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Spin organic light-emitting device and manufacturing method thereof

An electroluminescent device and organic technology, applied in the fields of electric solid state devices, semiconductor/solid state device manufacturing, electrical components, etc., can solve the problem of low luminous efficiency of triplet excitons, and achieve the effect of increasing efficiency

Pending Publication Date: 2020-01-10
CHONGQING NORMAL UNIVERSITY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] Since the transition from the triplet excited state to the ground state is spin-forbidden, the triplet exciton luminescence efficiency of most organic small molecules is relatively low, and the highest efficiency of small molecule OLEDs is limited to 25% (relative to 100% photoluminescence efficiency)

Method used

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  • Spin organic light-emitting device and manufacturing method thereof
  • Spin organic light-emitting device and manufacturing method thereof
  • Spin organic light-emitting device and manufacturing method thereof

Examples

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Embodiment Construction

[0040] The following is a further detailed description through specific embodiments:

[0041] Reference numerals in the drawings include: substrate 1, anode 2, hole buffer layer 3, hole spin polarization injection layer 4, hole transport layer 5, light emitting layer 6, electron transport layer 7, electron self Rotational polarization injection layer 8 , electron buffer layer 9 , cathode 10 .

[0042] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0043] The example is basically as attached figure 1 shown:

[0044]A spin organic electroluminescence de...

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Abstract

The invention discloses a spin organic light-emitting device. The device structurally comprises a substrate, an anode, a hole buffer layer, a hole spin polarization injection layer, a hole transport layer, a light-emitting layer, an electron transport layer, an electron spin polarization injection layer, an electron buffer layer and a cathode in sequence. According to the change of the magnetic field intensity, the light-emitting brightness and the device efficiency are synchronously changed; and the synchronous change effect can be applied to detection of the magnetic field intensity.

Description

technical field [0001] The invention relates to the technical field of organic semiconductor optoelectronics, in particular to a spin organic electroluminescence device, and also to a manufacturing method of the spin organic electroluminescence device. Background technique [0002] Theoretical and experimental research of organic electronics and the development of organic electronics industry are hotspots in the world. In the first year of the 21st century, the Nobel Prize in Chemistry was awarded to Hegel and others for their major contributions to conducting polymers and organic electronics. In the same year, Science magazine also listed the progress made in organic semiconductors as one of the top 10 scientific and technological achievements of the year. In particular, the discovery that the spontaneous spin polarization of injected carriers in organic semiconductors and the regulation of carrier mobility by magnetic fields proves that organic semiconductor carriers have...

Claims

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Application Information

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IPC IPC(8): H01L51/50H01L51/56
CPCH10K30/865H10K50/16H10K50/15H10K50/11H10K2101/10H10K71/00
Inventor 牛连斌关云霞陈丽佳杨明军文林
Owner CHONGQING NORMAL UNIVERSITY