A red light material for white light LED based on fluorozirconate and preparation method thereof
A technology of fluorozirconate and white light, which is applied in the direction of luminescent materials, chemical instruments and methods, climate sustainability, etc., to achieve the effects of uniform dispersion of material morphology, good luminous efficiency, and saving production costs
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0022] In a Teflon beaker, the solid NaF, K 2 MnF 6 dissolved in aqueous HF, and then added H 2 ZrF 6 aqueous solution, the feed concentrations of the raw materials in the reaction system are: 1.5mol / L NaF, 1.2mol / L H 2 ZrF 6 , K 2 MnF 6 The concentration is 5.0mol% (relative to H 2 ZrF 6 Calculate), the concentration of HF aqueous solution is 20wt%. The mixture was stirred and reacted at room temperature for 10 hours, filtered with suction, and dried naturally to obtain a white powder. The white powder product emits bright red light under ultraviolet light. Its XRD (Bruker D8Advance X-ray diffractometer detection) such as figure 1 As shown, XRD shows that the product is pure Na 5 Zr 2 f 13 Phase, exactly the same as its standard card 49-0107. Fluoromax-4 fluorescence spectrometer (HORIBA Jobin Yvon Inc.) was used to detect the luminescent properties of the product at room temperature, such as figure 2 As shown, the excitation spectrum of the white powder produ...
Embodiment 2
[0025] In a Teflon beaker, the solid NaF, K 2 MnF 6 dissolved in aqueous HF, and then added H 2 ZrF 6 aqueous solution, the feed concentrations of the raw materials in the reaction system are: 2.0mol / L NaF, 1.6mol / L H 2 ZrF 6 , K 2 MnF 6 The concentration is 8.0mol% (relative to H 2 ZrF 6 Calculate), the concentration of HF aqueous solution is 30wt%. Stir and react at room temperature for 2 hours, filter with suction, and dry naturally to obtain a white powder. The white powder product emits bright red light under ultraviolet light. The product glows red under a UV light. The XRD pattern, excitation spectrum and emission spectrum of the white powder material are respectively compared with Figure 1-3 basically the same.
Embodiment 3
[0027] In a Teflon beaker, the solid NaF, K 2 MnF 6 dissolved in aqueous HF, and then added H 2 ZrF 6 aqueous solution, the feeding concentrations of the raw materials in the reaction system are: 0.5mol / L NaF, 0.4mol / L H 2 ZrF 6 , K 2 MnF 6 The concentration is 0.1mol% (relative to H 2 ZrF 6 Calculate), the concentration of HF aqueous solution is 4wt%. The mixture was stirred and reacted at room temperature for 3 hours, filtered by suction, and dried naturally to obtain a white powder. The white powder product emits bright red light under ultraviolet light. The product glows red under a UV light. The XRD pattern, excitation spectrum and emission spectrum of the white powder material are respectively compared with Figure 1-3 basically the same.
PUM
Login to View More Abstract
Description
Claims
Application Information
Login to View More