Method for synthesizing anthracene derivative and anthracene derivative, light emitting element, light emitting device, electronic device

a technology of anthracene and derivative, which is applied in the direction of discharge tube luminescnet screen, natural mineral layered product, organic semiconductor device, etc., can solve the problems of long time period for synthesis, difficult to obtain character, and inability to yield favorable results, etc., to achieve excellent blue color purity, high color purity, and large band gap

Inactive Publication Date: 2008-05-08
SEMICON ENERGY LAB CO LTD
View PDF31 Cites 37 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0031] Further, a light-emitting material having a smaller band gap than the anthracene derivative of the present invention (hereinafter, referred to as dopant) is added to a layer including the anthracene derivative of the present invention, whereby light can be obtained from the dopant. At this time, since the anthracene derivative of the present invention has an extremely large band gap, light that is not from the anthracene derivative of the present invention but from the dopant can be efficiently obtained even if dopant emitting light with relatively short wavelength is used. Specifically, by using a light-emitting material as dopant, which has emission maximum in around 450 nm of the wavelength and shows an excellent blue color purity, a light-emitting element that can obtain blue light with a high color purity can be obtained.
[0032] When a light-emitting element is manufactured, in which the anthracene derivative of the present invention is added to a layer including a material having a larger band gap than the anthracene derivative (hereinafter, refereed to as host), light from the anthracene derivative of the present invention can be obtained. In other words, the anthracene derivative of the present invention serves as dopant. At this time, since the anthracene derivative has an extremely large band gap and exhibits light with the short wavelength, a light-emitting element that can obtain blue light with a high color purity can be manufactured.
[0033] When a light-emitting material of the present invention including the anthracene derivative is used, a light-emitting element that provides an excellent color purity as blue color can be obtained. Further, when the light-emitting material of the present invention including the anthracene derivative is used, a highly reliable light-emitting element can be obtained.
[0034] A light-emitting element of the present invention including the above anthracene derivative is a light-emitting element that can provide an excellent color purity as blue light. Further, the light-emitting element of the present invention including the above anthracene derivative is a highly reliable light-emitting element.
[0035] A light-emitting device of the present invention including the light-emitting element is a light-emitting device with high color reproducibility. Further, the light-emitting device of the present invention including the light-emitting element is a highly reliable light-emitting device.
[0036] An electronic device of the present invention including the light-emitting element is an electronic device with high color reproducibility. Further, the electronic device of the present invention including the light-emitting element is a highly reliable electronic device.

Problems solved by technology

This characteristic is difficult to be obtained by a point light source typified by an incandescent lamp or an LED, or a line light source typified by a fluorescent lamp.
Therefore, the yield is not favorable and a long time period for synthesis is needed.

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
  • Method for synthesizing anthracene derivative and anthracene derivative, light emitting element, light emitting device, electronic device
  • Method for synthesizing anthracene derivative and anthracene derivative, light emitting element, light emitting device, electronic device
  • Method for synthesizing anthracene derivative and anthracene derivative, light emitting element, light emitting device, electronic device

Examples

Experimental program
Comparison scheme
Effect test

embodiment mode 1

[0103] In this embodiment mode, a method for synthesizing an anthracene derivative of the present invention will be described.

[0104] In a method for synthesizing an anthracene derivative of the present invention, a 9-arylanthracene derivative having an active site at a 10-position is coupled with a 9-arylcarbazole derivative having an active site in an aryl group using metal, a metal compound, or a metal catalyst, so that an anthracene derivative represented by a general formula (1) is synthesized.

[0105] More specifically, a 9-arylanthracene derivative having an aryl group Ar1 at a 9-position and an active site at a 10-position is coupled with a 9-arylcarbazole derivative having an aryl group Ar2 at a 9-position and an active site at the aryl group Ar2 using metal, a metal compound, or a metal catalyst, so that an anthracene derivative represented by the general formula (1) is synthesized.

[0106] That is, an anthracene derivative represented by a general formula (2) is coupled wi...

embodiment mode 2

[0138] In this embodiment mode, an anthracene derivative of the present invention will be described.

[0139] An anthracene derivative of the present invention is an anthracene derivative represented by a general formula (1).

[0140] The anthracene derivative represented by the general formula (1) has an anthracene skeleton to which an aryl group is introduced as a substituent at 9- and 10-positions.

[0141] In general, since a blue light-emitting material with high color purity has low electrochemical stability and low stability in an excited state, a light-emitting element using the blue light-emitting material has difficulty in having long lifetime. Accordingly, electrochemical stability and stability in an excited state of a blue light-emitting material with high color purity is needed for improvement in reliability of the light-emitting element using the blue light-emitting material. Moreover, in the light-emitting element and in a light-emitting device and an electronic device th...

embodiment mode 3

[0153] In this embodiment mode, a mode of a light-emitting element using an anthracene derivative of the present invention will be described with reference to FIGS. 1A to 1C and FIG. 2.

[0154] A light-emitting element of the present invention has a plurality of layers between a pair of electrodes. The plurality of layers are stacked by combining layers formed from a substance with a high carrier injecting property or a substance with a high carrier transporting property, so that a light-emitting region is formed in a place separated from the electrodes, in other words, carriers are recombined in a portion separated from the electrodes. In the present specification, a plurality of layers formed between a pair of electrodes is hereinafter, referred to as an EL layer.

[0155] In this embodiment mode, a light-emitting element includes a first electrode 102, a first layer 103, a second layer 104, a third layer 105, a fourth layer 106, and a second electrode 107, which are sequentially sta...

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

PropertyMeasurementUnit
work functionaaaaaaaaaa
work functionaaaaaaaaaa
emission wavelengthaaaaaaaaaa
Login to view more

Abstract

It is an object to provide a novel method for synthesizing an anthracene derivative with the small number of steps. It is another object to provide a novel anthracene derivative. It is further another object to provide a light-emitting element, a light-emitting device, and an electronic device, each using the anthracene derivative. A method for synthesizing an anthracene derivative represented by a general formula (1) is provided by coupling a 9-arylanthracene derivative having an active site at a 10-position with a 9-arylcarbazole derivative having an active site in an aryl group using metal, a metal compound, or a metal catalyst.

Description

TECHNICAL FIELD [0001] The present invention relates to a method for synthesizing an anthracene derivative. The present invention also relates to an anthracene derivative. Further, the present invention relates to a current-excitation light-emitting element, and a light-emitting device and an electronic device each having the light-emitting element. BACKGROUND ART [0002] In recent years, research and development have been extensively conducted on light-emitting elements using electroluminescence. As a basic structure of these light-emitting elements, a structure where a substance having a light-emitting property is interposed between a pair of electrodes is used. By application of a voltage to this element, light emission from a substance having a light-emitting property can be obtained. [0003] Since such a light-emitting element is a self-luminous element, there are advantages such as higher visibility of a pixel than visibility of a liquid crystal display, and unnecessity of a bac...

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
no application Login to view more
Patent Type & Authority Applications(United States)
IPC IPC(8): H01J1/62C07D209/86
CPCC07D209/86C09K11/06C09K2211/1011C09K2211/1029H01L51/0052H05B33/14H01L51/0061H01L51/0072H01L51/0081H01L2251/308H01L51/0058H10K85/636H10K85/626H10K85/615H10K85/324H10K85/6572H10K2102/103
Inventor EGAWA, MASAKAZUKAWAKAMI, SACHIKO
Owner SEMICON ENERGY LAB CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap