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Organic photo-thermoelectric composite material, preparation method and application thereof, photo-thermoelectric battery and optical delay control system

A composite material and photothermoelectric technology, which is applied in the fields of thermoelectric device junction lead-out material, thermoelectric device manufacturing/processing, photovoltaic power generation, etc. and thermoelectric conversion performance, the effect of improving capacity and efficiency

Inactive Publication Date: 2019-09-27
SOUTHWEST JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Disadvantages of the existing photothermoelectric conversion technology: (1) In the prior art to realize photoelectricity, the materials for the thermoelectric conversion part are scarce, expensive, and have relatively environmentally toxic inorganic materials; (2) the existing photothermoelectric The implementation of the conversion system is complex in equipment structure, high in cost, and not portable
At the same time, all photothermoelectric conversion schemes separate photothermal and thermoelectric conversion. This process involves multiple conversions and transmissions of light energy, thermal energy, and electrical energy between different devices, and will be lost during the conversion and transmission process. A large amount of energy, which ultimately results in inefficient energy conversion
(3) The traditional photothermoelectric conversion system contains many inorganic and metallic materials, and the material itself has low toughness and flexibility, which makes the designed photothermoelectric conversion module unable to be miniaturized and miniaturized, and cannot be applied to wearable and flexible electronic devices field

Method used

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  • Organic photo-thermoelectric composite material, preparation method and application thereof, photo-thermoelectric battery and optical delay control system
  • Organic photo-thermoelectric composite material, preparation method and application thereof, photo-thermoelectric battery and optical delay control system
  • Organic photo-thermoelectric composite material, preparation method and application thereof, photo-thermoelectric battery and optical delay control system

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preparation example Construction

[0030] The invention provides a method for preparing an organic photothermoelectric composite material, comprising the following steps:

[0031] S1, preparation of reaction mixture

[0032] The carbon nanotubes, dopant solution and polymerized monomers are mixed to form a reaction mixture. Before the initiator is mixed, other components are mixed, so that the polymerized monomers are supported on the carbon nanotubes, and the dopant can be doped in the organic polymer during the polymerization process.

[0033] Specifically, the organic polymer is selected from any one or more of polypyrrole and its derivatives, polythiophene and its derivatives, polyaniline and its derivatives, and polyacetylene; that is, the polymerization monomer is pyrrole, Any one or more of thiophene, aniline and acetylene. The dopant is selected from p-toluenesulfonic acid, sodium p-toluenesulfonate, p-hydroxybenzenesulfonic acid, dodecylbenzenesulfonic acid, sodium dodecylbenzenesulfonate, β-naphthal...

Embodiment 1

[0056] This embodiment provides a method for preparing an organic photothermoelectric composite material, which includes the following steps:

[0057] Helical carbon nanotubes (HCNTs) were added to 0.2mol / L sodium dodecylbenzenesulfonate (SDBS) solution, stirred and dispersed for 30min, and treated in a 100W cell disruptor for 1h. Then add pyrrole monomer and mix evenly, place in a 0 degree water bath, stir and pre-cool for 1 hour.

[0058] Add ferric chloride solution to the pre-cooled reaction mixture to initiate polymerization, the polymerization temperature is 0 degrees Celsius, and the polymerization time is 8 hours. The obtained product was washed with deionized water and absolute ethanol, and freeze-dried at -50°C for 48 hours to obtain a composite material. Wherein, the molar ratio of polymer monomer, dopant and initiator is 1:0.1:1.5; the mass ratio of carbon nanotubes and polymer monomer is 1:30.

[0059] The prepared composite material was cold-pressed at 10 MPa i...

Embodiment 2

[0061] This embodiment provides a method for preparing an organic photothermoelectric composite material, which includes the following steps:

[0062] Helical carbon nanotubes (HCNTs) were added to 0.2 mol / L p-toluenesulfonic acid solution, stirred and dispersed for 30 min, and treated in a 100W cell disruptor for 0.5 h. Then add pyrrole monomer and mix evenly, place in 4°C water bath and stir for pre-cooling for 2 hours.

[0063] Sodium dichromate solution was added to the pre-cooled reaction mixture to initiate polymerization, the polymerization temperature was 4 degrees Celsius, and the polymerization time was 5 hours. The obtained product was washed with deionized water and absolute ethanol, and freeze-dried at -40°C for 72 hours to obtain a composite material. Wherein, the molar ratio of polymer monomer, dopant and initiator is 1:0.2:1.8; the mass ratio of carbon nanotubes and polymer monomer is 1:50.

[0064] The prepared composite material was cold-pressed at 8MPa in ...

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Abstract

The invention discloses an organic photo-thermoelectric composite material, a preparation method and application thereof, a photo-thermoelectric battery and an optical delay control system, and relates to the technical field of battery materials. The organic photo-thermoelectric composite material comprises a carbon nano tube and an organic polymer loaded on the carbon nano tube, wherein the organic polymer is doped with a dopant. The preparation method of the organic photo-thermoelectric composite material comprises the following steps: mixing the carbon nano tube, the dopant solution and a polymerization monomer to form a reaction mixed solution; and mixing the reaction mixed solution with an initiator, and performing polymerizing. The composite material has good photo-thermal and thermoelectric conversion performances, and compared with a traditional photo-thermal-thermoelectric conversion system, the photo-thermal-thermoelectric conversion capability and efficiency are greatly improved. The photo-thermoelectric battery is prepared from the composite material, and the conversion of photo-thermoelectricity can be more efficiently realized. A control system is formed by utilizing the photo-thermoelectric battery, the delay control is realized by controlling illumination, and the control system has the characteristics of short history list, stable operation, high sensitivity and the like.

Description

technical field [0001] The invention relates to the technical field of battery materials, and in particular to an organic photothermoelectric composite material, a preparation method and application thereof, a photothermoelectric battery and a light delay control system. Background technique [0002] There are three main types of existing photothermoelectric conversion technologies: (1) Converge sunlight into a solar collector through a large-scale array of bubble pots or butterfly mirrors, and heat the heat transfer device by concentrating the heat in the sunlight into a heat collector. Heat medium, and then the heat transfer medium transfers heat to water to form water vapor to directly or indirectly drive the steam generator set to generate electricity. Through the above process, the energy conversion of photothermoelectricity is realized. (2) Combining inorganic photovoltaic power generation materials and inorganic thermoelectric materials into multilayer composite mate...

Claims

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Application Information

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IPC IPC(8): H01L51/42H01L51/46H01L51/48H01L35/24H01L35/34
CPCH10N10/856H10N10/01H10K85/113H10K85/111H10K85/221H10K30/20Y02E10/549
Inventor 王勇金鑫铮祁晓东杨静晖黄婷张楠
Owner SOUTHWEST JIAOTONG UNIV
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