Method for preparing quantum rod/ polymer fiber membrane by using electrostatic spinning technology

A technology of electrospinning and preparing polymers, which is applied in the field of optical materials, can solve the problems of complex operation, poor controllability, cumbersome process, etc., and achieve the effect of simple experimental equipment, wide applicability, and easy operation

Active Publication Date: 2017-01-04
SOUTH UNIVERSITY OF SCIENCE AND TECHNOLOGY OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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 ro

Method used

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  • Method for preparing quantum rod/ polymer fiber membrane by using electrostatic spinning technology
  • Method for preparing quantum rod/ polymer fiber membrane by using electrostatic spinning technology
  • Method for preparing quantum rod/ polymer fiber membrane by using electrostatic spinning technology

Examples

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preparation example Construction

[0077] The specific embodiment of the present invention provides a method for preparing a quantum rod / polymer fiber membrane. The method includes the following steps:

[0078] (1) Prepare quantum rod solution;

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

[0080] (3) Add the electrospinning precursor solution prepared in step (2) to the electrospinning device, adjust the generator voltage and the receiving distance, and perform electrospinning to obtain a quantum rod / polymer fiber membrane.

Embodiment 1

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

[0084] (A) Separately dissolve Se powder and S powder in tri-n-octyl phosphine (TOP), heat and stir at 100°C until the solution becomes transparent, and prepare a Se-TOP solution with a concentration of 2.5 mmol / 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-octyl phosphine oxide (TOPO), heat and stir at 350℃ until CdO is completely dissolved and transparent, and then quickly add 0.75mLTOP and step (a ) The prepared 0.3mL Se-TOP solution is reacted, and after the reaction is completed, the entire heating device is turned off to cool the solution to room temperature to obtain a CdSe core solution;

[0086] (C) Centrifugally purify the CdSe core solution with chloroform and ethanol system for 2 to 3 times, and disperse it into the TOP solution to form a CdS...

Embodiment 2

[0089] This embodiment provides a method for preparing a CdSe / CdS quantum rod solution, except that in step (a), it is stirred at 50°C to prepare a Se-TOP solution with a concentration of 2 mmol / mL and a concentration of 0.5 mmol / mL The heating and stirring temperature in step (b) is 300°C; the heating and stirring temperature in step (d) is 260°C, and 0.3mL of TOP and 0.3mL of S-TOP prepared in step (a) The TOP solution and 0.2 mL of the CdSe-TOP solution prepared in step (c) were reacted at 300° C. for 15 minutes, and the amount of other materials and the preparation method were the same as in Example 1, and finally a CdSe / CdS quantum rod solution was obtained.

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Abstract

The invention provides a method for preparing a quantum rod/ polymer fiber membrane by using an electrostatic spinning technology. The method comprises the following steps: (1) preparing a quantum rod solution; (2) preparing a polymer solution, and adding the quantum rod solution prepared in step (1) into the polymer solution to form an electrostatic spinning precursor solution having a quantum rod volume concentration of 5-80%; and (3) adding the electrostatic spinning precursor solution into an electrostatic spinning device, adjusting the voltage of a generator and the receiving distance, and then performing electrostatic spinning, thus obtaining the quantum rod/ polymer fiber membrane. By adjusting the concentration of the quantum rod solution and parameters in the electrostatic spinning process, directional arrangement of quantum rods in the electrostatic spinning process is realized, and the quantum rod/ polymer fiber membrane with high polarization performance is thus obtained.

Description

Technical field [0001] The invention belongs to the field of optical materials, and relates to a method for quantum rod / polymer fiber membranes, in particular to a method for preparing quantum rods / polymer fiber membranes by using electrostatic spinning 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 luminescence characteristics, and can be controlled and adjusted 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 long 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. It can emit polarization parallel to its long axis ...

Claims

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Application Information

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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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