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Multiphoton polarization laser material based on metal-organic framework host-guest recombination and its preparation method

A technology of metal-organic frameworks and laser materials, applied in the direction of 2/12 organic compounds without C-metal bonds, luminescent materials, zinc organic compounds, etc., to achieve high fluorescence quantum efficiency, high concentration, and high polarization anisotropy Effect

Active Publication Date: 2017-06-16
浙江富昇科技有限公司
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

In order to realize such a laser, the gain medium not only needs to have a high multiphoton absorption cross-section and lasing efficiency, but more importantly, can be assembled into such a suitable solid-state resonator—without significant optical quenching. It has high gain concentration and high orientation, but no related laser materials have been discovered so far

Method used

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  • Multiphoton polarization laser material based on metal-organic framework host-guest recombination and its preparation method
  • Multiphoton polarization laser material based on metal-organic framework host-guest recombination and its preparation method
  • Multiphoton polarization laser material based on metal-organic framework host-guest recombination and its preparation method

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preparation example 1

[0027] Preparation Example 1: Multidentate organic ligand 7-(4-carboxyphenyl)-3-carboxy-quinoline (H 2 CPQC)

[0028] (1) Mix 4-bromo-2-nitrobenzaldehyde (2.3g), ethyl 3,3-diethoxypropionate (4.85ml), stannous dichloride dihydrate (9.05g), ethanol (50ml ) into a three-necked flask, oil bath at 90°C, and stirred for 4 hours (thin-plate chromatography test), and the reaction solution was concentrated with a rotary evaporator until it was viscous. Dissolve the viscous substance in ethyl acetate, stir and add excess sodium carbonate solution, filter and separate the organic layer and wash it repeatedly with brine, then add anhydrous magnesium sulfate to dry, collect the organic phase by filtration and evaporate the solvent, and recrystallize from ethyl acetate Purification afforded ethyl (7-bromo)quinolyl-3-carboxylate. 1 H NMR (500MHz, CDCl 3 , δppm): 1.47(t, 3H), 4.48(q, 2H), 7.74(d, 1H), 7.81(d, 1H), 8.38(s, 1H), 8.83(s, 1H), 9.46(s, 1H);

[0029] (2) Ethyl (7-bromo)quinol...

preparation example 2

[0031] Preparation Example 2: A Multiphoton Polarized Laser Material Based on Metal-Organic Framework Host-Guest Recombination

[0032] The 7-(4-carboxyphenyl)-3-carboxy-quinoline (25 mg) obtained in the above step (3), zinc nitrate hexahydrate (50 mg), and the dye (E)-4-(4-(dimethyl Amino)styryl)-1-picoline iodide (DMASMI, 11mg) was dissolved together in a mixed solvent of 5mL N,N-dimethylformamide and 1mL acetonitrile, and 25μL of 50±0.5% fluoroboric acid solution was added to install The reaction kettle was placed in an oven at 100°C for 24 hours, and after taking it out, it was washed repeatedly with N,N-dimethylformamide to obtain the multiphoton polarized laser material based on metal-organic framework host-guest recombination.

[0033] figure 1 The optical microscope image (a), the schematic diagram of the single crystal structure (b) and the XRD pattern (c) of the multiphoton polarized laser material of this metal-organic framework host-guest composite, it can be seen...

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Abstract

The invention discloses a subject and object compounded multi-photon polarization laser material based on a metal-organic framework and a preparation method of the subject and object compounded multi-photon polarization laser material. The material comprises a subject and an object, wherein the subject adopts a metal-organic framework material, adopts a three-dimensional net structure constructed by zinc ions and a multi-tooth organic ligand 7-(4-carboxyphenyl)-3-carboxy-quinoline through a coordination bond and has a one-dimensional channel; the object adopts dye ions. By means of the chemical compatibility of the metal-organic framework material as the subject with a dye as the object and the efficient confinement function of the one-dimensional channel of the metal-organic framework material, the prepared subject and object compounded material can obtain high-concentration, uniform and highly oriented dye loading while keeping higher fluorescence quantum efficiency and can realize conversion of the laser wavelength from infrared frequency to the frequency in a visual range. Besides, light emission of the multi-photon polarization laser material has extremely high polarization anisotropy, and the degree of polarization is higher than 99.9%.

Description

technical field [0001] The invention relates to many fields such as microcavity laser, nonlinear optics, physical optics and biophotonics, and in particular relates to a multi-photon polarization laser material based on metal organic framework host-guest compound and a preparation method thereof. Background technique [0002] Imaging with polarized light can greatly reduce the influence of multiple scattered light, thereby effectively improving the contrast and resolution of imaging; Structural information of scatterers (such as lesion information in biological tissues, etc.) can be obtained by measuring the polarization state of scattered light, which is difficult to achieve with ordinary natural light imaging. These advantages have attracted the attention of a large number of researchers in the field of polarization imaging. [0003] Since there is no need for harsh phase matching conditions, multi-photon pump frequency up-conversion lasers have more advantages than frequ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07F3/06
CPCC07F3/003C09K11/06C09K2211/1007C09K2211/1029C09K2211/188H01S3/16
Inventor 钱国栋何桦浚郁建灿崔元靖杨雨王智宇
Owner 浙江富昇科技有限公司