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Preparation method and application of TiO2/ionic liquid hybridized n-type polyaniline film

A polyaniline film and ionic liquid technology, applied in photosensitive devices, electrolytic capacitors, photovoltaic power generation, etc., can solve the problems of poor electronic transmission function of polyaniline, and achieve the effect of improved electron transmission capacity and uniform coverage.

Active Publication Date: 2020-01-21
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to solve the problem that the existing polyaniline is doped with protons, showing p-type conductivity, and the electron-withdrawing characteristics of its delocalized π bonds make polyaniline show hole conduction, resulting in the electron transport function of polyaniline poor problem, while providing a TiO 2 Preparation method of n-type polyaniline film hybridized with ionic liquid

Method used

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  • Preparation method and application of TiO2/ionic liquid hybridized n-type polyaniline film
  • Preparation method and application of TiO2/ionic liquid hybridized n-type polyaniline film
  • Preparation method and application of TiO2/ionic liquid hybridized n-type polyaniline film

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specific Embodiment approach 1

[0022] Specific embodiment one: this embodiment is a kind of TiO 2 The preparation method of the n-type polyaniline film of ionic liquid hybridization is to be completed in the following steps:

[0023] 1. Under airtight conditions, the titanium tetrachloride aqueous solution is stirred under an ice-water bath to obtain a Ti precursor solution;

[0024] 2. Immerse the conductive glass substrate / ionic liquid-doped n-type polyaniline film into the Ti precursor solution, and then react in the Ti precursor solution to obtain a polyaniline composite film layer on the surface of the conductive glass substrate; use distilled water on the surface containing polyaniline The conductive glass substrate of the aniline composite film layer is cleaned, and finally dried with nitrogen;

[0025] 3. Put the dry conductive glass substrate with polyaniline composite film layer on the surface into the tube furnace, raise the temperature of the tube furnace from room temperature to 200°C~250°C, a...

specific Embodiment approach 2

[0026] Specific embodiment 2: The difference between this embodiment and specific embodiment 1 is: in step 1, under airtight conditions, the titanium tetrachloride aqueous solution is stirred for 1 h in an ice-water bath and at a stirring speed of 50r / min to 80r / min. ~3h, Ti precursor solution was obtained. Other steps are the same as in the first embodiment.

specific Embodiment approach 3

[0027] Embodiment 3: This embodiment differs from Embodiment 1 or Embodiment 2 in that: the concentration of the titanium tetrachloride aqueous solution described in step 1 is 10mmol / L-30mmol / L. Other steps are the same as those in Embodiment 1 or 2.

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Abstract

The invention discloses a preparation method and application of a TiO2 / ionic liquid hybridized n-type polyaniline film, and relates to a preparation method of an n-type hybridized polyaniline film. The invention aims to solve the problem of poor electron transport function of polyaniline caused by hole conduction of polyaniline due to proton doping and p-type conductivity of polyaniline and electron withdrawing action characteristics of delocalized pi bonds of polyaniline in the prior art. The method comprises the following steps: 1, preparing a Ti precursor solution; 2, preparing a polyaniline composite film layer on the surface of the conductive glass substrate; 3, performing calcining and annealing at a constant temperature to obtain the TiO2 / ionic liquid hybridized n-type polyaniline film on the surface of the conductive glass substrate. The TiO2 / ionic liquid hybridized n-type polyaniline thin film prepared by the method has the transmittance of over 90%, and the light absorption of a solar cell can be ensured to the greatest extent. According to the invention, the TiO2 / ionic liquid hybrid n-type polyaniline film can be obtained.

Description

technical field [0001] The invention relates to a preparation method of an n-type hybrid polyaniline film. Background technique [0002] In recent years, with the increase of people's demand for energy and the reduction of fossil fuel reserves, the development of new energy sources with abundant sources and green environmental protection has become one of the important scientific research topics. As an inexhaustible natural energy source, solar energy has attracted worldwide attention, among which solar cells can directly convert solar energy into electrical energy, which has become a research hotspot in the utilization of solar energy. [0003] Quantum dot sensitized solar cell (QDSC) is a new type of solar cell developed based on dye-sensitized system, which has the following advantages: 1. Adjustable band gap and high photostability; 2. Exciton multiplication effect; 3. Large extinction coefficient and intrinsic dipole moment promote the separation of electrons and holes...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01G9/20H01G9/042
CPCH01G9/2031Y02E10/542
Inventor 姜兆华李东琦姚忠平
Owner HARBIN INST OF TECH