Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Light emitting electrochemical cell and manufacturing method thereof

A light-emitting electrochemical cell and light-emitting layer technology, which is applied to circuits, electrical components, electric solid-state devices, etc., can solve the problems of long response time and low light-emitting brightness of light-emitting electrochemical cells, and achieve the effects of low manufacturing cost and simple process.

Inactive Publication Date: 2017-06-27
KUNSHAN GO VISIONOX OPTO ELECTRONICS CO LTD +1
View PDF2 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Therefore, what the present invention is to solve is the problem of long response time and low luminous brightness in the prior art, thereby providing a light-emitting electrochemical cell with fast response and high brightness and its preparation method

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
  • Light emitting electrochemical cell and manufacturing method thereof
  • Light emitting electrochemical cell and manufacturing method thereof
  • Light emitting electrochemical cell and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] This example provides N^N ligands

[0042] synthetic method.

[0043] (1) The synthesis steps of Pzpy are:

[0044] For details, see He, L., et al. Advanced Functional Materials. 18, 2123-2131 (2008) (He, L., etal. Adv. Funct. Mater. 18, 2123-2131 (2008).):

[0045]

[0046] (2) The synthesis steps of Pyim are:

[0047] For details, see He, L., et al. T Advanced Functional Materials, 19, 2950-2960 (2009) (He, L., etal. Adv. Funct. Mater. 19, 2950-2960 (2009))

[0048]

[0049] (3) The synthesis steps of Ptop are:

[0050]For details, see Zhang, J., et al. Advanced Functional Materials 23, 4667-4677 (2013). (Zhang, J., etal. Adv. Funct. Mater. 23, 4667-4677 (2013))

[0051]

[0052] (4) The synthesis steps of Pop are:

[0053]

Embodiment 2

[0055] The synthesis method of the compound shown in the present embodiment provides formula (1) is:

[0056] Dichloro-bridged diiridium ligand [Ir(dfppy) 2 Cl] 2 (3.100 g, 2.55 mmol) and pzpy ligand (0.743 g, 5.12 mmol) were dissolved in 1,2-ethanediol (60 mL). Under a nitrogen atmosphere, the solution system was refluxed at 140° C. for 12 hours to obtain a clear bright yellow solution. After cooling to room temperature, the Na[B(ArF n ) 4 ] (4.522g, 5.10mmol) was slowly added to the stirring reaction system. The reaction product was filtered with CH 2 Cl 2 Wash and then dry overnight in a vacuum oven at 70°C. The crude product was then chromatographed on a silica gel column (200-300 mesh) using CH 2 Cl 2 As the mobile phase, the formula (1) (5.283 g, 3.34 mmol) was obtained as light yellow powder with a yield of 66%. 1 H-NMR (600MHz, DMSO-d 6 ): δ9.34(d, J=3.1Hz, 1H), 8.55(d, J=8.5Hz, 1H), 8.40-8.36(m, 1H), 8.30(d, J=7.3Hz, 2H), 8.07 (t,J=6.3Hz,2H),7.84(d,J=5.1Hz...

Embodiment 3

[0059] The synthetic method of the compound shown in the present embodiment provides formula (2) is:

[0060] The reactant is [Ir(ppy) 2 Cl] 2 (1.662g, 1.55mmol) and pzpy ligand (0.468g, 3.22mmol), through the same synthetic method as in Example 2, the formula (2) (3.790g, 2.51mmol) of light yellow powder was obtained, and the yield was 81 %. 1H-NMR (600MHz, DMSO-d6): δ9.30(d, J=3.0Hz, 1H), 8.53(d, J=8.5Hz, 1H), 8.35-8.30(m, 1H), 8.26(dd, J=8.0Hz, 3.9Hz, 2H), 7.95(ddd, J=7.7Hz, 3.2Hz, 1.9Hz, 2H), 7.89(dd, J=12.6Hz, 7.8Hz, 2H), 7.77(d, J= 5.7Hz, 1H), 7.71(d, J=5.3Hz, 1H), 7.68(s, 4H), 7.65(d, J=5.6Hz, 1H), 7.61(s, 8H), 7.55-7.51(m, 1H), 7.28(d, J=1.9Hz, 1H), 7.22(t, J=6.7Hz, 1H), 7.18(t, J=6.6Hz, 1H), 7.01(t, J=8.0Hz, 1H) ,6.98(t,J=7.5Hz,1H),6.91-6.87(m,2H),6.84(t,J=7.4Hz,1h),6.19(dd,J=9.6Hz,7.9Hz,2H); 19F -NMR (600MHz, DMSO-d6): δ-61.74 (s, 24F); MS (ESI) [m / z]: [M-B (ArF n ) 4 ]+calcd for C 30 h 23 IrN 5 ,646.16; found, 646.16; [M-Ir(ppy) 2 (pzpy)] - calcd for C ...

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
Thicknessaaaaaaaaaa
Thicknessaaaaaaaaaa
Thicknessaaaaaaaaaa
Login to View More

Abstract

The invention discloses a light emitting electrochemical cell, which comprises a first electrode, a light emitting layer and a second electrode arranged in a laminated mode, wherein the light emitting layer comprises a chemical compound [(C^N)2Ir(N^N)]<+>[B(ArFn)4]<->. Equilibrium ions in [B(ArF6)4]<-> can be recombined under external voltage, ionic conductivity is given to the chemical compound, ionic space charges are thus generated near each electrode, and injection of electron charges is assisted. The chemical compound has bipolar transmission performance, both electrons and charges can be transmitted, transmission of carriers can be realized effectively, and light emitting of the light emitting electrochemical cell is thus realized. The response time of the light emitting electrochemical cell can reach a microsecond level, color coordinates are CIEx,y(0.44, 0.53), the cell is a green light electrochemical cell, the efficiency is as high as 8.6 cd / A, and the highest brightness is 2.2*10<3> cd / m<2>.

Description

technical field [0001] The invention relates to the field of optoelectronics, in particular to a light-emitting electrochemical cell and a preparation method thereof. Background technique [0002] Compared with conventional organic light-emitting diodes (OLEDs) technology, light-emitting electrochemical cells (LECs) have attracted increasing attention in the fields of display and lighting due to their simple structure and fabrication process. The mechanism that distinguishes LECs from OLEDs is that freely moving ions play a leading role in luminescence; while OLEDs play a leading role in the directional movement of carriers of different polarities. Compared with OLEDs, LECs have the characteristics of ion mobility, lower turn-on voltage, simpler device structure, and the use of air-stable metals as electrodes. [0003] In recent years, ionic transition metal complexes (iTMCs) have attracted much attention due to their application in light-emitting electrochemical cells. In...

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
IPC IPC(8): H01L51/54H01L51/56H01L51/50
CPCH10K50/135H10K71/00
Inventor 段炼马冬昕刘嵩赵菲
Owner KUNSHAN GO VISIONOX OPTO ELECTRONICS CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com