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

Carbon dot-based room-temperature phosphorescent composite material capable of stably emitting afterglow as well as preparation method, application and use method thereof

A room temperature phosphorescence, composite material technology, applied in luminescent materials, nanotechnology for materials and surface science, chemical instruments and methods, etc., can solve the problems of light quenching, insufficient use, instability, etc.

Active Publication Date: 2022-01-11
SOUTH CHINA AGRI UNIV
View PDF7 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, carbon dot based long afterglow materials still have shortcomings as afterglow materials: (1) currently, only blue light carbon dot based long afterglow materials and green light carbon dot based long afterglow materials can emit their corresponding blue light under ultraviolet excitation and green light, while other carbon dot based long afterglow materials cannot emit their corresponding color afterglow, so that carbon dot based long afterglow materials of other colors cannot be fully used; (2) the current carbon dot based long afterglow materials are also unstable problem, which is prone to photoquenching in water or other solvents

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
  • Carbon dot-based room-temperature phosphorescent composite material capable of stably emitting afterglow as well as preparation method, application and use method thereof
  • Carbon dot-based room-temperature phosphorescent composite material capable of stably emitting afterglow as well as preparation method, application and use method thereof
  • Carbon dot-based room-temperature phosphorescent composite material capable of stably emitting afterglow as well as preparation method, application and use method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] A disclosed embodiment of the present embodiment can stably emit green afterglow phosphor Point Carbon-based composite materials at room temperature, the Y (OH) x F3-x precursor and longlasting green light carbon-based material spot.

[0044] In this embodiment, the point-based carbon material dispersed in said afterglow Y (OH) x F3-x precursor.

[0045] In this embodiment, the Y (OH) x F3-x weight ratio of the carbon precursor and point-based long afterglow material is 1: 1.

[0046] Stably emit above method of producing carbon composite points based phosphor afterglow room temperature, comprising the steps of,

[0047] Sl, the amount of powdered formula using green light spot based long afterglow carbon material, it is added to Y (NO 3 ) 3 Solution, stir, NaF solution was added, stirring was continued for a uniform, sodium hydroxide solution was added and mixed uniformly to give a liquid mixture;

[0048] S2, the obtained mixture was heated S1 120 ℃ at a certain time, to ...

Embodiment 2

[0053] A disclosed embodiment of the present embodiment can stably emit green afterglow phosphor Point Carbon-based composite materials at room temperature, the Y (OH) x F3-x precursor and a carbon-yellow light spot based long afterglow material.

[0054] In this embodiment, the point-based carbon material dispersed in said afterglow Y (OH) x F3-x precursor.

[0055] In this embodiment, the Y (OH) x F3-x weight ratio of the carbon precursor and point-based long afterglow material is 1: 2.

[0056] Stably emit above method of producing carbon composite points based phosphor afterglow room temperature, comprising the steps of,

[0057] Sl, the amount of powdered formula using yellow light spot based long afterglow carbon material, it is added to Y (NO 3 ) 3 Solution, stir, NaF solution was added, stirring was continued for a uniform, sodium hydroxide solution was added and mixed uniformly to give a liquid mixture;

[0058] S2, the obtained mixture was heated S1 150 ℃ at a certain ti...

Embodiment 3

[0063] A disclosed embodiment of the present embodiment can stably emit green afterglow phosphor Point Carbon-based composite materials at room temperature, the Y (OH) x F3-x precursor and emits orange light spot based carbon material longlasting.

[0064] In this embodiment, the point-based carbon material dispersed in said afterglow Y (OH) x F3-x precursor.

[0065] In this embodiment, the Y (OH) x F3-x weight ratio of the carbon precursor and point-based long afterglow material is 1: 1.5.

[0066] Stably emit above method of producing carbon composite points based phosphor afterglow room temperature, comprising the steps of,

[0067] Sl, the amount of use of a powdery formulation orange light spot based long afterglow carbon material, it is added to Y (NO 3 ) 3 Solution, stir, NaF solution was added, stirring was continued for a uniform, sodium hydroxide solution was added and mixed uniformly to give a liquid mixture;

[0068] S2, the obtained mixture was heated at S1 130 ℃ at ...

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
particle sizeaaaaaaaaaa
lattice spacingaaaaaaaaaa
Login to View More

Abstract

The invention relates to the technical field of novel materials, in particular to a carbon dot-based room-temperature phosphorescent composite material capable of stably emitting afterglow as well as a preparation method, application and a use method thereof. The carbon dot-based room-temperature phosphorescent composite material is composed of a Y(OH)xF3-x precursor and a carbon dot-based long-afterglow material; the carbon-dot-based long-afterglow material can emit afterglow of a corresponding color, has the advantages of being stable in performance and not prone to quenching; the carbon dot-based room-temperature phosphorescent composite material can be applied to manufacturing of anti-fake products, sensing products, information encryption products, photoelectric device products or biological imaging products.

Description

Technical field [0001] The present invention relates to a new material technology, particularly to a stable point emit afterglow carbon-based composite material and room temperature phosphorescence preparation method, application method and use. Background technique [0002] Preparation of Carbon point of low cost, simple preparation method has many excellent physical and chemical properties, etc., as the long afterglow material can overcome the conventional semiconductor quantum dots afterglow material, organic fluorescent molecules, fluorescent rare earth-based complex synthetic procedures, passivation difficulties, toxicity, high cost, low efficiency light emission, carbon visible long afterglow point is an ideal material. [0003] Point Carbon rich surface functional groups, thus the carbon easily modified point, prepared flexible, practical applications, the long afterglow materials for carbon-based multi-color light emission point, by designing a multi-mode light emission. ...

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 Applications(China)
IPC IPC(8): C09K11/77C09K11/65B82Y20/00B82Y40/00B82Y30/00
CPCC09K11/7704C09K11/65B82Y20/00B82Y40/00B82Y30/00
Inventor 庄健乐梁萍郑义浩魏浩鹏许晓凯刘应亮胡超凡
Owner SOUTH CHINA AGRI UNIV