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Neodymium-ytterbium-codoped zirconia up-conversion luminescent material as well as 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.

Active Publication Date: 2013-04-17
OCEANS KING LIGHTING SCI&TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, NdYb co-doped zirconia 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-ytterbium-codoped zirconia up-conversion luminescent material as well as preparation method and application thereof
  • Neodymium-ytterbium-codoped zirconia up-conversion luminescent material as well as preparation method and application thereof
  • Neodymium-ytterbium-codoped zirconia up-conversion luminescent material as well as preparation method and application thereof

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Experimental program
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preparation example Construction

[0023] The preparation method of the above-mentioned neodymium-ytterbium co-doped zirconia up-conversion luminescent material comprises the following steps:

[0024] Step S11, according to ZrO 2 :xYb 3+ ,yNd 3+ The stoichiometric ratio of each element weighs ZrO 2 , Yb 2 o 3 and Nd 2 o 3 Powder, where 0.01≤x≤0.1, 0.004≤y≤0.06.

[0025] In this step, preferably, x is 0.06 and y is 0.02.

[0026] It can be appreciated that ZrO can also be weighed in this step 2 , Yb 2 o 3 and Nd 2 o 3 powder and mix evenly, in which ZrO 2 , Yb 2 o 3 and Nd 2 o 3 The molar ratio is 89.6~93:0.5~5:0.2~3, preferably 92:3:1.

[0027] Step S13, mixing the powder weighed in step S11 evenly to obtain a precursor.

[0028] In this step, the powder is ground in a corundum bowl for 20 minutes to 60 minutes to obtain a homogeneously mixed precursor, preferably for 40 minutes.

[0029] Step S15, burning the precursor at 800° C. to 1000° C. for 0.5 hours to 5 hours, then cooling to 100° C....

Embodiment 1

[0037] Choose powder with a purity of 99.99%, ZrO 2 , Yb 2 o 3 and Nd 2 o 3 The powder, the molar ratio of which is 92:3:1, was ground in a corundum mortar for 40 minutes to make it evenly mixed, then burned at 900°C for 3 hours, then cooled to 200°C for 2 hours, and then cooled to Take it out at room temperature to obtain bulk material, and after crushing, you can get the general chemical formula Zr 0.92 o 2 :0.06Yb 3+ , 0.02Nd3+ Up-converting phosphors.

[0038] see figure 2 , figure 2 Shown are the obtained neodymium and ytterbium co-doped zirconia up-conversion luminescent materials and samples without ytterbium (the general chemical formula is Zr 0.98 o 2 :0.02Nd 3+ ) photoluminescence spectrum. Depend on figure 2 It can be seen that the excitation wavelength of the neodymium-ytterbium co-doped zirconia up-conversion luminescent material obtained in this embodiment is 586nm, and in the 469nm wavelength region, Nd 3+ ion 2 P 3 / 2 → 4 I 15 / 2 The transiti...

Embodiment 2

[0041] Choose powder with a purity of 99.99%, ZrO 2 , Yb 2 o 3 and Nd 2 o 3 The powder, the molar ratio of which is 93:0.5:3, was ground in a corundum mortar for 20 minutes to make it evenly mixed, then burned at 800°C for 0.5 hour, then cooled to 100°C and kept for 0.5 hour, and then cooled with the furnace to Take it out at room temperature to obtain bulk material, and after crushing, you can get the general chemical formula Zr 0.93 o 2 :0.01Yb 3+ , 0.06Nd 3+ up-converting phosphors.

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Abstract

The invention relates to a neodymium-ytterbium-codoped zirconia up-conversion luminescent material which has a chemical formula of ZrO2:xYb<3+>,yNd<3+>, wherein x is more than or equal to 0.01 and less than or equal to 0.1, and y is more than or equal to 0.004 and less than or equal to 0.06. In a photoluminescence spectrum of the neodymium-ytterbium-codoped zirconia up-conversion luminescent material, the excitation wavelength of the neodymium-ytterbium-codoped zirconia up-conversion luminescent material is 586nm, a luminescent peak is formed by transition radiation of Nd<3+> ions 2P3 / 2->4I15 / 2 in a 469nm wavelength area, and the neodymium-ytterbium-codoped zirconia up-conversion luminescent material can be used as a blue light emitting material. The invention further provides a preparation method of the neodymium-ytterbium-codoped zirconia up-conversion luminescent material and an organic light-emitting diode using the neodymium-ytterbium-codoped zirconia up-conversion luminescent material.

Description

【Technical field】 [0001] The invention relates to a neodymium-ytterbium co-doped zirconia 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 NdYb co-doped zirconia up-conve...

Claims

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Application Information

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IPC IPC(8): C09K11/67H01L51/54
Inventor 周明杰王平陈吉星钟铁涛
Owner OCEANS KING LIGHTING SCI&TECH CO LTD
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