WO2011052618A1 - 有機表面保護層組成物及び有機表面保護方法 - Google Patents
有機表面保護層組成物及び有機表面保護方法 Download PDFInfo
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- WO2011052618A1 WO2011052618A1 PCT/JP2010/069025 JP2010069025W WO2011052618A1 WO 2011052618 A1 WO2011052618 A1 WO 2011052618A1 JP 2010069025 W JP2010069025 W JP 2010069025W WO 2011052618 A1 WO2011052618 A1 WO 2011052618A1
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- WIPO (PCT)
- Prior art keywords
- organic
- protective layer
- layer
- metal alkoxide
- surface protective
- Prior art date
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- 239000011241 protective layer Substances 0.000 title claims abstract description 73
- 239000000203 mixture Substances 0.000 title claims abstract description 36
- 238000000034 method Methods 0.000 title claims description 32
- 229910052751 metal Inorganic materials 0.000 claims abstract description 64
- 239000002184 metal Substances 0.000 claims abstract description 64
- 150000004703 alkoxides Chemical class 0.000 claims abstract description 38
- 239000012044 organic layer Substances 0.000 claims abstract description 35
- 238000005530 etching Methods 0.000 claims abstract description 29
- 239000003960 organic solvent Substances 0.000 claims abstract description 18
- 239000003381 stabilizer Substances 0.000 claims abstract description 15
- 239000010410 layer Substances 0.000 claims description 113
- 239000010409 thin film Substances 0.000 claims description 33
- 239000000126 substance Substances 0.000 claims description 21
- -1 tungsten alkoxide Chemical class 0.000 claims description 16
- 125000001153 fluoro group Chemical group F* 0.000 claims description 14
- 229910052731 fluorine Inorganic materials 0.000 claims description 13
- HZAXFHJVJLSVMW-UHFFFAOYSA-N 2-Aminoethan-1-ol Chemical compound NCCO HZAXFHJVJLSVMW-UHFFFAOYSA-N 0.000 claims description 10
- 229910052721 tungsten Inorganic materials 0.000 claims description 9
- 239000010937 tungsten Substances 0.000 claims description 9
- 150000001491 aromatic compounds Chemical class 0.000 claims description 5
- 150000001875 compounds Chemical class 0.000 claims description 5
- 238000003980 solgel method Methods 0.000 claims description 4
- 239000005416 organic matter Substances 0.000 claims description 2
- 230000015572 biosynthetic process Effects 0.000 abstract description 18
- 230000006866 deterioration Effects 0.000 abstract description 2
- 150000002894 organic compounds Chemical class 0.000 abstract description 2
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- CATSNJVOTSVZJV-UHFFFAOYSA-N heptan-2-one Chemical compound CCCCCC(C)=O CATSNJVOTSVZJV-UHFFFAOYSA-N 0.000 description 12
- 239000010408 film Substances 0.000 description 10
- 229920002120 photoresistant polymer Polymers 0.000 description 10
- 238000004544 sputter deposition Methods 0.000 description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 9
- YRKCREAYFQTBPV-UHFFFAOYSA-N acetylacetone Chemical compound CC(=O)CC(C)=O YRKCREAYFQTBPV-UHFFFAOYSA-N 0.000 description 8
- 230000009471 action Effects 0.000 description 8
- 239000003513 alkali Substances 0.000 description 8
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- 239000010949 copper Substances 0.000 description 8
- 239000011368 organic material Substances 0.000 description 8
- 238000000059 patterning Methods 0.000 description 7
- 238000000206 photolithography Methods 0.000 description 7
- 239000004065 semiconductor Substances 0.000 description 7
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 6
- 230000004888 barrier function Effects 0.000 description 6
- 238000000576 coating method Methods 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 6
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- 238000005259 measurement Methods 0.000 description 6
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- WGTYBPLFGIVFAS-UHFFFAOYSA-M tetramethylammonium hydroxide Chemical compound [OH-].C[N+](C)(C)C WGTYBPLFGIVFAS-UHFFFAOYSA-M 0.000 description 6
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- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 4
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 4
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 4
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- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 3
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 description 3
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 description 3
- 239000004793 Polystyrene Substances 0.000 description 3
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 230000004075 alteration Effects 0.000 description 3
