.Baldo et al. doped transition metal platinum in the light emitting layer The organic chelating molecule PtOEt prepared a saturated red phosphorescent OLED device with an external qu...

Claims

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Application Information

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IPC IPC(8): C07F15/00C09K11/06H01L51/50H01L51/54
CPCC09K11/06C07F15/0033C09K2211/185H10K85/342H10K50/11H10K2101/10
Inventor 韩春雪孙敬
Owner CHANGCHUN HYPERIONS TECH CO LTD
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