Heterocyclic organic electroluminescent material and preparation method, application and device thereof

A luminescent and electromechanical technology, applied in luminescent materials, electrical solid devices, organic chemistry, etc., can solve the problems of current efficiency, light color and life comprehensive performance not meeting industry standards, and achieve excellent light color and life, and luminous efficiency High, good thermal stability

Active Publication Date: 2021-04-20
WUHAN SUNSHINE OPTOELECTRONICS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, up to now, the comprehensive properties of boron-containing organic electroluminescent materials designed in the field of optoelectronic materials in terms of current efficiency, light color and lifetime do not meet industry standards. Therefore, there is no boron-containing organic electroluminescent material available for commercial applications. Heterocyclic Organic Electroluminescent Materials

Method used

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  • Heterocyclic organic electroluminescent material and preparation method, application and device thereof
  • Heterocyclic organic electroluminescent material and preparation method, application and device thereof
  • Heterocyclic organic electroluminescent material and preparation method, application and device thereof

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Embodiment Construction

[0074] Embodiments of the present invention are described in detail below. The embodiments described below are exemplary only for explaining the present invention and should not be construed as limiting the present invention. If no specific technique or condition is indicated in the examples, it shall be carried out according to the technique or condition described in the literature in this field or according to the product specification. All reagents and instruments used are commercially available conventional products.

[0075] Synthesis Example 1: Synthesis of Compound (1)

[0076]

[0077] Step 1: Add 5.52 g (40 mmol) of potassium carbonate and 100 mL of xylene into a reaction flask containing 4.74 g (20 mmol) of 2,4-dichlorodibenzofuran and 8.36 g (50 mmol) of carbazole. Introduce nitrogen, add cuprous iodide 0.38g (2mmol) and o-phenanthroline 0.72g (4mmol), heat and reflux and stir for 8h. The temperature was cooled to room temperature, filtered, the liquid phase w...

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Abstract

The invention discloses a heterocyclic organic electroluminescent material and a preparation method, application and a device thereof. Through fine regulation and design of heteroatoms in the heterocyclic parent nucleus, a heterocyclic core with a wide band gap, balanced electrons/holes and a stable structure is constructed, the design requirement of dark blue light color is met, the carrier recombination luminous efficiency is high, the thermal stability is good, and compared with a boron-containing heterocyclic compound in the prior art, the material has more excellent performance in starting voltage, current efficiency, light color and service life, and is an ideal dark blue light emitting material.

Description

technical field [0001] The invention relates to the field of optoelectronic materials, in particular, the invention relates to a heterocyclic organic electroluminescent material and its preparation method, application and device. Background technique [0002] Organic light-emitting diode (OLED) has become one of the most promising new display technologies due to its advantages of self-luminescence, low driving voltage, high contrast, and wide viewing angle. Through the unremitting efforts of scientific research workers and enterprise research and development, organic electroluminescence technology has initially entered the stage of industrialization. Compared with red light and green light materials, blue light materials have high energy, and can be used to prepare full-emitting organic electroluminescent devices through energy transfer to low-energy organic light-emitting materials such as green light, yellow light, and red light. White light OLEDs prepared based on non-do...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07F5/02C09K11/06H01L51/54H01L51/50
Inventor 穆广园庄少卿任春婷徐鹏
Owner WUHAN SUNSHINE OPTOELECTRONICS TECH CO LTD
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