WO2004106414A1 - Dispersionen steifkettiger, konjugierter polymere, verfahren zu deren herstellung und deren verwendung zur herstellung elektronischer bauelemente - Google Patents
Dispersionen steifkettiger, konjugierter polymere, verfahren zu deren herstellung und deren verwendung zur herstellung elektronischer bauelemente Download PDFInfo
- Publication number
- WO2004106414A1 WO2004106414A1 PCT/EP2004/004839 EP2004004839W WO2004106414A1 WO 2004106414 A1 WO2004106414 A1 WO 2004106414A1 EP 2004004839 W EP2004004839 W EP 2004004839W WO 2004106414 A1 WO2004106414 A1 WO 2004106414A1
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- WO
- WIPO (PCT)
- Prior art keywords
- polymer
- dispersion
- aqueous
- organic
- solution
- Prior art date
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- 0 CC(C)C1=NN=C(*)*1 Chemical compound CC(C)C1=NN=C(*)*1 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L79/00—Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing nitrogen with or without oxygen or carbon only, not provided for in groups C08L61/00 - C08L77/00
- C08L79/04—Polycondensates having nitrogen-containing heterocyclic rings in the main chain; Polyhydrazides; Polyamide acids or similar polyimide precursors
- C08L79/06—Polyhydrazides; Polytriazoles; Polyamino-triazoles; Polyoxadiazoles
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/02—Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques
- C08J3/03—Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques in aqueous media
- C08J3/07—Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques in aqueous media from polymer solutions
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L79/00—Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing nitrogen with or without oxygen or carbon only, not provided for in groups C08L61/00 - C08L77/00
- C08L79/04—Polycondensates having nitrogen-containing heterocyclic rings in the main chain; Polyhydrazides; Polyamide acids or similar polyimide precursors
Definitions
- the present invention relates to dispersions of rigid-chain, conjugated polymers, a process for their preparation and their use for the production of electronic components.
- the invention relates to the production of processable dispersions of such polymers, the particle size of which is in the nanometer range and which is used in electronic components, e.g. Field effect transistors, organic light emitting diodes or photovoltaic cells, can be used as active materials.
- electronic components e.g. Field effect transistors, organic light emitting diodes or photovoltaic cells
- Rigid-chain, conjugated polymers are of particular interest because of their semiconducting properties as active materials for electronic components.
- aromatic heterocyclic conductor polymers e.g. Poly (benzobisimidazobenzo-phenanthroline) (BBL); Polyquinolines, polybenzthiazoles, polybenzimidazoles, polyheterodiazoles.
- Such polymers which ideally have rod shape, are normally completely insoluble in conventional organic solvents, as well as in water and in aqueous solvents or solvent mixtures.
- their interesting mechanical and electrical properties which derive from the almost parallel arrangement of the rod-shaped, conjugated molecules in the solid, such as their high thermal stability, good mechanical strength and their semiconducting character, they have so far not been able to establish themselves for technically relevant products.
- the stiff-chain BBL was dissolved in methanesulfonic acid in order to produce thin layers from it by spin-coating, and only by complicated washing processes (treatment with 10% triethylamine solution in ethanoi, washing with water and drying in vacuo at 60 ° C) then use the active layer obtained. This procedure is still practical on a laboratory scale, but not for technical processes.
- a solubility of the stiff-chain conjugated polymers described above in conventional organic solvents, such as chloroform, toluene, xylene and others, can possibly be achieved by lateral substitution with, for example, alkyl, alkoxy or dialkylamino groups.
- lateral substitution with, for example, alkyl, alkoxy or dialkylamino groups.
- substitution is only possible to a limited extent (eg in the case of BBL). Lateral substitutions can also adversely affect electronic properties. Solubilizing a rigid-chain conjugated polymer by introducing lateral substituents into the polymer structure is therefore generally not a practical or advantageous way of producing processable solutions or dispersions of these materials.
- the invention was therefore based on the object of providing a process by which rigid-chain conjugated polymers which are insoluble in organic solvents can be converted into a form in which they can be practically processed and which are particularly suitable for producing thin films thereof Polymers are suitable.
- a method for producing a dispersion of a rigidly chain, conjugated polymer which is insoluble in organic solvents in an aqueous or organic or aqueous-organic dispersion medium comprising the steps: (a) preparing a solution of the polymer in a strong o Acid or in a liquid mixture containing a Lewis acid; and (b) introducing the solution prepared in step a) into an aqueous surfactant solution so that a dispersion of the polymer is formed.
