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A method for preparing quantum dot light detection array device based on inkjet printing technology

A technology of inkjet printing and light detection, which is applied in the manufacture of semiconductor devices, electrical components, and final products, can solve the problems of complex preparation process and waste of materials, and achieve strong controllability, simple and convenient process operation, and good recovery sexual effect

Inactive Publication Date: 2017-03-08
FUZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

According to this characteristic, there are related quantum dot photodetection researches in the prior art, but the preparation process of photodetectors in the current research is complicated and wastes materials, while inkjet printing technology has advantages that other technologies do not have. If you use inkjet, you can just print where you want to print, and there will be no material waste, and because it is in the form of a printing array, you can properly cut the photodetector device according to your needs in the later stage. This can be said that only inkjet Advantages of ink-printed devices

Method used

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  • A method for preparing quantum dot light detection array device based on inkjet printing technology
  • A method for preparing quantum dot light detection array device based on inkjet printing technology
  • A method for preparing quantum dot light detection array device based on inkjet printing technology

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Effect test

Embodiment 1

[0045] Step S1: ultrasonically clean the common PET substrate used for printing with acetone, ethanol and deionized water for 15 minutes to remove surface impurities of the common PET substrate; perform plasma treatment for 10 minutes to improve the printing ink’s effect on the common PET substrate. Wetting of the substrate; and after plasma treatment, purging the common PET substrate with nitrogen; in the present embodiment, the common PET substrate is plasma treated and soaked in chloroform to improve The surface roughness of the common PET substrate.

[0046] Step S2: using an inkjet printer jetlab2 to print a 100×10 silver electrode array on the ordinary PET substrate with an 80-micron nozzle, and heat-treat the silver electrodes at a temperature of 80 degrees Celsius after printing, wherein the silver electrode array The x-axis point spacing is 600 microns, the y-axis point spacing is 100 microns, the thickness of the silver electrode is 50 nanometers, and the printing wi...

Embodiment 2

[0051] Step S1: ultrasonically clean the common PET substrate used for printing with acetone, ethanol and deionized water for 15 minutes to remove surface impurities of the common PET substrate; perform plasma treatment for 10 minutes to improve the printing ink’s effect on the common PET substrate. Wetting of the substrate; and after plasma treatment, purging the common PET substrate with nitrogen; in the present embodiment, the common PET substrate is plasma treated and soaked in chloroform to improve The surface roughness of the common PET substrate.

[0052] Step S2: using an inkjet printer jetlab2 to print a 100×10 silver electrode array on the ordinary PET substrate with an 80-micron nozzle, and heat-treat the silver electrodes at a temperature of 80 degrees Celsius after printing, wherein the silver electrode array The x-axis point spacing is 600 microns, the y-axis point spacing is 100 microns, the thickness of the silver electrode is 50 nanometers, and the printing wi...

Embodiment 3

[0057] Step S1: Ultrasonic cleaning the ordinary glass substrate used for printing with acetone, ethanol and deionized water for 15 minutes to remove surface impurities of the ordinary glass substrate; performing plasma treatment for 10 minutes to improve the printing ink's effect on the ordinary glass. Wetting of the substrate; and after plasma treatment, purging the common glass substrate with nitrogen; in this embodiment, the common glass substrate is plasma treated and soaked in chloroform to improve The surface roughness of the common glass substrate.

[0058] Step S2: using an inkjet printer jetlab2 to print a 100×10 silver electrode array on the ordinary glass substrate with an 80-micron nozzle, and heat-treat the silver electrodes at a temperature of 80 degrees Celsius after printing, wherein the silver electrode array The x-axis point spacing is 600 microns, the y-axis point spacing is 100 microns, the thickness of the silver electrode is 50 nanometers, and the printi...

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Abstract

The invention relates to a method for preparing a quantum dot photodetection array device based on ink-jet printing technology. The method is characterized by carrying out plasma and chloroform processing on a substrate; then, printing a metal electrode array and a quantum dot array on the substrate through an ink-jet printer with metal electrode ink and quantum dot ink respectively; and finally, carrying out current and voltage test in the dark and any monochromatic light source environment. The method for preparing the quantum dot photodetection array device based on the ink-jet printing technology is simple in preparation technology, and can carry out large-scale production; and the photodetection device adopts quantum dots, so that the photodetection device has a better photosensitive characteristic for any excitation light source.

Description

technical field [0001] The invention relates to a method for preparing a quantum dot light detection array device based on inkjet printing technology. Background technique [0002] Due to the small size and large specific surface of quantum dots, the quantum size effect is significant, which makes the physical properties of nanosystems such as light, heat, and electricity different from conventional materials, and many novel properties appear. A large number of experiments have shown that quantum dots have different response characteristics for any excitation wavelength smaller than the fluorescence wavelength. According to this characteristic, there are related quantum dot photodetection researches in the prior art, but the preparation process of photodetectors in the current research is complicated and wastes materials, while inkjet printing technology has advantages that other technologies do not have. If you use inkjet, you can just print where you want to print, and th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L31/18H01L31/0352
CPCH01L31/035218H01L31/18Y02P70/50
Inventor 李福山郭太良许鸿源陈伟聂晨胡海龙
Owner FUZHOU UNIV