Nanocrystal electroluminescence device and fabrication method thereof

a technology of electroluminescence device and nanocrystal, which is applied in the direction of luminescent composition, thermoelectric device, chemistry apparatus and processes, etc., can solve the problems of low color purity, difficult control of nanocrystal layer thickness and hole transport layer, etc., and achieve the effect of increasing the color purity of the electroluminescence devi
US20050274944A1Inactive Publication Date: 2005-12-15SAMSUNG ELECTRONICS CO LTD
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Patent Information

Authority / Receiving Office
US · United States
Patent Type
Applications(United States)
Current Assignee / Owner
SAMSUNG ELECTRONICS CO LTD
Publication Date
2005-12-15
Estimated Expiration
Not applicable · inactive patent

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Abstract

A nanocrystal electroluminescence device comprising a polymer hole transport layer, a nanocrystal light-emitting layer and an organic electron transport layer wherein the nanocrystal light-emitting layer is independently and separately formed between the polymer hole transport layer and the organic electron transport layer. According to the nanocrystal electroluminescence device, since the hole transport layer, the nanocrystal light-emitting layer and the electron transport layer are completely separated from one another, the electroluminescence device provides a pure nanocrystal luminescence spectrum having limited luminescence from other organic layers and substantially no influence by operational conditions, such as voltage. Further, a method for fabricating the nanocrystal electroluminescence device.
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Description

BACKGROUND OF THE INVENTION

[0001] This non-provisional application claims priority under 35 U.S.C. 119(a) on Korean Patent Application No. 42200 filed on Jun. 9, 2004 which is herein expressly incorporated by reference.

[0002] 1. Field of the Invention

[0003] The present invention relates to an electroluminescence device, and a method for fabricating the electroluminescence device. More particularly, the present invention relates to a nanocrystal electroluminescence device comprising a polymer hole transport layer, a nanocrystal light-emitting layer and an organic electron transport layer wherein the nanocrystal light-emitting layer is independently and separately formed between the polymer hole transport layer and the organic electron transport layer, and a method for fabricating the nanocrystal electroluminescence device.

[0004] 2. Description of the Related Art

[0005] A nanocrystal is defined as a material having a crystal structure at the nanometer-scale level, and consists of ...

Claims

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