A method for preparing quantum rod/polymer fiber membrane by electrospinning technology

An electrospinning, quantum rod technology, applied in the field of optical materials, can solve the problems of poor controllability, complicated operation, limited degree of orientation and arrangement of quantum rod films, etc.

Active Publication Date: 2019-09-24
SOUTH UNIVERSITY OF SCIENCE AND TECHNOLOGY OF CHINA
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0012] Aiming at the existing problems of complex operation, cumbersome process, poor controllability, and limited alignment degree of the prepared quantum rod film in the existing method for preparing quantum rod film, the present invention provides a method for preparing quantum rod / Polymer Fiber Membrane Method

Method used

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  • A method for preparing quantum rod/polymer fiber membrane by electrospinning technology
  • A method for preparing quantum rod/polymer fiber membrane by electrospinning technology
  • A method for preparing quantum rod/polymer fiber membrane by electrospinning technology

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preparation example Construction

[0077] The specific embodiment part of the present invention provides a kind of preparation method of quantum rod / polymer fiber film, and described method comprises the following steps:

[0078] (1) Prepare quantum rod solution;

[0079] (2) Prepare a polymer solution, adding the quantum rod solution prepared in step (1) into the polymer solution to form a quantum rod volume concentration of 5% to 80% electrospinning precursor solution;

[0080] (3) Add the electrospinning precursor solution prepared in step (2) into the electrospinning device, adjust the voltage of the generator and the receiving distance, and perform electrospinning to prepare quantum rods / polymer fiber membranes.

Embodiment 1

[0083] This embodiment provides a method for configuring a CdSe / CdS quantum rod solution, the method comprising the following steps:

[0084] (a) Dissolve Se powder and S powder in tri-n-octylphosphine (TOP) respectively, heat and stir at 100°C until the solution becomes transparent, and prepare a Se-TOP solution with a concentration of 2.5mmol / mL and a concentration of 1mmol / mL S-TOP solution;

[0085] (b) Mix 26mg of CdO with 112mg of tetradecyl phosphoric acid (TDPA) and 1.5g of tri-n-octylphosphine oxide (TOPO), heat and stir at 350°C until CdO is completely dissolved and become transparent, then quickly add 0.75mL of TOP and step (a ) prepared 0.3mL of Se-TOP solution for reaction, after the reaction was completed, turn off the entire heating device to cool the solution to room temperature to obtain a nuclear solution of CdSe;

[0086] (c) The nuclear solution of CdSe was purified by centrifugation with chloroform and ethanol for 2 to 3 times, and dispersed into the TOP ...

Embodiment 2

[0089] This example provides a method for configuring a CdSe / CdS quantum rod solution, except for stirring at 50°C in step (a) to prepare a Se-TOP solution with a concentration of 2mmol / mL and a concentration of 0.5mmol / mL S-TOP solution; in step (b), the temperature of heating and stirring is 300°C; in step (d), the temperature of heating and stirring is 260°C, and 0.3mL of TOP and 0.3mL of S-TOP prepared in step (a) are quickly added in turn The TOP solution and 0.2mL of the CdSe-TOP solution prepared in step (c) were reacted at 300°C for 15 minutes, and the dosage and preparation method of other materials were the same as those in Example 1 to finally obtain a CdSe / CdS quantum rod solution.

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Abstract

The invention provides a method for preparing a quantum rod / polymer fiber film by electrospinning technology, the method comprising the following steps: (1) preparing a quantum rod solution; (2) preparing a polymer solution, and preparing the obtained quantum rod The quantum rod solution is added to the polymer solution to form a quantum rod volume concentration of 5% to 80% electrospinning precursor solution; (3) adding the electrospinning precursor solution to the electrospinning device, after adjusting the voltage of the generator and the receiving distance, Electrospinning is carried out to prepare quantum rod / polymer fiber membrane. The method of the invention realizes the directional arrangement of the quantum rods in the electrospinning process by adjusting the concentration of the quantum rod solution and the parameters in the electrospinning process, and then prepares the quantum rod / polymer fiber film with high polarization performance.

Description

technical field [0001] The invention belongs to the field of optical materials, and relates to a quantum rod / polymer fiber film method, in particular to a method for preparing a quantum rod / polymer fiber film by using an electrospinning technology. Background technique [0002] The quantum rod material is a crystalline material with a diameter of several nanometers and a length of 10-100 nm. Quantum rods have optical properties similar to quantum dots, such as: absorption and light-emitting properties, and the control and adjustment of light waves can be realized by adjusting the size and type of quantum rods; the emission wavelength of quantum rods is adjustable and can cover the entire Visible light range. [0003] The elongated shape of the quantum rod makes it have optical characteristics that quantum dots do not have. The most special optical characteristic of the quantum rod is that it has the characteristic of emitting polarized light, which can emit polarization par...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D04H1/728D01D5/00D01F1/10
CPCD01D5/0076D01D5/0092D01F1/10D04H1/728C09K11/565C09K11/623C09K11/02C09K11/883D01D5/003D01F6/20D01F6/18D01F6/16B82Y40/00D01D1/02D01D5/0038B82Y20/00
Inventor 王恺周子明秦静温佐良李尚郝俊杰陈威孙小卫
Owner SOUTH UNIVERSITY OF SCIENCE AND TECHNOLOGY OF CHINA
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