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Organic electroluminescence device capable of simulating sunlight and preparation method thereof

A technology of luminescence and sunlight, which is applied in the field of organic electroluminescent devices simulating sunlight and its preparation, can solve the problems of increased preparation process requirements, repeatability effects, and complicated device structures, and achieve low preparation process requirements, The effect of simple process and simple structure

Active Publication Date: 2016-03-30
FIFTH ELECTRONICS RES INST OF MINIST OF IND & INFORMATION TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, these devices are prepared by doping technology, which undoubtedly complicates the structure of the device and greatly increases the requirements for the preparation process.
Moreover, due to the strict and precise control of the concentration of the guest in the doping technology, the repeatability of the reported OLEDs with solar CCT characteristics will be greatly affected.

Method used

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  • Organic electroluminescence device capable of simulating sunlight and preparation method thereof
  • Organic electroluminescence device capable of simulating sunlight and preparation method thereof
  • Organic electroluminescence device capable of simulating sunlight and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0099] An organic electroluminescence device A for simulating sunlight, the structure of the device A is: ITO / HAT-CN(100nm) / NPB(15nm) / TAPC(5nm) / Ir(piq) 3 (0.5nm) / TAPC(1.5nm) / Ir(dmppy) 2 (dpp)(0.9nm) / TAPC(3.5nm) / DSA-ph(0.5nm) / TmPyPB(35nm) / LiF(1nm) / Al(200nm).

[0100] Such as Figure 4 As shown, the structure of the device A is sequentially stacked by the following functional layers:

[0101] Substrate, anode, hole injection layer, hole transport layer, red phosphorescent layer, phosphorescent spacer layer, yellow phosphorescent layer, spacer layer, blue fluorescent layer, electron transport layer, electron injection layer, cathode.

[0102] The aforementioned substrate is glass.

[0103] The above-mentioned anode is an ITO thin film.

[0104] The above-mentioned hole injection layer is a 100 nm thick HAT-CN thin film.

[0105] The above-mentioned hole transport layer includes a hole transport layer 1 and a hole transport layer 2 laminated in sequence, the hole transport la...

Embodiment 2

[0130] An organic electroluminescence device simulating sunlight, the organic electroluminescence device B, the structure of the device B is: ITO / HAT-CN(100nm) / NPB(15nm) / TAPC(5nm) / Ir(piq) 3 (0.2nm) / Ir(ppy) 3 (0.5nm) / TAPC(3.5nm) / DSA-ph(0.5nm) / TmPyPB(35nm) / LiF(1nm) / Al(200nm).

[0131] Such as Figure 6 As shown, the structure of the device B is sequentially stacked by the following functional layers:

[0132] Substrate, anode, hole injection layer, hole transport layer, red phosphorescent layer, green phosphorescent layer, spacer layer, blue fluorescent layer, electron transport layer, electron injection layer, cathode.

[0133] The aforementioned substrate is glass.

[0134] The above-mentioned anode is an ITO thin film.

[0135] The above hole injection layer is a 60nm thick HAT-CN thin film.

[0136] The above-mentioned hole transport layer includes a hole transport layer 1 and a hole transport layer 2 laminated in sequence, the hole transport layer 1 is a NPB film with ...

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Abstract

The invention relates to an organic electroluminescence device capable of simulating sunlight and a preparation method thereof, belonging to the technical field of electroluminescence devices. The device comprises a substrate, an anode, a cathode and an organic function layer arranged between the anode and the cathode, wherein the organic function layer comprises a blue fluorescent layer, a phosphor coating and a spacer layer, wherein the blue fluorescent layer and the phosphor coating are separated by the spacer layer; the blue fluorescent layer is made of a non-doped luminescent material with the light-emitting wavelength of smaller than 500nm; the phosphor coating comprises a red phosphor coating, wherein the red phosphor coating is made of a non-doped luminescent material with the light-emitting wavelength of greater than 585nm; and the spacer layer is formed by at least one of hole-type organic semiconductor materials whose hole mobility is greater than electronic mobility. The organic electroluminescence device has a CCT (Correlated Color Temperature) feature of the sunlight and can be prepared through a non-doped technology, and furthermore, the organic electroluminescence device has the advantages of simple structure and low requirements for the preparation process.

Description

technical field [0001] The invention relates to the technical field of electroluminescent devices, in particular to an organic electroluminescent device for simulating sunlight and a preparation method thereof. Background technique [0002] White OLED (Organic Light Emitting Diode) is a planar light-emitting device, which has the advantages of ultra-thin, large shape selectivity, suitable as a large-area light source, no need for heat dissipation, and simple processing. It is considered to be an ideal lighting source for the next generation. At the same time, white OLED can also replace ordinary LED light source, as the backlight source of modern mainstream liquid crystal display, realize ultra-thin liquid crystal display. White light OLED can also be combined with color filter film to realize color OLED display. Moreover, white light OLEDs can also be prepared into flexible devices to better serve human life. Therefore, white OLEDs have attracted more and more attention f...

Claims

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Application Information

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IPC IPC(8): H01L51/50H01L51/52H01L51/54H01L51/56
CPCH10K85/00H10K30/865H10K50/80H10K50/00H10K50/11H10K71/00Y02E10/549Y02P70/50
Inventor 罗东向刘佰全兰林锋范林勇蒋春旭刘群兴杨林徐华伟陈玉明
Owner FIFTH ELECTRONICS RES INST OF MINIST OF IND & INFORMATION TECH
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