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Praseodymium-ytterbium co-doped zirconium gallium sulfide glass up-conversion luminescent material as well as preparation method and application thereof

A technology of luminescent materials and co-doping, which is applied in the fields of luminescent materials, chemical instruments and methods, semiconductor/solid-state device manufacturing, etc.

Inactive Publication Date: 2016-11-16
郑甘裕
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, upconversion luminescent materials for praseodymium-ytterbium co-doped zirconium-gallium sulfide glass that can be excited by long-wave radiation such as infrared and red-green light to emit blue light have not yet been reported.

Method used

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  • Praseodymium-ytterbium co-doped zirconium gallium sulfide glass up-conversion luminescent material as well as preparation method and application thereof
  • Praseodymium-ytterbium co-doped zirconium gallium sulfide glass up-conversion luminescent material as well as preparation method and application thereof
  • Praseodymium-ytterbium co-doped zirconium gallium sulfide glass up-conversion luminescent material as well as preparation method and application thereof

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Experimental program
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Effect test

preparation example Construction

[0028] The preparation method of the above-mentioned praseodymium-ytterbium co-doped zirconium-gallium sulfide glass up-conversion luminescent material comprises the following steps:

[0029] Step S11, according to ZrS-Ga 2 S 3 -R 2 S: xPr 3+ ,yYb 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, R is at least one of lithium element, sodium element, potassium element, rubidium element and cesium element, x is 0.01-0.06, and y is 0.01-0.04.

[0030] In this step, the ZrS, Ga 2 S 3 , R 2 S, Pr 2 S 3 and Yb 2 S 3 The molar ratio of each component of the powder (0.57-0.8): (0.12-0.3): (0.03-0.06): (0.005-0.03): (0.005-0.02).

[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, ...

Embodiment 1

[0042] Choose powder with a purity of 99.99%, ZrS, Ga 2 S 3 , Li 2 S, Pr 2 S 3 and Yb 2 S 3 The molar ratio of each component of the powder is 0.2:0.05:0.015:0.01. 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 to 200°C and keep it for 2 hours. hours, then take it out with the furnace cooling to room temperature to obtain bulk material, after pulverization, the general chemical formula can be obtained as 0.7ZrS-0.2Ga 2 S 3 -0.05Li 2 S: 0.03Pr 3+ , 0.02Yb 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 ...

Embodiment 2

[0049] Choose powder with a purity of 99.99%, ZrS, Ga 2 S 3 , Li 2 S, Pr 2 S 3 and Yb 2 S 3 The molar ratio of each component of the powder is 0.8:0.12:0.06:0.005:0.005, 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 Keep warm at ℃ for 0.5 hours, and then take it out after cooling to room temperature with the furnace to obtain a bulk material, which can be crushed to obtain a general chemical formula of 0.8ZrS-0.12Ga 2 S 3 -0.06Li 2 S: 0.01Pr 3 up-converting phosphors.

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Abstract

The invention discloses a praseodymium-ytterbium co-doped zirconium gallium sulfide glass up-conversion luminescent material of which the chemical formula is ZrS-Ga2S3-R2S: xPr<3+>, yYb<3+>, in the formula, R is at least one of a lithium element, a sodium element, a potassium element, a rubidium element and a caesium element; x is 0.01-0.06; and y is 0.01-0.04. In the photoluminescence spectra of the praseodymium-ytterbium co-doped zirconium gallium sulfide glass up-conversion luminescent material, the excitation wavelength of the praseodymium-ytterbium co-doped zirconium gallium sulfide glass up-conversion luminescent material is 578nm, a luminescent peak is formed by transition radiation of Pr<3+> ions from <3>P<0> to <3>H<4> in a wavelength zone of 483nm, and thus the material can be used as a blue luminescent material. The invention further provides a preparation method of the praseodymium-ytterbium co-doped zirconium gallium sulfide glass up-conversion luminescent material and an organic light-emitting diode using the praseodymium-ytterbium co-doped zirconium gallium sulfide glass up-conversion luminescent material.

Description

technical field [0001] The invention relates to a praseodymium-ytterbium co-doped zirconium-gallium sulfide glass up-conversion luminescent material, a preparation method and an organic light-emitting diode. Background technique [0002] Organic light-emitting diodes (OLEDs) are extremely 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-conver...

Claims

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Application Information

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IPC IPC(8): C09K11/67H01L51/50H01L51/52
CPCC09K11/7767H10K50/00H10K50/84
Inventor 郑甘裕
Owner 郑甘裕
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