Cuprous complex orange red phosphorescent material based on benzoxazolyl quinoline

A benzoxazolyl quinoline, phosphorescent material technology, applied in the field of luminescent materials and organic electroluminescent materials, can solve the problems affecting the popularization, application and market performance of OLEDs, the luminous intensity cannot meet the application requirements, and the cost is high. The effect of good phosphorescence emission performance, good solubility and thermal stability, and low production cost

Inactive Publication Date: 2015-09-16
CHINA JILIANG UNIV
3 Cites 11 Cited by

AI-Extracted Technical Summary

Problems solved by technology

[0005] To analyze more specifically, the orange/red phosphorescent materials currently on sale for OLED are complexes of noble metals such as iridium and platinum. Although they have performed well in performance, their expensive prices also affect the final OLED. Product promotion and application and market performance
The use of Cu(I) complexes as orange/re...
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

Abstract

The invention discloses a cuprous complex orange red phosphorescent material based on benzoxazolyl quinoline and a preparation method of the orange red phosphorescent material. A phosphorescent complex is prepared by complexing cuprous salt with a ligand and has a following molecular structure: [Cu(2-QBO)(o-anisyl3P)2]PF6, wherein o-anisyl3P and 2-QBO are respectively an electroneutral phosphine ligand, namely tris(o-methoxyphenyl)phosphine and a neutral heterocyclic ligand, namely 2-(2-benzoxazolyl)quinoline. The phosphorescent complex has the advantages that small molecules are easily purified, the light emitting efficiency is high, and furthermore, the thermal stability is high. The orange red phosphorescent material is prepared by directly mixing and reacting Cu(CH3CN)4PF6 with a dichloromethane solution of the ligands and has the advantages that the process is simple and convenient, equipment is simple, the raw materials are easily available, and the cost is low. The orange red phosphorescent material can be used as a photoluminescent orange red light material and also can be used as a luminescent layer phosphorescent material in an electroluminescent device consisting of multiple layers of organic materials.

Application Domain

Group 5/15 element organic compoundsCopper organic compounds +4

Technology Topic

Image

  • Cuprous complex orange red phosphorescent material based on benzoxazolyl quinoline
  • Cuprous complex orange red phosphorescent material based on benzoxazolyl quinoline
  • Cuprous complex orange red phosphorescent material based on benzoxazolyl quinoline

Examples

  • Experimental program(2)

Example Embodiment

[0032] Example 1
[0033] A large amount of orange-red phosphorescent Cu(I) complex [Cu(2-QBO)(o-anisyl 3 P) 2 ]PF 6 Preparation of microcrystalline samples: Weigh 0.1mmol [Cu(CH 3 CN) 4 ]PF 6 Dissolved in 5mL CH 2 Cl 2 , Then weigh out 0.1mmol of 2-QBO and 0.1mmol of o-anisyl 3 P(tris(o-methoxyphenyl)phosphine), respectively dissolved in 5mL CH 2 Cl 2 In the process, all three solutions are mixed (the molar ratio of the three reactants is 1:1:1), and stirred to make the coordination reaction fully occur, and finally the orange yellow solution is filtered, and all the solvents are removed by rotary evaporation , Dried at 100 degrees to obtain orange crystal powder as the product, the yield is 98% (calculated by Cu).

Example Embodiment

[0034] Example 2
[0035] Synthesis of orange-red phosphorescent Cu(I) complex [Cu(2-QBO)(o-anisyl 3 P) 2 ]PF 6 Single crystal: Weigh 0.1mmol [Cu(CH 3 CN) 4 ]PF 6 Dissolved in 5mL CH 2 Cl 2 , Then weigh out 0.1mmol of 2-QBO and 0.1mmol of o-anisyl 3 P(tris(o-methoxyphenyl)phosphine), respectively dissolved in 5mL CH 2 Cl 2 In the process, all three solutions were mixed and stirred to fully cause the coordination reaction. Finally, the orange yellow solution was filtered, and the filtrate was covered with n-hexane to promote the crystallization of the product. After standing for several days, a large number of orange block crystals were precipitated. An orange crystal with a size of 0.38mm×0.32mm×0.26mm was selected for X-ray single crystal structure test. The molecular structure diagram of the compound is attached figure 1 , Its unit cell stacked structure diagram is attached figure 2.
[0036] To orange-red phosphorescent Cu(I) complex [Cu(2-QBO)(o-anisyl 3 P) 2 ]PF 6 A series of performance tests were carried out on pure phase crystal samples. The steady-state fluorescence test on the material crystal of the present invention shows that the material can emit strong orange-red light under the action of different excitation wavelengths. The color coordinate value is (0.5967, 0.4025). The specific excitation spectrum and emission spectrum are As attached Image 6 And Figure 7 Shown. The transient fluorescence test of this material shows that its luminescence lifetime is 9 microseconds, which belongs to phosphorescence emission. It can be seen that the material can be applied to orange-red phosphorescent materials excited by a variety of wavelengths, and is also very suitable for orange-red phosphorescent materials for OLED light-emitting layers.
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

no PUM

Description & Claims & Application Information

We can also present the details of the Description, Claims and Application information to help users get a comprehensive understanding of the technical details of the patent, such as background art, summary of invention, brief description of drawings, description of embodiments, and other original content. On the other hand, users can also determine the specific scope of protection of the technology through the list of claims; as well as understand the changes in the life cycle of the technology with the presentation of the patent timeline. Login to view more.
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

Similar technology patents

CuIN2P-type red light emitting material with cuprous complexes

InactiveCN104927842AIntersystem crossingSuppression of non-radiative decayCopper organic compoundsSolid-state devicesIodideChemistry
Owner:CHINA JILIANG UNIV

Classification and recommendation of technical efficacy words

  • Suppression of non-radiative decay
  • Intersystem crossing

CuIN2P-type red light emitting material with cuprous complexes

InactiveCN104927842AIntersystem crossingSuppression of non-radiative decayCopper organic compoundsSolid-state devicesIodideChemistry
Owner:CHINA JILIANG UNIV

CuIN2P-type red light emitting material with cuprous complexes

InactiveCN104927842AIntersystem crossingSuppression of non-radiative decayCopper organic compoundsSolid-state devicesIodideChemistry
Owner:CHINA JILIANG UNIV
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