Unlock instant, AI-driven research and patent intelligence for your innovation.

Anode, preparation method thereof, organic electroluminescence device and preparation method of organic electroluminescence device

An anode and cathode technology, which is applied in the direction of electric solid-state devices, semiconductor/solid-state device manufacturing, electrical components, etc., can solve the problems of limited conductivity, affecting the luminous efficiency of organic electroluminescent devices, and high surface resistance, so as to improve conductivity, The effect of avoiding film defects and high conductivity

Inactive Publication Date: 2014-07-16
OCEANS KING LIGHTING SCI&TECH CO LTD +2
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the immature research on PEDOT / PSS composite materials and their limited conductivity, the anode made of this material also has the problem of high surface resistance, which seriously affects the luminous efficiency of organic electroluminescent devices.

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
  • Anode, preparation method thereof, organic electroluminescence device and preparation method of organic electroluminescence device
  • Anode, preparation method thereof, organic electroluminescence device and preparation method of organic electroluminescence device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0057] A method for preparing an anode, comprising the following steps:

[0058] (1) First, the glass substrate is subjected to photolithography treatment, and then cut into 2×2cm 2 square glass substrate, and then use detergent, deionized water, acetone, ethanol, and isopropanol to sonicate for 15 minutes each to remove organic pollutants on the glass surface, clean and air-dry;

[0059] (2) Mix PEDOT and PSS at a weight ratio of 3:1, then add water to form an aqueous solution with a mass fraction of PEDOT of 4.5%, and then add graphite and polyaniline to the aqueous solution to form a mixed material. Graphite accounts for the mass of the mixed material The fraction is 10%, the mass fraction of polyaniline in the mixed material is 50%, and the molecular weight of polyaniline is 20000. After mixing evenly, the mixed material is spin-coated on the glass substrate, the spin-coating speed is 3000rpm, and the spin-coating time is 20s, and then Dry the spin-coated glass substrate ...

Embodiment 2

[0061] A method for preparing an anode, comprising the following steps:

[0062] (1) First, the glass substrate is subjected to photolithography treatment, and then cut into 2×2cm 2 square glass substrate, and then use detergent, deionized water, acetone, ethanol, and isopropanol to sonicate for 15 minutes each to remove organic pollutants on the glass surface, clean and air-dry;

[0063] (2) Mix PEDOT and PSS at a weight ratio of 6:1, then add water to form an aqueous solution with a mass fraction of PEDOT of 5%, and then add graphite and polyaniline to the aqueous solution to form a mixed material. Graphite accounts for the mass of the mixed material The fraction is 1%, the mass fraction of polyaniline in the mixed material is 60%, and the molecular weight of polyaniline is 50000. After mixing evenly, the mixed material is spin-coated on the glass substrate, the spin-coating speed is 6000rpm, and the spin-coating time is 60s, and then The spin-coated glass substrate was dri...

Embodiment 3

[0065] A method for preparing an anode, comprising the following steps:

[0066] (1) First, the glass substrate is subjected to photolithography treatment, and then cut into 2×2cm 2 Then use detergent, deionized water, acetone, ethanol, and isopropanol to ultrasonically clean the square glass substrate for 15 minutes to remove organic pollutants on the glass surface, clean it and air dry it;

[0067] (2) Mix PEDOT and PSS at a weight ratio of 2:1, then add water to form an aqueous solution with a mass fraction of PEDOT of 1%, and then add graphite and polyaniline to the aqueous solution to form a mixed material. Graphite accounts for the mass of the mixed material The fraction is 20%, the mass fraction of polyaniline in the mixed material is 10%, the molecular weight of polyaniline is 10000, after mixing evenly, the mixed material is spin-coated on the glass substrate, the spin-coating speed is 500rpm, and the spin-coating time is 5s, and then The spin-coated glass substrate ...

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 an anode and a preparation method of the anode. The anode is made of a mixture of graphite, polyaniline, poly(3,4-ethylenedioxythiophene) and poly(styrenesulfonate), the conductivity of the anode is improved, surface resistance of an anode layer is reduced, and the hole injection capacity and the hole transport capacity of the anode are improved. In addition, the invention discloses an organic electroluminescence device containing the anode and a preparation method of the organic electroluminescence device. The organic electroluminescence device comprises a glass substrate, the anode, a hole injection layer, a hole transport layer, a luminous layer, an electron transfer layer, an electron injection layer and a cathode, wherein the glass substrate, the anode, the hole injection layer, the hole transport layer, the luminous layer, the electron transfer layer, the electron injection layer and the cathode are stacked sequentially. The anode is made of the mixture of the graphite, polyaniline, the poly(3,4-ethylenedioxythiophene) and the poly(styrenesulfonate), so that the hole injection capacity and the hole transport capacity of the anode are improved, internal energy consumption is reduced, scattering of light is enhanced, and the luminous efficiency of the device is improved.

Description

technical field [0001] The invention relates to the field of organic electroluminescence, in particular to an anode and a preparation method thereof, an organic electroluminescence device and a preparation method thereof. Background technique [0002] Organic light-emitting devices (Organic light-emitting Devices, referred to as OLEDs) is a multi-layer light-emitting device using organic light-emitting materials. The luminescent principle of OLED is based on the action of an external electric field, electrons are injected from the cathode to the lowest unoccupied molecular orbital (LUMO) of organic matter, and holes are injected from the anode to the highest occupied orbital (HOMO) of organic matter. The light-emitting layers meet, recombine, and form excitons. The excitons migrate under the action of the electric field and transfer energy to the light-emitting material. The excited electrons transition from the ground state to the excited state. The energy in the excited st...

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(China)
IPC IPC(8): H01L51/52H01B1/12H01L51/54H01L51/56
CPCH01B1/127H01B1/128H10K50/81
Inventor 周明杰王平黄辉陈吉星
Owner OCEANS KING LIGHTING SCI&TECH CO LTD