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

A kind of chloroborate blue light glass for ultraviolet LED and preparation method thereof

A technology of chloroborate and blue light, which is applied in the field of chloroborate blue light glass and its preparation, can solve the problems of being unable to use LEDs and cannot apply LEDs, and achieve the effects of avoiding the glue mixing process, low cost, and easy industrialization

Active Publication Date: 2019-09-13
WENZHOU UNIV
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] A large number of literatures have reported transparent luminescent glasses, but most of them focus on upconversion luminescent glasses, such as Er 3+ / Yb 3+ The co-doped luminescent glass absorbs the infrared region of the wavelength position [Rsc Adv., 2016, 6(5), 3440-3445; J.Non-CrystallineSolid., 2015, 426, 78-82], which cannot be used for LED
There are also some works focused on luminescent glasses excited by short-wave UV, for example, the absorption wavelength is in the short-wave UV region and cannot be applied to LEDs

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 kind of chloroborate blue light glass for ultraviolet LED and preparation method thereof
  • A kind of chloroborate blue light glass for ultraviolet LED and preparation method thereof
  • A kind of chloroborate blue light glass for ultraviolet LED and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A preparation method of chloroborate blue light glass for ultraviolet LED: accurately weigh 10.01g (0.1mol) of solid raw material CaCO 3 , 15.50g (0.25mol) H 3 BO 3 , 5.55g (0.05mol) CaCl 2 With 1.76g (0.005mol) Eu 2 o 3 , through grinding, mixed uniformly according to the metering ratio, heated at 1250 ° C for 2 hours to a molten state, quickly transferred to a furnace preheated to 520 ° C for annealing, and naturally cooled to room temperature, that is, chloroborate blue light glass for ultraviolet LED product.

[0026] Such as figure 1 As shown in the product photos, the left picture is the product after mechanical cutting, and the right picture is the product before mechanical cutting. It is colorless and transparent under natural light, and emits bright blue light under ultraviolet light. The product is ground and detected by XRD powder diffractometer (BrukerD8Advance), such as figure 2 As shown, the XRD of the product is an amorphous glass structure. Util...

Embodiment 2

[0029] Accurately weigh the solid raw material 10.01g (0.1mol) CaCO 3 , 17.36g (0.28mol) H 3 BO 3 , 3.32g (0.03mol) CaCl 2 With 1.76g (0.005mol) Eu 2 o 3 , through grinding, mix uniformly according to the metering ratio, heat at 1150°C for 1.5 hours to a molten state, quickly transfer to a furnace preheated to 550°C for annealing, and naturally cool to room temperature to obtain the product. The product is colorless and transparent under natural light, and emits bright blue light under ultraviolet light. Its fluorescence spectrogram is similar to that of Example 1.

Embodiment 3

[0031] Accurately weigh the solid raw material 10.01g (0.1mol) CaCO 3 , 12.4g (0.2mol) H 3 BO 3 , 8.87g (0.038mol) CaCl 2 With 0.176g (0.0005mol) Eu 2 o 3 , through grinding, mixed evenly according to the metering ratio, heated at 1200°C for 1.5 hours to a molten state, quickly transferred to a furnace preheated to 500°C for annealing, and naturally cooled to room temperature to obtain the product. The product is colorless and transparent under natural light, and emits bright blue light under ultraviolet light. Its fluorescence spectrogram is similar to that of Example 1.

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
melting pointaaaaaaaaaa
Login to View More

Abstract

The invention discloses a chloroborate blue light glass used for ultraviolet LEDs and a preparation method thereof. The chloroborate blue light glass The chloroborate blue light glass is CaO-H 3 BO 3 -CaCl 2 as matrix, with Eu 2+ As the active ion, its chemical composition formula is CaO‐xH 3 BO 3 -yCaCl 2 :zEu 2+ , among them, 2≤x≤3, 0.3≤y≤0.8, 0.01≤z≤0.1; chloroborate blue light glass is colorless and transparent under natural light, and its excitation spectrum is in the long-wave ultraviolet region of 360-400nm, which can effectively absorb the ultraviolet light emitted by LED The emission spectrum is located at 420-500nm, and it emits broadband blue light under UV lamp. The product of the invention has high luminous efficiency, can avoid the glue mixing process, and can be directly packaged and applied to near-ultraviolet semiconductor LEDs; the raw materials for product preparation are cheap and easy to obtain, and the whole process is carried out in the air, with low equipment requirements and easy industrialization.

Description

technical field [0001] The invention relates to blue light glass, in particular to a chloroborate blue light glass used for ultraviolet LEDs and a preparation method thereof. The glass can absorb 360-400nm long-wave ultraviolet light and emit broadband blue light at 420-500nm, which can be applied Used in near-ultraviolet semiconductor LEDs; it belongs to inorganic solid light-emitting materials. Background technique [0002] Due to its high brightness, low energy consumption, low application voltage and long life, white LED is regarded as the next-generation light source, which will replace the existing traditional light source and be widely used in people's production and life. At present, white light LEDs have been applied in the background light source of mobile phones and safety exit signs. With the further improvement of the luminous efficiency of near-ultraviolet (360-410nm) LED chips, red, green and blue light-emitting materials that can be simultaneously excited by...

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): C03C4/12C03C3/23C03C4/08
Inventor 潘跃晓李丽刘桂侯喜梅刘晓霞吴紫英
Owner WENZHOU UNIV