- AWXKYODXCCJWNF-UHFFFAOYSA-N ethanol tungsten Chemical compound [W].CCO.CCO.CCO.CCO.CCO AWXKYODXCCJWNF-UHFFFAOYSA-N 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 229910052750 molybdenum Inorganic materials 0.000 description 3
- 239000011733 molybdenum Substances 0.000 description 3
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- 229920002223 polystyrene Polymers 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- SXPRVMIZFRCAGC-UHFFFAOYSA-N 1,2,3,4,5-pentafluoro-6-methylbenzene Chemical compound CC1=C(F)C(F)=C(F)C(F)=C1F SXPRVMIZFRCAGC-UHFFFAOYSA-N 0.000 description 2
- LVJZCPNIJXVIAT-UHFFFAOYSA-N 1-ethenyl-2,3,4,5,6-pentafluorobenzene Chemical compound FC1=C(F)C(F)=C(C=C)C(F)=C1F LVJZCPNIJXVIAT-UHFFFAOYSA-N 0.000 description 2
- OZAIFHULBGXAKX-UHFFFAOYSA-N 2-(2-cyanopropan-2-yldiazenyl)-2-methylpropanenitrile Chemical compound N#CC(C)(C)N=NC(C)(C)C#N OZAIFHULBGXAKX-UHFFFAOYSA-N 0.000 description 2
- BWLBGMIXKSTLSX-UHFFFAOYSA-N 2-hydroxyisobutyric acid Chemical compound CC(C)(O)C(O)=O BWLBGMIXKSTLSX-UHFFFAOYSA-N 0.000 description 2
- DKKYOQYISDAQER-UHFFFAOYSA-N 3-[3-(3-aminophenoxy)phenoxy]aniline Chemical compound NC1=CC=CC(OC=2C=C(OC=3C=C(N)C=CC=3)C=CC=2)=C1 DKKYOQYISDAQER-UHFFFAOYSA-N 0.000 description 2
- ROWKJAVDOGWPAT-UHFFFAOYSA-N Acetoin Chemical compound CC(O)C(C)=O ROWKJAVDOGWPAT-UHFFFAOYSA-N 0.000 description 2
- AEMRFAOFKBGASW-UHFFFAOYSA-N Glycolic acid Chemical compound OCC(O)=O AEMRFAOFKBGASW-UHFFFAOYSA-N 0.000 description 2
- 230000002411 adverse Effects 0.000 description 2
- 239000012670 alkaline solution Substances 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- 239000012298 atmosphere Substances 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
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- 239000007772 electrode material Substances 0.000 description 2
- 239000000706 filtrate Substances 0.000 description 2
- ZQBFAOFFOQMSGJ-UHFFFAOYSA-N hexafluorobenzene Chemical compound FC1=C(F)C(F)=C(F)C(F)=C1F ZQBFAOFFOQMSGJ-UHFFFAOYSA-N 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- JVTAAEKCZFNVCJ-UHFFFAOYSA-N lactic acid Chemical compound CC(O)C(O)=O JVTAAEKCZFNVCJ-UHFFFAOYSA-N 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- XKBGEWXEAPTVCK-UHFFFAOYSA-M methyltrioctylammonium chloride Chemical compound [Cl-].CCCCCCCC[N+](C)(CCCCCCCC)CCCCCCCC XKBGEWXEAPTVCK-UHFFFAOYSA-M 0.000 description 2
- NFHFRUOZVGFOOS-UHFFFAOYSA-N palladium;triphenylphosphane Chemical compound [Pd].C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1 NFHFRUOZVGFOOS-UHFFFAOYSA-N 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- LLHKCFNBLRBOGN-UHFFFAOYSA-N propylene glycol methyl ether acetate Chemical compound COCC(C)OC(C)=O LLHKCFNBLRBOGN-UHFFFAOYSA-N 0.000 description 2
- 239000002356 single layer Substances 0.000 description 2
- 229910000029 sodium carbonate Inorganic materials 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- QBYIENPQHBMVBV-HFEGYEGKSA-N (2R)-2-hydroxy-2-phenylacetic acid Chemical compound O[C@@H](C(O)=O)c1ccccc1.O[C@@H](C(O)=O)c1ccccc1 QBYIENPQHBMVBV-HFEGYEGKSA-N 0.000 description 1
- GETTZEONDQJALK-UHFFFAOYSA-N (trifluoromethyl)benzene Chemical compound FC(F)(F)C1=CC=CC=C1 GETTZEONDQJALK-UHFFFAOYSA-N 0.000 description 1
- USPWUOFNOTUBAD-UHFFFAOYSA-N 1,2,3,4,5-pentafluoro-6-(trifluoromethyl)benzene Chemical compound FC1=C(F)C(F)=C(C(F)(F)F)C(F)=C1F USPWUOFNOTUBAD-UHFFFAOYSA-N 0.000 description 1
- NCWDBNBNYVVARF-UHFFFAOYSA-N 1,3,2-dioxaborolane Chemical compound B1OCCO1 NCWDBNBNYVVARF-UHFFFAOYSA-N 0.000 description 1
- SXNCMLQAQIGJDO-UHFFFAOYSA-N 2-bromo-5-(5-bromothiophen-2-yl)thiophene Chemical compound S1C(Br)=CC=C1C1=CC=C(Br)S1 SXNCMLQAQIGJDO-UHFFFAOYSA-N 0.000 description 1
- LBSXSAXOLABXMF-UHFFFAOYSA-N 4-Vinylaniline Chemical compound NC1=CC=C(C=C)C=C1 LBSXSAXOLABXMF-UHFFFAOYSA-N 0.000 description 1
- XCLXXYFXTRVBMI-UHFFFAOYSA-N CC(C)O[W](OC(C)C)(OC(C)C)(OC(C)C)OC(C)C Chemical compound CC(C)O[W](OC(C)C)(OC(C)C)(OC(C)C)OC(C)C XCLXXYFXTRVBMI-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- QSJXEFYPDANLFS-UHFFFAOYSA-N Diacetyl Chemical group CC(=O)C(C)=O QSJXEFYPDANLFS-UHFFFAOYSA-N 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 1
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- IWYDHOAUDWTVEP-UHFFFAOYSA-N R-2-phenyl-2-hydroxyacetic acid Natural products OC(=O)C(O)C1=CC=CC=C1 IWYDHOAUDWTVEP-UHFFFAOYSA-N 0.000 description 1
- KFFHETPLVQABEL-UHFFFAOYSA-N [W+5].CCCC[O-].CCCC[O-].CCCC[O-].CCCC[O-].CCCC[O-] Chemical compound [W+5].CCCC[O-].CCCC[O-].CCCC[O-].CCCC[O-].CCCC[O-] KFFHETPLVQABEL-UHFFFAOYSA-N 0.000 description 1
