Flexible organic thermoelectric device and preparation method thereof

A thermoelectric device, an organic technology, applied in the direction of thermoelectric devices, thermoelectric device manufacturing/processing, electrical components, etc., can solve the problem of not being able to maintain the temperature difference between the heat sink end and the heat source end, hindering the large-scale application of thin-film thermoelectric batteries, and the output of thermoelectric batteries Low power and other issues, to achieve excellent industrial applicability, low manufacturing cost, and increase output power

Inactive Publication Date: 2019-03-26
SHANGHAI INST OF CERAMIC CHEM & TECH CHINESE ACAD OF SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] In addition, thin-film thermoelectric devices generally have two preparation structures, one is that the heat conduction direction is parallel to the substrate surface, this method can reduce the resistance of the film, but also improve the thermal conductivity of the device; the other is that the heat conduction direction is perpendicular to the substrate surface. The surface of the substrate can reduce the thermal conductivity of the device, but since the height difference in the vertical direction of the film is o

Method used

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  • Flexible organic thermoelectric device and preparation method thereof
  • Flexible organic thermoelectric device and preparation method thereof
  • Flexible organic thermoelectric device and preparation method thereof

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Embodiment 1）

[0043] In this embodiment, poly-3-hexylthiophene is used as a P-type material, and conductive silver paste is used as an N-type material. like figure 1 As shown, in the preparation process, a cotton thread L with a length of 30 cm and a diameter of 1 mm was first prepared, and the cotton thread L was immersed in a toluene solution of 8 mg / ml poly-3-hexylthiophene. With the slow volatilization of the solvent, the polymer Gradually adsorbed on the fiber surface of the cotton thread L. Then, the cotton thread L loaded with poly-3-hexylthiophene polymer is evenly encircled along the iron sheet F with a width of 8 mm, and the two sides of the iron sheet F are brushed with bistrifluoromethanesulfonimide iron and silver paste respectively, After standing and drying for 2 hours, remove the cotton thread L from the iron sheet F. At this time, the P-type and N-type materials on the cotton thread L are evenly spaced.

[0044] Cotton thread L loaded with P-type and N-type materials and ...

Embodiment 2）

[0047] In this embodiment, polyaniline is used as the P-type material, and conductive silver paste is used as the N-type material. like figure 1 As shown, in the preparation process, a cotton thread L with a length of 20 cm and a diameter of 1 mm was firstly prepared, and the cotton thread L was immersed in a 10 mg / ml polyaniline m-cresol solution. As the solvent volatilized slowly, the polymer gradually Adsorbed on the fiber surface of cotton thread L. Then, the polyaniline-loaded cotton thread L is evenly encircled along the iron sheet F with a width of 8 mm, and the m-cresol solution of camphorsulfonic acid and the silver paste are brushed on both sides of the iron sheet F, and left to dry for 2 hours. , Remove the cotton thread L from the iron sheet F. At this time, the P-type and N-type materials on the cotton thread L are evenly spaced.

[0048] Cotton thread L loaded with P-type and N-type materials and evenly spaced is sewn on a dense sponge with a thickness of 5 mm ...

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Abstract

The invention provides a flexible organic thermoelectric device and a preparation method thereof. The method comprises a dipping step of directly immersing a sewing thread in a conductive polymer solution, a coating step of uniformly winding the sewing thread adsorbed with a conductive polymer around an iron piece, coating two sides of the iron piece with a dopant and a silver paste to form uniformly spaced P-type and N-type thermoelectric material segments on the sewing thread, and standing until drying, and a step of sewing step of sewing the dried sewing thread to a flexible substrate withthe alternate P-type and N-type thermoelectric material segments, wherein independent structures which are electrically connected in series and thermally connected in parallel are formed between eachpair of the P-type and N-type thermoelectric material segments. According to the invention, a large film vertical distance can be obtained, therefore, the maintenance of the temperature difference between a cold end and a hot end is achieved, and the output power of the device is raised.

Description

technical field [0001] The invention relates to the technical field of organic thermoelectric devices, in particular to a flexible organic thermoelectric device and a preparation method thereof. Background technique [0002] Thermoelectric conversion technology is a technology that uses the Seebeck effect and Peltier effect of semiconductor materials to directly convert thermal energy and electrical energy. The thermoelectric conversion device does not need to use moving parts or toxic working fluids. [0003] It plays a very important role in solving the increasingly severe global energy and environmental problems, and has been developed and utilized in the utilization of industrial waste heat, solar thermal composite power generation and other fields. [0004] A thermoelectric conversion device generally consists of three parts: a heat source, a heat sink, and a thermopile. A thermopile is a series of thermoelectric pairs connected in series that convert heat energy into ...

Claims

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Application Information

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IPC IPC(8): H01L35/34H01L35/32
CPCH10N19/101H10N10/01
Inventor 瞿三寅陈立东姚琴陈艳玲
Owner SHANGHAI INST OF CERAMIC CHEM & TECH CHINESE ACAD OF SCI
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