- this provides a dispersion of a stiffly chain, conjugated polymer which is insoluble in organic solvents in an aqueous or organic or aqueous-organic dispersion medium, the size of the dispersed polymer particles being in the range from 10 to 800 nm.
- the invention further encompasses the use of such a dispersion for producing a thin film of a rigid-chain conjugated polymer and for producing an electronic component.
- Fig. 1 shows a scanning electronic image of a thin film of BBL particles on Al (BBL particles in 0.1% surfactant / water solution, solids content 1%).
- Fig. 2 shows a scanning electronic image of a thin film of BBL particles on Al (BBL particles in 1% surfactant / water solution, solids content 1%).
- FIG. 3 shows a scanning electronic image of a thin film of BBL particles on Al (BBL particles in 0.1% surfactant / THF solution, solids content 1%).
- Fig. 4 shows a recording of a film as shown in Fig. 3 in an enlarged view.
- 5 shows the characteristics of an organic field effect transistor (OFET) which was produced using a dispersion of poly (benzobisimidazobenzophenanthroline) (BBL) particles according to the invention.
- OFET organic field effect transistor
- the polymers used in the process according to the invention are rigid-chain, conjugated polymers which are insoluble in organic solvents, in particular in customary organic solvents, such as chloroform, toluene or xylene.
- the rigid-chain, conjugated polymers which can be used in the process according to the invention include, in particular, aromatic heterocyclic conductor polymers, polyquinolines, polybenzothiazoles, polybenzimidazoles, polyheterodiazoles and mixtures thereof.
- R ' represents a divalent aromatic or heteroaromatic radical
- R represents an aryl or aralkyl group
- X is N-alkyl, N-aryl, O, S or SO 2
- Y is independently NH, N-alkyl, N-aryl, O or S.
- the process according to the invention is particularly suitable for producing dispersions of poly (benzobisimidazbenzo-phenanthroline) (BBL), the structure of which is shown in the formula (IV).
- the polymers used in the process according to the invention typically have intrinsic viscosities in methanesulfonic acid of 1.3 to 6 dl / g, preferably 1.5 to 3 dl / g, at room temperature.
- the dispersion medium of the dispersions produced by the process according to the invention is an aqueous or organic or aqueous-organic dispersion medium.
- the dispersion medium consists essentially of water or an organic solvent, such as e.g. Chloroform, toluene, xylene, tetrahydrofuran (THF) or cyclohexanol.
- the dispersion medium can also consist of a mixture of water and a water-miscible organic solvent.
- the dispersion medium is essentially free of substances which make the processing of the dispersion, in particular on an industrial scale, considerably more difficult. Such substances include, in particular, strong acids, strongly corrosive substances or strongly toxic substances. Accordingly, the dispersions produced by the process according to the invention can be processed in particular in customary processes for producing thin polymer films.
- the polymer is dissolved in a strong acid or in a liquid mixture which contains a Lewis acid.
- the strong acid is preferably methanesulfonic acid or concentrated sulfuric acid or a mixture thereof.
- the mixture containing a Lewis acid is preferably a mixture mix a Lewis acid with a nitroalkane or a nitroaromatic such as nitromethane or nitrobenzene.
- the Lewis acid is preferably GaCI, AICI 3 , FeCI 3 , or SbCI 3 .
- the Lewis acid content in the mixture is preferably 30 to 90% by weight.
- the concentration of the polymer in the solution produced in the first stage of the process according to the invention is typically 0.1 to 5% by weight, preferably 0.5 to 2% by weight.
- the solution prepared in the first stage is introduced into an aqueous surfactant solution. This is done so that the polymer forms a dispersion.
- the introduction of the solution of the polymer into the aqueous surfactant solution is preferably carried out under the action of ultrasound. Commercial ultrasonic homogenizers are particularly suitable for this.
- Suitable surfactants are ethoxylates and polyethylene glycols and especially fatty amine oxethylates. These are basically basic in nature.
