Thulium-holmium co-doped chlorosilicate upconversion light-emitting fluorescent powder as well as preparation method thereof and organic light-emitting diode

A chlorosilicate, phosphor technology, used in luminescent materials, chemical instruments and methods, semiconductor/solid-state device manufacturing, etc.
CN104673284AInactive Publication Date: 2015-06-03OCEANS KING LIGHTING SCI&TECH CO LTD +2
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
OCEANS KING LIGHTING SCI&TECH CO LTD
Publication Date
2015-06-03
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to thulium-holmium co-doped chlorosilicate upconversion light-emitting fluorescent powder as well as a preparation method thereof and an organic light-emitting diode. A chemical formula of the fluorescent powder is R2SiCl6:xTm<3+>, yHo<3+>, wherein R2SiCl6 is a doped matrix, Tm and Ho are doped elements, x ranges from 0.002 to 0.06, y ranges from 0.002 to 0.04; and R is lithium, sodium, potassium, rubidium or cesium. The thulium-holmium co-doped chlorosilicate upconversion light-emitting fluorescent powder disclosed by the invention can realize excite blue-light shot-wave light due to infrared-green long-wave radiation, so that part of red green light in the organic light-emitting diode is converted into blue light, and the rest of the red green light is synthesized into white light, and thus, preparation of a white-light lighting product is realized.
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Description

technical field

[0001] The invention relates to the technical field of semiconductor optoelectronic materials, in particular to a thulium-holmium co-doped chlorosilicate up-conversion luminescent phosphor, a preparation method thereof, and an organic light-emitting diode. Background technique

[0002] The full name of OLED is Organic Light Emitting Diode, organic light emitting diode. It has many advantages. Its component structure is simple, its production cost is cheap, and its self-luminous characteristics, coupled with OLED's short response time and bendable characteristics, make it a very wide range of applications. However, it is difficult to obtain stable and efficient OLED blue light materials, which greatly limits the development of white light OLED devices and light source industries.

[0003] Up-conversion fluorescent materials can emit visible light and even ultraviolet light under the excitation of long-wave (such as infrared) radiation, and have broad applicat...

Claims

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