Unlock instant, AI-driven research and patent intelligence for your innovation.

A Simultaneous Optimization of Laser Properties of Organic Polymers and Carrier Injection in Electroluminescent Devices

A technology for electroluminescent devices and organic light-emitting devices, which is applied in the directions of electric solid devices, electrical components, semiconductor devices, etc., to achieve the effects of improving solubility, improving device carrier injection, and improving laser performance

Active Publication Date: 2021-06-25
NANJING UNIV OF POSTS & TELECOMM
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the vast majority of organic lasers can only work under optical pumping, how to realize electrically pumped organic lasers has become a major challenge in the field of organic optoelectronics

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A Simultaneous Optimization of Laser Properties of Organic Polymers and Carrier Injection in Electroluminescent Devices
  • A Simultaneous Optimization of Laser Properties of Organic Polymers and Carrier Injection in Electroluminescent Devices
  • A Simultaneous Optimization of Laser Properties of Organic Polymers and Carrier Injection in Electroluminescent Devices

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Example 1: Preparation of organic laser devices by blending F8BT acceptor and oligomer donor

[0029] 1) Preparation of the blend solution: the oligomer materials DPHS, DF, DCF 3 respectively dissolved in toluene solution with a concentration of 20 mg / mL, stirred magnetically at room temperature for 4 to 6 hours, dissolved the polymer material F8BT in toluene solution with a solubility of 30 mg / mL, and stirred magnetically at room temperature for 4 to 6 hours, respectively Blend the dissolved polymer material F8BT with the oligomer at a ratio of 10%, 20%, and 40%, and stir it magnetically at room temperature for 1 hour to disperse it evenly;

[0030] 2) Cleaning of the substrate: place the quartz plate on the substrate holder and place it in a beaker, add washing powder and heat it on a hot stage at 80°C to fully dissolve the washing powder, then use deionized water, acetone, and ethanol in sequence After ultrasonic cleaning for 20 minutes, place in an oven at 80°C for...

Embodiment 2

[0035] Example 2: Preparation of organic electroluminescent devices by blending F8BT acceptor and oligomer donor

[0036] 1) Preparation of the blend solution: Dissolve the oligomer materials DPHS, DF, and DCF3 in toluene solution at a concentration of 20 mg / mL, stir magnetically at room temperature for 4 to 6 hours, and dissolve the polymer material F8BT in toluene solution , the solubility is 15mg / mL, magnetically stirred at room temperature for 4 to 6 hours, the dissolved polymer material F8BT was blended with the oligomer according to the ratio of 10%, 20%, and 40%, respectively, and magnetically stirred at room temperature 1 hour to make it evenly dispersed;

[0037] 2) Cleaning of the substrate: place the indium tin oxide conductive glass on the substrate holder and place it in a beaker, add washing powder and heat it on a hot stage at 80°C to fully dissolve the washing powder, and use deionized water, Acetone and ethanol were ultrasonically cleaned for 20 minutes in sequ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
thicknessaaaaaaaaaa
thicknessaaaaaaaaaa
thicknessaaaaaaaaaa
Login to View More

Abstract

The invention discloses a method for synchronously optimizing the laser properties of an organic polymer and the carrier injection of an electroluminescent device, which is realized by arranging an organic active layer in both an organic laser device and an organic light-emitting device, and the organic active layer is Binary blending organic layer, the binary blending material used is prepared by adding polymer material F8BT to the donor organic material at a ratio of 1-40wt%. By adding different functional groups to the organic donor material, the improved The solubility of the system, the stability of the environment, and effectively regulate the energy level structure of the system, improve the carrier injection of the device, and the current efficiency of the organic light-emitting device is changed by the change of the energy level of the host; without changing the laser luminescence peak position of the acceptor Under the premise of , in the blend system, compared with the acceptor material itself, the amplification threshold of spontaneous emission is reduced, the laser performance is improved, and the luminous efficiency of LED devices is improved, which has an important guiding role in the development and application of electrically pumped organic lasers in the future.

Description

technical field [0001] The present invention relates to the field of organic laser and organic luminescence, in particular to a method for controlling the organic laser performance of the blend and the carrier injection of the electroluminescence device by doping organic substances of different hosts, so as to change the electroluminescence performance of the device. Background technique [0002] Organic polymers have received continuous attention as laser gain media in the past two decades because of their solution processability, high photoluminescence quantum efficiency, large stimulated emission cross section, and chemically tunable emission wavelength. Among them, organic lasers are the core devices in the field of organic optoelectronics due to their advantages such as abundant materials, low cost, flexibility, and solution processing. They have broad application prospects in flexible wearable devices, intelligent interconnection, and biomedicine. It has attracted grea...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): H01L51/50H01L51/54
CPCH10K85/113H10K50/12
Inventor 夏瑞东海港张琪孙汇智郭祥儒
Owner NANJING UNIV OF POSTS & TELECOMM