- the dispersion of the rigid-chain conjugated polymer obtained in the second stage of the process according to the invention only contains the solvent used in the first stage (strong acid or liquid mixture which contains a Lewis acid) in a highly diluted form. Nevertheless, it is fundamentally preferred to then carry out the following stages: separating the disperse polymer from the liquid phase of the dispersion obtained in the second stage; Washing the separated polymer and redispersing the washed polymer in an aqueous or organic surfactant solution.
- the disperse polymer can be separated off in particular by centrifuging and decanting the supernatant solution.
- the separated polymer (centrifuge) can then be taken up again in water for washing. This process (centrifugation and resumption in water) is preferably repeated until the pH of the supernatant solution is neutral.
- the disperse polymer is redispersed in an aqueous or organic surfactant solution.
- This redispersion also preferably takes place under the action of ultrasound.
- a solution is particularly suitable as the dispersion medium one of the above-mentioned surfactants in water or in an organic solvent, such as chloroform, toluene, tetrahydrofuran or cyclohexanone, or in a mixture of water and a water-soluble organic solvent, such as tetrahydrofuran.
- concentration of the surfactant solutions used in the process according to the invention is preferably 0.01 to 5% by weight, more preferably 0.05 to 2% by weight.
- the process according to the invention provides a dispersion of a stiffly chain, conjugated polymer which is insoluble in organic solvents in an aqueous or organic or aqueous-organic dispersion medium, the size of the dispersed polymer particles being in the range from 10 to 800 nm, preferably 10 to 100 nm.
- the dispersion medium consists, apart from the surfactants contained therein, essentially of water or an organic solvent, such as e.g. Chloroform, toluene, tetrahydrofuran or cyclohexanone, or from a mixture of water and a water-miscible organic solvent, e.g. Tetra-i5 hydrofuran.
- the dispersion medium of the dispersions according to the invention is free from substances which make the industrial processing of the dispersion for the production of thin films of rigid-chain, conjugated polymers considerably more difficult, such as e.g. strong acids.
- the stable dispersions according to the invention are particularly suitable for the production of thin layers by drop casting or spin coating processes.
- Such thin layers can in particular be used as active charge carrier layers in electronic components, such as Field effect transistors, organic light emitting diodes or photovoltaic cells can be used.
- a 1% (weight percent) BBL solution in methanesulfonic acid was prepared.
- 100 mg of the BBL were dissolved in 10 g of methanesulfonic acid.
- an aqueous 1% surfactant solution with T150 was realized.
- T150 is a surface active genamine (Hoechst) from the series of tallow fatty amine
- the centrifugate was redispersed again in a water / surfactant solution (10 ml of a 1% or 0.1% solution of T150 in water) with ultrasound treatment at maximum power (4 min ultrasound). This results in stable dispersions with particle sizes in the range from 15 to 100 nm.
- the neutral-washed centrifugate was redispersed in a tetrahydrofuran / surfactant solution (10 ml of a 0.1% solution of T150 in tetrahydrofuran) with ultrasound treatment (4 min ultrasound, maximum power). This also results in stable organic dispersions with particle sizes in the range of ⁇ 100 nm.
- the average particle sizes were determined using an ultracentrifuge and confirmed by scanning electronic images.
- the scanning electronic recordings were made using a JSM6330F device from Joel.
- the sample preparation was carried out as follows: A slide was placed with the appropriate one Sample coated by dripping and then a 4 nm thick layer of platinum was found! The sample thus prepared was examined at an acceleration voltage of 5 kV.
- OFET organic field effect transistor
- Field-effect transistors with a bottom-gate structure were built.
- the OFET structures used were identified as follows: source-drain (aluminum) distance: 20 ⁇ m, W / L ratio: 360, gate layer thickness (SiO 2 ): 500 nm.
- aqueous 1% surfactant-containing dispersion with a solids content of 1% of poly (benzobisimidazobenzo-phenanthroline) (BBL) particles (Table 1, Sample No. 2) was dropped onto a transistor structure in a glove box and then to remove the Water annealed at 110 ° C for 2 hours.
