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Transparent organic electroluminescent device and preparation method thereof

A luminescent and electromechanical technology, which is applied in the manufacture of organic semiconductor devices, electric solid devices, semiconductor/solid devices, etc., can solve the problems of large difference in light extraction efficiency and affect the visual effect of transparent organic electroluminescent devices, so as to improve the visual effect effect, reducing the difference in light extraction efficiency, and improving the conductivity

Inactive Publication Date: 2015-04-15
OCEANS KING LIGHTING SCI&TECH CO LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the difference in the refractive index of the cathode and anode materials used in the transparent organic electroluminescent device (TOLED), the result is a large difference in the light extraction efficiency of the two sides, which affects the practical application of the transparent organic electroluminescent device (TOLED). visual effects in

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  • Transparent organic electroluminescent device and preparation method thereof
  • Transparent organic electroluminescent device and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0045] A method for preparing a transparent organic electroluminescent device, comprising the steps of:

[0046] a) Preparation of the anode: Take the glass substrate, wash it with detergent, deionized water, acetone and ethanol in sequence, and use an ultrasonic cleaning machine to clean it. Each washing is performed for 5 minutes and stopped for 5 minutes. Repeat respectively. 3 times, and then dry it in an oven for use; prepare an anode on the treated glass substrate surface, the anode includes a first anode layer and a second anode layer, and first adopts a method of spin coating on the surface of the glass substrate Prepare the first anode layer, and then prepare the second anode layer on the surface of the first anode layer by vacuum evaporation; the material of the first anode layer is (3-mercaptopropyl) trimethoxysilane, the thickness is 4nm, spin The rotating speed of the coating is 2000rpm; the material of the second anode layer is magnesium-aluminum alloy (mass rati...

Embodiment 2

[0054]A method for preparing a transparent organic electroluminescent device, comprising the steps of:

[0055] a) Preparation of the anode: Take the glass substrate, wash it with detergent, deionized water, acetone and ethanol in sequence, and use an ultrasonic cleaning machine to clean it. Each washing is performed for 5 minutes and stopped for 5 minutes. Repeat respectively. 3 times, and then dry it in an oven for use; prepare an anode on the treated glass substrate surface, the anode includes a first anode layer and a second anode layer, and first adopts a method of spin coating on the surface of the glass substrate Prepare the first anode layer, and then prepare the second anode layer on the surface of the first anode layer by vacuum evaporation; the material of the first anode layer is (3-mercaptoethyl) trimethoxysilane, and the thickness is 2nm. The rotation speed of the spin coating is 5000rpm; the material of the second anode layer is lithium-aluminum alloy (mass rati...

Embodiment 3

[0063] A method for preparing a transparent organic electroluminescent device, comprising the steps of:

[0064] a) Preparation of the anode: Take the glass substrate, wash it with detergent, deionized water, acetone and ethanol in sequence, and use an ultrasonic cleaning machine to clean it. Each washing is performed for 5 minutes and stopped for 5 minutes. Repeat respectively. 3 times, and then dry it in an oven for use; prepare an anode on the treated glass substrate surface, the anode includes a first anode layer and a second anode layer, and first adopts a method of spin coating on the surface of the glass substrate Prepare the first anode layer, and then prepare the second anode layer on the surface of the first anode layer by vacuum evaporation; the material of the first anode layer is elemental barium (Ba), the thickness is 20nm, and the vacuum degree of vacuum evaporation used is 1×10 －5 Pa, the evaporation rate is The material of the second anode layer is (3-merca...

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Abstract

The invention discloses a transparent organic electroluminescent device. The transparent organic electroluminescent device comprises a glass substrate, an anode, a cavity implantation layer, a green luminescent layer, an electron injecting layer and a cathode. The anode comprises a first anode layer and a secodn anode layer which are sucessivley laminated on the surface of the glass substrate; the material of the first anode layer comes from at least one of (3-mercaptopropyl)trimethoxysilane, (3-mercaptoethyl)trimethoxysilane, (3-mercaptomethyl) trimethoxysilane and O,O,O-trimethyl-mercaptosilane; the material of the second anode layer comes from at least one of a magnesium-silver alloy, a lithium-aluminum alloy, barium and calcium; and the material of the cathode is indium tin oxide. According to the invention, through arranging an anode layer with a double-layer structure, the light emitting efficiency of an anode surface reaches more than 60% of the light emitting efficiency of a cathode surface, and the visual effect of the transparent organic electroluminescent device in actual application is improved. The invention further discloses a preparation method of a transparent organic electroluminescent device.

Description

technical field [0001] The invention relates to the field of organic electroluminescence, in particular to a transparent organic electroluminescence device and a preparation method thereof. Background technique [0002] Organic electroluminescent device (OLED) is a kind of electric light source. In 1987, C.W.Tang and Van Slyke of Eastman Kodak Company in the United States reported a breakthrough in the research of organic electroluminescence, which enabled the research of organic electroluminescent devices (OLEDs) to be carried out rapidly and widely around the world. stand up. [0003] For the existing organic electroluminescent devices (OLED), according to the different light emitting surfaces, it can be divided into three categories: bottom emitting organic electroluminescent devices (BOLED), top emitting organic electroluminescent devices (TEOLED) and transparent organic electroluminescent devices (TOLEDs). Transparent Organic Electroluminescent Devices [0004] (TOL...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L51/52H01L51/54H01L51/56
CPCH10K50/171H10K50/17H10K50/816H10K2102/00H10K71/00
Inventor 周明杰钟铁涛王平张振华
Owner OCEANS KING LIGHTING SCI&TECH CO LTD
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