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A kind of manufacturing method of graphene organic electroluminescent device

A production method and a luminescence technology, which are applied in organic light-emitting devices, organic light-emitting device manufacturing/processing, organic semiconductor devices, etc., can solve problems such as current hysteresis, achieve suppression of current hysteresis, have obvious effects, and improve device electro-optical conversion efficiency Effect

Active Publication Date: 2017-05-17
NANJING UNIV OF POSTS & TELECOMM
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, so far, no one has discovered the current hysteresis phenomenon in graphene organic electroluminescent devices and its impact on device performance. In addition, how to suppress the current hysteresis phenomenon and improve the photoelectric efficiency of the device still needs further research

Method used

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  • A kind of manufacturing method of graphene organic electroluminescent device
  • A kind of manufacturing method of graphene organic electroluminescent device
  • A kind of manufacturing method of graphene organic electroluminescent device

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Embodiment 1

[0031] A. Glass substrate 1, use acetone and ethanol cotton balls to scrub, then use acetone, ethanol and deionized water to sonicate for 10 minutes, then dry at 100 degrees;

[0032] B. Transfer the three to five layers of graphene film 2 prepared by vapor deposition to the glass substrate 1 by wet transfer, and dry at 160 degrees. After 30 minutes, use acetone to soak the film to clean the PMMA, ten minutes each time. repeat three times;

[0033] C. Polyethylenedioxythiophene: polystyrene sulfonic acid (PEDOT: PSS), which is the hole transport layer 3, is attached to the glass substrate 1 by spin coating, and the spin coating speed of the first layer is 2000rpm for 1 minute , followed by annealing at 120 degrees for half an hour, the spin coating speed of the second layer is 1000rpm, 1 minute, and then annealing at 120 degrees for half an hour;

[0034] D. Using 2,6-bis((9H-carbazol-9-yl)-3,1-phenylene)pyridine (26DCzPPy): 1,1-bis[4-[N,N-bis(p-toluene )amino]phenyl]cyclohe...

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Abstract

The invention discloses a method for manufacturing a graphene organic electroluminescent device, comprising the following steps: S1, decontaminating and dewatering a glass substrate on the surface; S2, transferring graphene obtained by a vapor phase deposition method to the surface for decontamination , on the glass base layer after water removal treatment; S3, attaching the hole transport layer on the graphene film layer; S4, attaching the light-emitting layer of the electroluminescence device on the hole transport layer; S5, attaching the electron transport layer On the light-emitting layer of the organic electroluminescent device; S6, attaching the opaque metal electrode layer on the electron transport layer; S7, suppressing the current hysteresis phenomenon by performing electric field treatment on the electroluminescent device, and improving the photoelectric performance of the device. The method of the invention is simple and easy to implement, the effect is obvious, and the performance of the obtained electroluminescence device is the best.

Description

technical field [0001] The invention manufactures an organic electroluminescence device with graphene as an electrode, and invents a method for improving the luminescence characteristics of a diode by applying an electric field, which belongs to the field of electroluminescence. [0002] technical background [0003] Organic electroluminescent devices (OLEDs) have the advantages of light weight, low cost, easy large-scale manufacturing, flexibility, high electro-optical conversion efficiency, thin thickness, and wide viewing angle, while graphene-based electroluminescent devices are regarded as the most Promising next-generation display technology. [0004] Due to the electrical, optical, thermal and mechanical properties of graphene, it has attracted extensive attention in the fields of field effect transistors, sensors, batteries, and optoelectronic devices. Especially in electroluminescent devices, graphene has the advantages of flexibility, low cost, and easy mass produc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L51/56H01L51/52H01L51/54
CPCH10K50/81H10K2102/00H10K71/00
Inventor 陈淑芬张帅章琴黄维
Owner NANJING UNIV OF POSTS & TELECOMM
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