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Dispersion Chemistry (AREA)
- Thin Film Transistor (AREA)
- Electroluminescent Light Sources (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP04731366A EP1631617B1 (de) | 2003-06-03 | 2004-05-06 | Dispersionen steifkettiger, konjugierter polymere, verfahren zu deren herstellung und deren verwendung zur herstellung elektronischer bauelemente |
DE502004002634T DE502004002634D1 (de) | 2003-06-03 | 2004-05-06 | Dispersionen steifkettiger, konjugierter polymere, verfahren zu deren herstellung und deren verwendung zur herstellung elektronischer bauelemente |
US10/559,437 US20060258802A1 (en) | 2003-06-03 | 2004-05-06 | Dispersions of rigid-chain conjugated polymers, method for the production and use thereof for producing electronic components |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10325102.2 | 2003-06-03 | ||
DE10325102A DE10325102B3 (de) | 2003-06-03 | 2003-06-03 | Dispersionen steifkettiger, konjugierter Polymere, Verfahren zu deren Herstellung und deren Verwendung zur Herstellung elektronischer Bauelemente |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2004106414A1 true WO2004106414A1 (de) | 2004-12-09 |
Family
ID=32186018
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2004/004839 WO2004106414A1 (de) | 2003-06-03 | 2004-05-06 | Dispersionen steifkettiger, konjugierter polymere, verfahren zu deren herstellung und deren verwendung zur herstellung elektronischer bauelemente |
Country Status (4)
Country | Link |
---|---|
US (1) | US20060258802A1 (de) |
EP (1) | EP1631617B1 (de) |
DE (2) | DE10325102B3 (de) |
WO (1) | WO2004106414A1 (de) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104364292B (zh) | 2012-04-13 | 2018-02-02 | 韦克森林大学 | 低带隙结合聚合组合物及其应用 |
US10955540B2 (en) | 2017-12-01 | 2021-03-23 | Aptiv Technologies Limited | Detection system |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4963616A (en) * | 1988-12-29 | 1990-10-16 | Honeywell Inc. | Complexation-mediated solubilization of polymers |
US5114610A (en) * | 1988-12-29 | 1992-05-19 | Honeywell Inc. | Solubilizing polymers with an organic solvent system |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4945156A (en) * | 1988-12-29 | 1990-07-31 | Honeywell Inc. | Solution processing of rigid chain and ladder polymers |
DE4110263A1 (de) * | 1991-03-28 | 1992-10-01 | Hoechst Ag | Waessrige dispersion aus intrinsisch elektrisch leitfaehigen polyalkoxythiophenen, verfahren zu ihrer herstellung und ihre verwendung |
US5378404A (en) * | 1991-04-22 | 1995-01-03 | Alliedsignal Inc. | Process for forming dispersions or solutions of electrically conductive conjugated polymers in a polymeric or liquid phase |
US6605904B2 (en) * | 2000-01-31 | 2003-08-12 | University Of Rochester | Tunable multicolor electroluminescent device |
US6429040B1 (en) * | 2000-04-06 | 2002-08-06 | Agere Systems Guardian Corp. | Device comprising a bipolar semi-conducting film |
US6899829B2 (en) * | 2000-11-30 | 2005-05-31 | Shipley Company, L.L.C. | Conductive polymer colloidal compositions with selectivity for non-conductive surfaces |
JP4464277B2 (ja) * | 2002-09-24 | 2010-05-19 | イー・アイ・デュポン・ドウ・ヌムール・アンド・カンパニー | 導電性有機ポリマー/ナノ粒子複合材料およびその使用方法 |
-
2003
- 2003-06-03 DE DE10325102A patent/DE10325102B3/de not_active Expired - Fee Related
-
2004
- 2004-05-06 US US10/559,437 patent/US20060258802A1/en not_active Abandoned
- 2004-05-06 DE DE502004002634T patent/DE502004002634D1/de not_active Expired - Lifetime
- 2004-05-06 EP EP04731366A patent/EP1631617B1/de not_active Expired - Lifetime
- 2004-05-06 WO PCT/EP2004/004839 patent/WO2004106414A1/de active IP Right Grant
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4963616A (en) * | 1988-12-29 | 1990-10-16 | Honeywell Inc. | Complexation-mediated solubilization of polymers |
US5114610A (en) * | 1988-12-29 | 1992-05-19 | Honeywell Inc. | Solubilizing polymers with an organic solvent system |
Also Published As
Publication number | Publication date |
---|---|
DE502004002634D1 (de) | 2007-02-22 |
US20060258802A1 (en) | 2006-11-16 |
EP1631617B1 (de) | 2007-01-10 |
EP1631617A1 (de) | 2006-03-08 |
DE10325102B3 (de) | 2004-05-27 |
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