Polythiophene derivative conductive film based on in-situ doping modification, and preparation method and application of polythiophene derivative conductive film

Abstract

The invention discloses a polythiophene derivative conductive film based on in-situ doping and a preparation method and application thereof, and belongs to the technical field of organic photoelectricmaterials. According to the preparation method, a gas-phase permeation technology is adopted; moCl5 is effectively used as a precursor and is circulated through gas-phase permeation; carrying out in-situ doping modification on the polythiophene derivative initial film; wherein the permeation thickness in the base material is controlled by adjusting different gas-phase permeation cycle times; thestructure controllability and stability of the prepared polythiophene derivative conductive film are ensured; the preparation method disclosed by the invention is simple in process and simple and convenient to operate; the polythiophene derivative conductive film is prepared by the preparation method disclosed by the invention; compared with the prior art, the composite material has the characteristics of excellent conductivity, controllable permeation thickness and stable material performance, and the conductivity of the modified composite material is improved by 4 orders of magnitudes than that of a matrix material, so that the composite material can be applied to various electronic devices and has good application value and industrial application prospect in the field.

Description

technical field

[0001] The invention belongs to the technical field of organic photoelectric materials, and relates to a polythiophene derivative conductive film based on in-situ doping modification and its preparation method and application. Background technique

[0002] In recent years, conductive polymers have been widely used in various electronic devices due to their high electrical conductivity at room temperature, good flexibility, easy synthesis, abundant raw material sources, and no pollution to the environment. The key to the efficiency and service life of electronic devices is to prepare a highly conductive polymer film with controllable doping, stable structure and electrical properties. At present, more researched conductive polymers include: polyaniline, polypyrrole and polythiophene. Due to their high hole mobility and environmental stability, polythiophene-based conductive polymers are a research hotspot for researchers at this stage.

[0003] At present, t...

Examples

Embodiment 1

[0037] The invention discloses a method for preparing a polythiophene derivative conductive film based on in-situ doping, which comprises the following steps:

[0038] ①Use deionized water, acetone and alcohol to ultrasonically clean the insulating glass sheet (1.5cm×1.5cm) several times, then let it dry for later use;

[0039] ②In the process of preparing the initial film, weigh 30 mg of PBTTT (poly(2,5-bis(3-tetradecylthiophen-2-yl)thieno[3,2-b]thiophene) with an electronic balance, and then Dissolve it in 1ml of 1,2-dichlorobenzene (DCB) to obtain a uniform solution, drop-coat the resulting solution on the prepared glass sheet, and then bake it at 70°C for 12 hours to prepare the initial PBTTT film;

[0040] ③ Finally, put the prepared PBTTT initial film into the reaction chamber of the ALD equipment, and use MoCl 5 Perform gas phase infiltration cycle to achieve in-situ doping modification, one infiltration cycle includes (precursor MoCl 5 Pulse 5s into the reaction cham...

Embodiment 2

[0044] The invention discloses a method for preparing a polythiophene derivative conductive film based on in-situ doping, which comprises the following steps:

[0045] ①Use deionized water, acetone and alcohol to ultrasonically clean the insulating glass sheet (1.5cm×1.5cm) several times, then let it dry for later use;

[0046] ②In the process of preparing the initial film, weigh 30 mg of PBTTT with an electronic balance, and then dissolve it in 1 ml of chloroform (CHCl 3 ) to obtain a uniform solution, drop-coat the resulting solution on the prepared glass sheet, and then bake at 70°C for 12h to prepare the initial PBTTT film;

[0047] ③ Finally, put the prepared PBTTT initial film into the reaction chamber of the ALD equipment, and use MoCl 5 Perform gas phase infiltration cycle to achieve in-situ doping modification, one infiltration cycle includes (precursor MoCl 5 Pulse 5s into the reaction chamber, expose the polymer substrate to the precursor for 120s, and finally use...

