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Neodymium-and-ytterbium-codoped stannic fluoride glass up-conversion luminescent material, and preparation method and application thereof

A luminescent material, co-doping technology, applied in luminescent materials, chemical instruments and methods, semiconductor/solid-state device manufacturing, etc.

Inactive Publication Date: 2014-10-15
OCEANS KING LIGHTING SCI&TECH CO LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, NdYb co-doped tin fluoride glass up-conversion luminescent materials that can be excited by long-wave radiation such as infrared and red-green light to emit blue light have not been reported yet.

Method used

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  • Neodymium-and-ytterbium-codoped stannic fluoride glass up-conversion luminescent material, and preparation method and application thereof
  • Neodymium-and-ytterbium-codoped stannic fluoride glass up-conversion luminescent material, and preparation method and application thereof
  • Neodymium-and-ytterbium-codoped stannic fluoride glass up-conversion luminescent material, and preparation method and application thereof

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Experimental program
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preparation example Construction

[0028] The preparation method of the above-mentioned neodymium ytterbium co-doped tin fluoride glass up-conversion luminescent material comprises the following steps:

[0029] Step S11, according to SnF 4 : xYb 3+ ,yNd 3+ The stoichiometric ratio of each element weighs SnF 4 , YbF 3 and NdF 3 Powder, wherein, x is 0.005-0.05, and y is 0.002-0.03.

[0030] In this step, the SnF 4 , YbF 3 and NdF 3 The molar ratio of each component of the powder is (92-99.3): (0.5-5): (0.2-3).

[0031] In this step, preferably, SnF 4 , YbF 3 and NdF 3 The molar ratio of each component of the powder is 96:3:1.

[0032] Step S13, mixing the powder weighed in step S11 evenly to obtain a precursor.

[0033] In this step, the powder is ground in a corundum bowl for 20 minutes to 60 minutes to obtain a uniformly mixed precursor, preferably for 40 minutes.

[0034] Step S15, burning the precursor at 800° C. to 1100° C. for 0.5 hours to 5 hours,

[0035] Preferably, the precursor is burne...

Embodiment 1

[0042] The powder with a purity of 99.99% is selected, and the SnF 4 , YbF 3 and NdF 3Each component of the powder is 0.96mmol, 0.03mmol, 0.01mmol by mole, grind it in a corundum mortar for 40 minutes to make it evenly mixed, then burn it in a muffle furnace at 950°C for 3 hours, then cool it down to 250°C and keep it warm After 2 hours, cool to room temperature with the furnace and take it out to obtain bulk material. After crushing, the general chemical formula can be obtained as SnF 4 : 0.03Yb 3+ , 0.01Nd 3+ Up-converting phosphors.

[0043] The process of making organic light-emitting diodes

[0044] The sequentially stacked substrate 1 uses soda-lime glass, the cathode 2 uses a metal Ag layer, and the organic light-emitting layer 3 uses Ir(piq)2(acac), the Chinese name is bis(1-phenyl-isoquinoline)(acetylacetonate) iridium (III), the transparent anode 4 uses indium tin oxide ITO, and the transparent encapsulation layer 5 is polytetrafluoroethylene. The transparent ...

Embodiment 2

[0049] The powder with a purity of 99.99% is selected, and the SnF 4 , YbF 3 and NdF 3 Each component of the powder is 0.965mmol, 0.005mmol, 0.03mmol by mole, grind it in a corundum mortar for 20 minutes to make it evenly mixed, then burn it in a muffle furnace at 800°C for 3 hours, then cool to 250°C and keep it warm After 2 hours, cool to room temperature with the furnace and take it out to obtain bulk material. After crushing, the general chemical formula can be obtained as SnF 4 : 0.005Yb 3+ , 0.03Nd 3+ up-converting phosphors.

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Abstract

The invention provides a neodymium-and-ytterbium-codoped stannic fluoride glass up-conversion luminescent material. The chemical formula of the luminescent material is SnF4: xYb3+,yNd3+, wherein x is in a range of 0.005 to 0.05, and y is in a range of 0.002 to 0.03. In the photoluminescence spectrum of the neodymium-and-ytterbium-codoped stannic fluoride glass up-conversion luminescent material, the excitation wavelength of the neodymium-and-ytterbium-codoped stannic fluoride glass up-conversion luminescent material is 586 nm, and in the wavelength zone of 469 nm, a luminescence peak is formed by transition radiation of Nd3+ ions from 2P3 / 2 to 4I15 / 2; and the material can be used as a blue-light luminescent material. The invention further provides a preparation method for the neodymium-and-ytterbium-codoped stannic fluoride glass up-conversion luminescent material and an organic light-emitting diode using the neodymium-and-ytterbium-codoped stannic fluoride glass up-conversion luminescent material.

Description

technical field [0001] The invention relates to a neodymium-ytterbium co-doped tin fluoride glass up-conversion luminescent material, a preparation method and an organic light-emitting diode. Background technique [0002] Organic light-emitting diodes (OLEDs) have been widely used due to their simple component structure, cheap production cost, self-luminescence, short response time, and bendability. However, it is difficult to obtain stable and efficient OLED blue light materials, which greatly limits the development of white light OLED devices and light source industries. [0003] Up-conversion fluorescent materials can emit visible light and even ultraviolet light under the excitation of long-wave (such as infrared) radiation, and have broad application prospects in the fields of optical fiber communication technology, fiber amplifier, three-dimensional display, biomolecular fluorescent labeling, and infrared radiation detection. However, the NdYb co-doped tin fluoride gl...

Claims

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Application Information

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IPC IPC(8): C09K11/66H01L51/54
Inventor 周明杰王平陈吉星钟铁涛
Owner OCEANS KING LIGHTING SCI&TECH CO LTD
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