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Electroluminescent device and method for preparing the same

An electroluminescence device, a technology of a light-emitting layer, which is applied in the direction of electroluminescence light source, electric light source, lighting device, etc.

Inactive Publication Date: 2006-07-12
SAMSUNG MOBILE DISPLAY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Converting such organic layer-forming materials into emissive materials is therefore a considerable challenge

Method used

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  • Electroluminescent device and method for preparing the same
  • Electroluminescent device and method for preparing the same
  • Electroluminescent device and method for preparing the same

Examples

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example 1

[0093] For use as the substrate and the first electrode, a glass substrate and ITO (available from Samsung Corning Co., Ltd.; sheet resistance: 15 Ω / cm 2 ; thickness: 1200 Å) was cut into a size of 50 mm × 50 mm × 0.7 mm, washed in isopropanol for 5 minutes and ultrasonically washed in pure water for 5 minutes, and subjected to UV / ozone cleaning for 30 minutes, thereby preparing ITO electrode. A 20 nm thick Au film was formed on the ITO electrode. Au films were patterned by microcontact printing (mCP) and etching, thereby forming multiple stripe-shaped Au nanopatterns on the ITO electrodes. Here, the width of each Au nanopattern is 200 nm, and the interval between two adjacent Au nanopatterns is 300 nm. Microcontact printing (mCP) and etching for forming Au nanopatterns are now described in more detail.

[0094] First, Sylgard 184A and Sylgard 184B (manufactured by Dow Corning Inc.) were mixed at a weight ratio of 10:1 in a mixing vessel to produce a PDMS forming solution. ...

example 2

[0099] For use as the substrate and the first electrode, a glass substrate and ITO (available from Samsung Corning Co., Ltd.; sheet resistance: 15 Ω / cm 2 ; thickness: 1200 Å) was cut into a size of 50mm×50mm×0.7mm, washed in isopropanol for 5 minutes and ultrasonically cleaned in pure water for 5 minutes, and UV / ozone cleaned for 30 minutes. MEH-PPV (poly[2-methoxy-5-(2-ethylhexyloxy)-1,4-phenylene vinylene], poly[ 2-methoxy-5-(2-ethylhexyloxy)-1,4-phenylenevinylene],) made of 70nm thick light-emitting layer. The metal nanopattern-shaped second electrode (cathode) was fabricated by soft-contact lamination in the following manner.

[0100] First, Sylgard 184A and Sylgard 184B (manufactured by Dow Corning Inc.) were mixed at a weight ratio of 10:1 in a mixing vessel to produce a PDMS forming solution. The resulting PDMS forming solution is poured into the wafer forming master. The master has a bar-shaped nanopattern. A vacuum pump is used to remove pores contained in the PDM...

example 3

[0104] For use as the substrate and the first electrode, a glass substrate and ITO (available from Samsung Corning Co., Ltd.; sheet resistance: 15 Ω / cm 2 ; thickness: 1200 Å) was cut into a size of 50 mm×50 mm×0.7 mm, washed in isopropanol for 5 minutes and ultrasonically cleaned in pure water for 5 minutes, and UV / ozone cleaned for 30 minutes. MEH-PPV (poly[2-methoxy-5-(2-ethylhexyloxy)-1,4-phenylenevinylene], poly[2-methoxy-5-(2- Ethylhexyloxy)-1,4-phenylenevinylene]) made a 70nm thick emitting layer. A metal nanopattern-shaped second electrode (cathode) was fabricated using cold welding and soft-contact lamination in the following manner.

[0105] Firstly, Au is deposited on the entire surface of the light emitting layer. Then, Sylgard 184A and Sylgard 184B (manufactured by Dow Corning Inc.) were mixed at a weight ratio of 10:1 in a mixing vessel to produce a PDMS forming solution. Simultaneously, a master in the shape of a nanopattern (stripe) is prepared. A master of ...

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Abstract

An electroluminescent device comprises a substrate, a first electrode, a second electrode, and an organic layer disposed between the first electrode and the second electrode, and including at least a light-emitting layer. A plurality of metal nano patterns are provided on one surface of at least one of the first electrode and the second electrode. A method of preparing the electroluminescent device comprises providing a substrate, first and second electrodes, and an organic layer including a light-emitting layer, with a plurality of metal nano patterns being provided on at least one of the first and second electrodes. The electroluminescent device can achieve emission of polarized light, regardless of the materials used in forming the organic layer.

Description

technical field [0001] The present invention relates to an electroluminescent device and a preparation method thereof, in particular to an electroluminescent device, which is provided with a plurality of metal nanopatterns on one surface of at least one of a first electrode and a second electrode, or provides at least one A first electrode and a second electrode in the shape of a nano pattern, regardless of a material forming an organic layer including at least one light emitting layer, capable of realizing emission of polarized light, and a method of manufacturing the electroluminescent device. Background technique [0002] An electroluminescent device, especially an organic electroluminescent device (organic EL device), is a self-emitting display that emits light through the recombination of electrons and holes in a fluorescent or phosphorescent organic layer when an electric current is applied to the organic layer. Organic EL is light in weight, has simple constituent ele...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L51/50H01L51/52H01L51/56H05B33/26H05B33/10H05B33/02
CPCH01L51/5293H01L51/5203B82Y30/00H10K50/805H10K50/868B02C23/08B02C13/28B02C13/30B02C13/286B02C2013/28618
Inventor 李泰雨金相烈朴钟辰金武谦夫龙淳
Owner SAMSUNG MOBILE DISPLAY CO LTD
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