Semiconductor nanoparticles, color conversion member including same, and electronic device

A nanoparticle and electronic device technology, applied in the manufacture of semiconductor devices, organic semiconductor devices, semiconductor/solid-state devices, etc., can solve the problems of low light efficiency and achieve high blue light absorption rate, excellent light efficiency, and high color purity Effect

Pending Publication Date: 2022-02-22
SAMSUNG DISPLAY CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Liquid crystal display devices use color conversion parts to form colors. When the light emitted from the backlight light source passes through the red, green, and blue color conversion parts, the amount of light is reduced to about 1 / 3 by each color conversion part, so the light efficiency is low.

Method used

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  • Semiconductor nanoparticles, color conversion member including same, and electronic device
  • Semiconductor nanoparticles, color conversion member including same, and electronic device
  • Semiconductor nanoparticles, color conversion member including same, and electronic device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0087] Example 1: ZeSe 0.66 Te 0.33 Synthesis of / ZnSe / ZnS Semiconductor Nanoparticles

[0088] 0.6 mmol of zinc oleate (Zinc Oleate) and 10 mL of 1-octadecene (1-octadecene) were added to the three-necked flask, and a vacuum state was maintained at 110° C. for 1 hour. Then, after releasing the vacuum and filling with an inert gas, the temperature was raised to 230°C. 0.2 mmol of diphenylphosphine selenide was added at 230° C., and then 0.1 mmol of trioctylphosphine telluride was added and reacted for 30 minutes, after which the temperature was raised to 300° C. and reacted for 15 minutes.

[0089] Next, 1 mmol of zinc oleate (Zinc Oleate) and 1 mmol of trioctylphosphine selenide (trioctylphosphine selenide) were added, followed by a reaction for 1 hour to form a zinc selenide (Zinc selenide) shell.

[0090] Thereafter, 2 mmol of zinc oleate (Zinc Oleate) and 2 mmol of trioctylphosphinesulfide (trioctylphosphinesulfide) were added, followed by a reaction for 1 hour to fo...

Embodiment 2

[0091] Example 2: ZeSe 0.75 Te 0.25 Synthesis of / ZnSe / ZnS Semiconductor Nanoparticles

[0092] 0.6 mmol of zinc oleate (Zinc Oleate) and 10 mL of 1-octadecene (1-octadecene) were added to the three-necked flask, and a vacuum state was maintained at 110° C. for 1 hour. Then, after releasing the vacuum and filling with an inert gas, the temperature was raised to 230°C. 0.225 mmol of diphenylphosphine selenide was added at 230°C, and then 0.075 mmol of trioctylphosphine telluride was added and reacted for 30 minutes, then the temperature was raised to 300°C and reacted for 15 minutes. In the subsequent process, the zinc selenide (Zinc selenide) shell and the zinc sulfide (Zinc Sulfide) shell were sequentially formed by the same method as in Example 1, thereby obtaining the semiconductor nanoparticles of Example 2.

Embodiment 3

[0093] Example 3: ZeSe 0.5 Te 0.5 Synthesis of / ZnSe / ZnS Semiconductor Nanoparticles

[0094] 0.6 mmol of zinc oleate (Zinc Oleate) and 10 mL of 1-octadecene (1-octadecene) were added to the three-necked flask, and a vacuum state was maintained at 110° C. for 1 hour. Then, after releasing the vacuum and filling with an inert gas, the temperature was raised to 230°C. 0.15 mmol of diphenylphosphine selenide was added at 230° C., and then 0.15 mmol of trioctylphosphine telluride was added and reacted for 30 minutes, after which the temperature was raised to 300° C. and reacted for 15 minutes. In the subsequent process, the zinc selenide (Zinc selenide) shell and the zinc sulfide (Zinc Sulfide) shell were sequentially formed by the same method as in Example 1, thereby obtaining the semiconductor nanoparticles of Example 3.

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Abstract

Provided are a semiconductor nanoparticle, a color conversion member including the semiconductor nanoparticle, and an electronic device including the semiconductor nanoparticle, the semiconductor nanoparticle including: a core including ZnSe1-xTex; an intermediate shell covering the core and containing at least one of ZnSe and ZnSeyS1-y; and an outer shell covering the intermediate shell and containing a Group II-VI compound, where x satisfies 0.2 < x < = 0.5 and y satisfies 0 < y < 1, the semiconductor nanoparticles emitting visible light other than blue light.

Description

technical field [0001] The present invention relates to semiconductor nanoparticles, color conversion components comprising the semiconductor nanoparticles, and electronic devices comprising the semiconductor nanoparticles. Background technique [0002] A semiconductor nanoparticle is a nanocrystal of a semiconductor substance, which is a substance exhibiting a quantum confinement effect, and is also called a quantum dot. If the quantum dot receives light from an excitation source to reach an energy excited state, it releases energy based on its corresponding energy band gap. At this time, even if it is the same substance, it will still show the characteristics that the wavelength is different according to the particle size. Therefore, the light of the desired wavelength band can be obtained by adjusting the size of the quantum dots, because it can show excellent color purity and high luminous efficiency. characteristics, therefore, can be applied to a variety of elements o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K11/02C09K11/88G02F1/1335H01L33/06H01L51/50
CPCC09K11/883C09K11/02G02F1/133614H01L33/06H10K50/115B82Y20/00B82Y30/00G02F2202/36H10K59/38H10K2102/331C09K11/025C09K11/565G02F1/13H01L27/156B82Y40/00H10K50/80H10K50/125
Inventor 权善英裵完基吴根灿李赫珍张峻赫李学俊
Owner SAMSUNG DISPLAY CO LTD
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