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Preparation method and application of calcium cuprate nanosheet with ultrafast relaxation time

A relaxation time and nanosheet technology, applied in the field of preparation of Ca2CuO3 nanosheets, can solve the problem of reducing the size to nanometer scale, and achieve the effect of large third-order nonlinear coefficient

Active Publication Date: 2021-10-08
FUZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Or use the sol-gel method in order to obtain separate particles and smaller sizes of Ca 2 CuO 3 material, but its size is still around 1 μm, and the Ca 2 CuO 3 Single crystal size down to the nanoscale

Method used

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  • Preparation method and application of calcium cuprate nanosheet with ultrafast relaxation time
  • Preparation method and application of calcium cuprate nanosheet with ultrafast relaxation time
  • Preparation method and application of calcium cuprate nanosheet with ultrafast relaxation time

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] a Ca 2 CuO 3 The preparation steps of nanosheets are:

[0026] (1) Weigh 6.28 mmol Ca(NO 3 ) 2 4H 2 O, 3.14 mmol Cu(NO 3 ) 2 ·3H 2 O and 12.56 mmol C 6 h 8 o 7 ·H 2 O was placed in a beaker, and 16 mL of diethylene glycol monobutyl ether was added for ultrasonic stirring to dissolve to obtain a stable blue solution;

[0027] (2) Put the obtained blue solution into a water bath at 80 °C and stir for 2 h at a constant temperature, then transfer it to an oil bath at 130 °C and stir for 2 h at a constant temperature to obtain a blue-white sticky lump;

[0028](3) Transfer the obtained substance to an evaporating dish, place it on a universal electric furnace and evaporate to dryness to obtain a brown powder. The obtained brown powder was ground into a fine powder, placed in a crucible, sintered at 900 °C for 1 h, cooled naturally and ground again to obtain a bulk powder Ca 2 CuO 3 ;

[0029] (4) Take 0.75 g bulk powder Ca 2 CuO 3 Put it into a ball mill jar...

Embodiment 2

[0032] a Ca 2 CuO 3 The preparation steps of nanosheets are:

[0033] (1) Weigh 6.28 mmol Ca(NO 3 ) 2 4H 2 O, 3.14 mmol Cu(NO 3 ) 2 ·3H 2 O and 18.84 mmol C 6 h 8 o 7 ·H 2 O was placed in a beaker, and 10 mL of diethylene glycol monobutyl ether was added for ultrasonic stirring to dissolve to obtain a stable blue solution;

[0034] (2) Put the obtained blue solution in a water bath at 60 °C and stir for 1 h at a constant temperature, then transfer it to an oil bath at 100 °C and stir for 1 h at a constant temperature to obtain a blue-white sticky lump;

[0035] (3) Transfer the obtained substance to an evaporating dish, place it on a universal electric furnace and evaporate to dryness to obtain a brown powder. The obtained brown powder was ground into a fine powder, placed in a crucible, sintered at 600 °C for 1 h, cooled naturally and ground again to obtain a bulk powder Ca 2 CuO 3 ;

[0036] (4) Take 0.5 g bulk powder Ca 2 CuO 3 Put it into a ball mill jar, ...

Embodiment 3

[0039] a Ca 2 CuO 3 The preparation steps of nanosheets are:

[0040] (1) Weigh 6.28 mmol Ca(NO 3 ) 2 4H 2 O, 3.14 mmol Cu(NO 3 ) 2 ·3H 2 O and 25.12 mmol C 6 h 8 o 7 ·H 2 O was placed in a beaker, and 20 mL of diethylene glycol monobutyl ether was added for ultrasonic stirring and dissolving to obtain a stable blue solution;

[0041] (2) Put the obtained blue solution in a water bath at 100 °C and stir for 3 h at a constant temperature, then transfer it to an oil bath at 150 °C and stir for 3 h at a constant temperature to obtain a blue-white sticky lump;

[0042] (3) Transfer the obtained substance to an evaporating dish, place it on a universal electric furnace and evaporate to dryness to obtain a brown powder. The obtained brown powder was ground into a fine powder, placed in a crucible, sintered at 1200 °C for 3 h, cooled naturally and ground again to obtain a bulk powder Ca 2 CuO 3 ;

[0043] (4) Take 1 g bulk powder Ca 2 CuO 3 Put it into a ball mill ja...

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Abstract

The invention discloses a preparation method and application of a Ca2CuO3 nanosheet with ultrafast relaxation time, and belongs to the field of nonlinear optical material preparation. The preparation method comprises the steps of by taking Ca(NO3)2.4H2O, Cu(NO3)2.3H2O and C6H8O7.H2O as raw materials, adding diethylene glycol monobutyl ether, carrying out ultrasonic stirring and dissolving, sequentially carrying out water bath stirring and oil bath stirring, drying by distillation, grinding the obtained substance into fine powder, sintering to obtain blocky powder Ca2CuO3, and finally adding ethanol into the obtained blocky powder Ca2CuO3, and carrying out ball milling to obtain a suspension containing the Ca2CuO3 nanosheet. The preparation process is simple, the operation controllability is high, the thickness size of the obtained product is small, and tests show that the obtained Ca2CuO3 nanosheet has a large third-order nonlinear coefficient and ultrafast carrier relaxation time, and has great significance for the development of photonics and optoelectronics.

Description

technical field [0001] The invention belongs to the field of nonlinear optical material preparation, in particular to a Ca with ultrafast relaxation time 2 CuO 3 Preparation and application of nanosheets. Background technique [0002] Emerging technologies continue to emerge, gradually improving people's lives. Technologies in national defense technology, industrial applications, and living facilities all have contributions from optoelectronic devices, such as field effect transistors, saturable absorbers, optoelectronic modulators, etc., and optoelectronic materials are the main factors that dominate the performance of these devices. The application of optoelectronic materials has enabled various currently widely used photonic devices (such as pulsed lasers, optical switches, optical modulators, photodetectors, and optical waveguide devices). However, there are still certain requirements for the relevant performance of optoelectronic materials, such as fast carrier mobil...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01G3/00B82Y30/00B82Y40/00
CPCC01G3/00B82Y30/00B82Y40/00C01P2002/80C01P2002/82C01P2002/72C01P2004/04C01P2004/20C01P2006/60
Inventor 郑晶莹吴文圣郝瑞娴陈奇俤詹红兵
Owner FUZHOU UNIV
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