Subject and object compounded multi-photon polarization laser material based on metal-organic framework and preparation method of subject and object compounded multi-photon polarization laser material

A metal-organic framework and laser material technology, 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: 2016-03-23
浙江富昇科技有限公司
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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 su

Method used

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  • Subject and object compounded multi-photon polarization laser material based on metal-organic framework and preparation method of subject and object compounded multi-photon polarization laser material
  • Subject and object compounded multi-photon polarization laser material based on metal-organic framework and preparation method of subject and object compounded multi-photon polarization laser material
  • Subject and object compounded multi-photon polarization laser material based on metal-organic framework and preparation method of subject and object compounded multi-photon polarization laser material

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preparation example 1

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

[0028] (1) 4-Bromo-2-nitrobenzaldehyde (2.3g), 3,3-diethoxy ethyl propionate (4.85ml), stannous dichloride dihydrate (9.05g), ethanol (50ml) ) was added to the three-necked flask, the oil bath was 90° C., and the reaction solution was stirred for 4 hours (tested by thin plate chromatography), and the reaction solution was concentrated with a rotary evaporator until it was viscous. The viscous substance was dissolved in ethyl acetate, stirred and added excess sodium carbonate solution, the organic layer was separated by filtration and repeatedly washed with brine, then dried by adding anhydrous magnesium sulfate, the organic phase was collected by filtration and evaporated to dryness, and the ethyl acetate was recrystallized. Purification to give (7-bromo)quinolinyl-3-carboxylic acid ethyl ester. 1 HNMR (500MHz, CDCl 3 , δppm): 1.47(t, 3H), 4.48(q, 2H), 7.74(d, 1H), ...

preparation example 2

[0031] Preparation example 2: A multiphoton polarized laser material based on metal-organic framework host-guest recombination

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

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

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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, in particular to a multiphoton polarized laser material based on host-guest type compounding of metal organic framework 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; The structural information of scatterers (such as information on lesions in biological tissues, etc.) can be obtained by measuring the polarization state of scattered light, which is difficult for 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, the multiphoton pump frequency up-conversion laser has more advantages than the frequency...

Claims

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Application Information

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IPC IPC(8): C09K11/06C07F3/06H01S3/16
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
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