QLED containing noble metal nanomaterial and preparation method of QLED

A nanomaterial and precious metal technology, applied in the fields of organic semiconductor devices, semiconductor/solid-state device manufacturing, electrical components, etc., can solve problems such as affecting luminous efficiency, non-radiative recombination of electrons and holes, affecting LSRP enhancement effect, etc., and the method is simple. easy-to-control effects
CN106784348AInactive Publication Date: 2017-05-31TCL CORPORATION
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
TCL CORPORATION
Publication Date
2017-05-31
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention provides a QLED containing a noble metal nanomaterial. The QLED comprises an anode, a hole injection layer, a hole transport layer, a quantum dot light-emitting layer, an electron transport layer, an electron injection layer and a cathode which are sequentially stacked, wherein the QLED contains the noble metal nanomaterial; the noble metal nanomaterial is a nano noble metal core-shell structure composite material and comprises a noble metal core and a shell layer structure coating the noble metal core; and at least one of the hole injection layer, the hole transport layer, the quantum dot light-emitting layer, the electron transport layer and the electron injection layer is doped with the nano noble metal core-shell structure composite material; or the nano noble metal core-shell structure composite material is arranged between any two adjacent layers of structures of the hole injection layer, the hole transport layer, the quantum dot light-emitting layer, the electron transport layer and the electron injection layer as a nano noble metal core-shell layer.
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Description

technical field

[0001] The invention belongs to the field of flat panel display technology, and in particular relates to a QLED containing noble metal nanomaterials and a preparation method thereof. Background technique

[0002] Quantum dots have the advantages of narrow luminescence peak and high quantum yield, and can be prepared by printing process, so quantum dot-based light-emitting diodes (ie, quantum dot light-emitting diodes: QLED) have recently received widespread attention, and their device performance indicators have also developed. fast. In order to improve the luminous efficiency of quantum dots, usually doped noble metal nanoparticles in the hole injection layer of QLED devices or spin-coat a layer of nanoparticles on the hole injection layer, using the localized surface plasmon resonance (LSPR) of noble metal nanoparticles ) to enhance the luminous efficiency of quantum dots. When the metal nanoparticles are formed into a film, the nanoparticles will be very...

Claims

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