Praseodymium holmium co-doped zirconium aluminium oxide glass upconversion luminescence material, and preparation method and application thereof

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

Inactive Publication Date: 2014-08-06
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, the up-conversion luminescent material of praseodymium-holmium co-doped zirconium-aluminum oxide glass that can be excited by long-wave radiation such as infrared and red-green light to emit blue light has not been reported yet.

Method used

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  • Praseodymium holmium co-doped zirconium aluminium oxide glass upconversion luminescence material, and preparation method and application thereof
  • Praseodymium holmium co-doped zirconium aluminium oxide glass upconversion luminescence material, and preparation method and application thereof
  • Praseodymium holmium co-doped zirconium aluminium oxide glass upconversion luminescence 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 praseodymium-holmium co-doped zirconium-aluminum oxide glass up-conversion luminescent material comprises the following steps:

[0029] Step S11, according to ZrO-Al 2 o 3 -Na 2 O:xPr 3+ ,yHo 3+ The stoichiometric ratio of each element weighs ZrO, Al 2 o 3 , Na 2 O, Pr 2 o 3 and Ho 2 o 3 Powder, wherein, x is 0.01-0.06, and y is 0.01-0.04.

[0030] In this step, the ZrO, Al 2 o 3 , Na 2 O, Pr 2 o 3 and Ho 2 o 3 The molar ratio of each component of the powder is (0.57~0.8): (0.12~0.3): (0.03~0.06): (0.01~0.06): (0.01~0.04).

[0031] In this step, preferably, x is 0.03 and y is 0.02.

[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 ...

Embodiment 1

[0042] The powder with a purity of 99.99% is selected, and ZrO, Al 2 o 3 , Na 2 O, Pr 2 o 3 and Ho 2 o 3 The molar ratio of each component of the powder is 0.7:0.2:0.05:0.03:0.02, 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, and then cool it to 200°C Keep it warm for 2 hours, then take it out after cooling to room temperature with the furnace, and obtain a bulk material. After crushing, you can get the general chemical formula of 0.7ZrO-0.2Al 2 o 3 -0.05Na 2 O: 0.03Pr 3+ , 0.02Ho 3+ Up-converting phosphors.

[0043] The process of organic light-emitting diode preparation:

[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 encap...

Embodiment 2

[0049] The powder with a purity of 99.99% is selected, and ZrO, Al 2 o 3 , Na 2 O, Pr 2 o 3 and Ho 2 o 3 The molar ratio of each component of the powder is 0.8:0.12:0.06:0.01:0.01, 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, and then cool it to 250°C Keep it warm at ℃ for 0.5 hours, then take it out after cooling to room temperature with the furnace, and obtain a bulk material. After crushing, you can get the general chemical formula of 0.8ZrO-0.12Al 2 o 3 -0.06Na 2 O: 0.01Pr 3+ , 0.01Ho 3+ up-converting phosphors.

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Abstract

A praseodymium holmium co-doped zirconium aluminum oxide glass upconversion luminescence material has a chemical formula of ZrO-Al2O3-Na2O:xPr<3+>, yHo<3+>, wherein x is 0.01- 0.06, and y is 0.01-0.04. In the photoluminescence spectrum of the praseodymium holmium co-doped zirconium aluminum oxide glass upconversion luminescence material, the praseodymium holmium co-doped zirconium aluminum oxide glass upconversion luminescence material has excitation wavelength of 578 nm, forms a luminescence peak at 483 nm wavelength zone by transition radiation of by Pr<3+> from 3P0 to 3H4, and can be used as a blue light luminescent material. The invention also provides a preparation method of the praseodymium holmium co-doped zirconium aluminum oxide glass upconversion luminescent material and an organic light-emitting diode using the praseodymium holmium co-doped zirconium aluminum oxide glass upconversion luminescent material.

Description

technical field [0001] The invention relates to a praseodymium-holmium co-doped zirconium-aluminum oxide 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 up-conversion lu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K11/64H01L51/54
Inventor 周明杰王平陈吉星张振华
Owner OCEANS KING LIGHTING SCI&TECH CO LTD
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