Embodiment 3

[0051] The invention discloses a method for preparing a polythiophene derivative conductive film based on in-situ doping, which comprises the following steps:

[0052] ①Use deionized water, acetone and alcohol to ultrasonically clean the insulating glass sheet (1.5cm×1.5cm) several times, then let it dry for later use;

[0053] ②In the process of preparing the initial film, weigh 27mg of PBTTT with an electronic balance, and then dissolve it in 1ml of chloroform (CHCl 3 ) to obtain a uniform solution, drop-coat the resulting solution on the prepared glass sheet, and then bake at 70°C for 12h to prepare the initial PBTTT film;

[0054] ③ Finally, put the prepared PBTTT initial film into the reaction chamber of the ALD equipment, and use MoCl 5 Perform gas phase infiltration cycle to achieve in-situ doping modification, one infiltration cycle includes (precursor MoCl 5 Pulse 3s into the reaction chamber, expose the polymer substrate to the precursor for 90s, and finally use N ...

technical field

[0001] The invention belongs to the technical field of organic photoelectric materials, and relates to a polythiophene derivative conductive film based on in-situ doping modification and its preparation method and application. Background technique

[0002] In recent years, conductive polymers have been widely used in various electronic devices due to their high electrical conductivity at room temperature, good flexibility, easy synthesis, abundant raw material sources, and no pollution to the environment. The key to the efficiency and service life of electronic devices is to prepare a highly conductive polymer film with controllable doping, stable structure and electrical properties. At present, more researched conductive polymers include: polyaniline, polypyrrole and polythiophene. Due to their high hole mobility and environmental stability, polythiophene-based conductive polymers are a research hotspot for researchers at this stage.

[0003] At present, t...

Examples

Embodiment 1

[0037] The invention discloses a method for preparing a polythiophene derivative conductive film based on in-situ doping, which comprises the following steps:

[0038] ①Use deionized water, acetone and alcohol to ultrasonically clean the insulating glass sheet (1.5cm×1.5cm) several times, then let it dry for later use;

[0039] ②In the process of preparing the initial film, weigh 30 mg of PBTTT (poly(2,5-bis(3-tetradecylthiophen-2-yl)thieno[3,2-b]thiophene) with an electronic balance, and then Dissolve it in 1ml of 1,2-dichlorobenzene (DCB) to obtain a uniform solution, drop-coat the resulting solution on the prepared glass sheet, and then bake it at 70°C for 12 hours to prepare the initial PBTTT film;

[0040] ③ Finally, put the prepared PBTTT initial film into the reaction chamber of the ALD equipment, and use MoCl 5 Perform gas phase infiltration cycle to achieve in-situ doping modification, one infiltration cycle includes (precursor MoCl 5 Pulse 5s into the reaction cham...

Embodiment 2

[0044] The invention discloses a method for preparing a polythiophene derivative conductive film based on in-situ doping, which comprises the following steps:

[0045] ①Use deionized water, acetone and alcohol to ultrasonically clean the insulating glass sheet (1.5cm×1.5cm) several times, then let it dry for later use;

[0046] ②In the process of preparing the initial film, weigh 30 mg of PBTTT with an electronic balance, and then dissolve it in 1 ml of chloroform (CHCl 3 ) to obtain a uniform solution, drop-coat the resulting solution on the prepared glass sheet, and then bake at 70°C for 12h to prepare the initial PBTTT film;

[0047] ③ Finally, put the prepared PBTTT initial film into the reaction chamber of the ALD equipment, and use MoCl 5 Perform gas phase infiltration cycle to achieve in-situ doping modification, one infiltration cycle includes (precursor MoCl 5 Pulse 5s into the reaction chamber, expose the polymer substrate to the precursor for 120s, and finally use...

Embodiment 3

[0051] The invention discloses a method for preparing a polythiophene derivative conductive film based on in-situ doping, which comprises the following steps:

[0052] ①Use deionized water, acetone and alcohol to ultrasonically clean the insulating glass sheet (1.5cm×1.5cm) several times, then let it dry for later use;

[0053] ②In the process of preparing the initial film, weigh 27mg of PBTTT with an electronic balance, and then dissolve it in 1ml of chloroform (CHCl 3 ) to obtain a uniform solution, drop-coat the resulting solution on the prepared glass sheet, and then bake at 70°C for 12h to prepare the initial PBTTT film;

[0054] ③ Finally, put the prepared PBTTT initial film into the reaction chamber of the ALD equipment, and use MoCl 5 Perform gas phase infiltration cycle to achieve in-situ doping modification, one infiltration cycle includes (precursor MoCl 5 Pulse 3s into the reaction chamber, expose the polymer substrate to the precursor for 90s, and finally use N ...

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