- XRCRLLCHKROABH-UHFFFAOYSA-N [W+5].C[O-].C[O-].C[O-].C[O-].C[O-] Chemical compound [W+5].C[O-].C[O-].C[O-].C[O-].C[O-] XRCRLLCHKROABH-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 239000001273 butane Substances 0.000 description 1
- 238000001354 calcination Methods 0.000 description 1
- 125000004112 carboxyamino group Chemical group [H]OC(=O)N([H])[*] 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000008367 deionised water Substances 0.000 description 1
- 229910021641 deionized water Inorganic materials 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- ZBCBWPMODOFKDW-UHFFFAOYSA-N diethanolamine Chemical compound OCCNCCO ZBCBWPMODOFKDW-UHFFFAOYSA-N 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- SUPCQIBBMFXVTL-UHFFFAOYSA-N ethyl 2-methylprop-2-enoate Chemical compound CCOC(=O)C(C)=C SUPCQIBBMFXVTL-UHFFFAOYSA-N 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000012456 homogeneous solution Substances 0.000 description 1
- 230000005660 hydrophilic surface Effects 0.000 description 1
- XLSMFKSTNGKWQX-UHFFFAOYSA-N hydroxyacetone Chemical compound CC(=O)CO XLSMFKSTNGKWQX-UHFFFAOYSA-N 0.000 description 1
- GFAZHVHNLUBROE-UHFFFAOYSA-N hydroxymethyl propionaldehyde Natural products CCC(=O)CO GFAZHVHNLUBROE-UHFFFAOYSA-N 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000004310 lactic acid Substances 0.000 description 1
- 235000014655 lactic acid Nutrition 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229960002510 mandelic acid Drugs 0.000 description 1
- 150000002751 molybdenum Chemical class 0.000 description 1
- OFBQJSOFQDEBGM-UHFFFAOYSA-N n-pentane Natural products CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 description 1
- 229910052758 niobium Inorganic materials 0.000 description 1
- 239000010955 niobium Substances 0.000 description 1
- 239000012299 nitrogen atmosphere Substances 0.000 description 1
- 235000006408 oxalic acid Nutrition 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229910000027 potassium carbonate Inorganic materials 0.000 description 1
- 239000011541 reaction mixture Substances 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 229910052715 tantalum Inorganic materials 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
Images
Classifications
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/008—Temporary coatings
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K10/00—Organic devices specially adapted for rectifying, amplifying, oscillating or switching; Organic capacitors or resistors having potential barriers
- H10K10/40—Organic transistors
- H10K10/46—Field-effect transistors, e.g. organic thin-film transistors [OTFT]
- H10K10/462—Insulated gate field-effect transistors [IGFETs]
- H10K10/466—Lateral bottom-gate IGFETs comprising only a single gate
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K10/00—Organic devices specially adapted for rectifying, amplifying, oscillating or switching; Organic capacitors or resistors having potential barriers
- H10K10/40—Organic transistors
- H10K10/46—Field-effect transistors, e.g. organic thin-film transistors [OTFT]
- H10K10/462—Insulated gate field-effect transistors [IGFETs]
- H10K10/468—Insulated gate field-effect transistors [IGFETs] characterised by the gate dielectrics
- H10K10/471—Insulated gate field-effect transistors [IGFETs] characterised by the gate dielectrics the gate dielectric comprising only organic materials
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K10/00—Organic devices specially adapted for rectifying, amplifying, oscillating or switching; Organic capacitors or resistors having potential barriers
- H10K10/40—Organic transistors
- H10K10/46—Field-effect transistors, e.g. organic thin-film transistors [OTFT]
- H10K10/462—Insulated gate field-effect transistors [IGFETs]
- H10K10/468—Insulated gate field-effect transistors [IGFETs] characterised by the gate dielectrics
- H10K10/474—Insulated gate field-effect transistors [IGFETs] characterised by the gate dielectrics the gate dielectric comprising a multilayered structure
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K10/00—Organic devices specially adapted for rectifying, amplifying, oscillating or switching; Organic capacitors or resistors having potential barriers
- H10K10/80—Constructional details
- H10K10/88—Passivation; Containers; Encapsulations
Definitions
- the present invention relates to a protective layer for protecting the surface of an organic substance, particularly the surface of an organic layer composed of the organic substance, from a physical or chemical action applied from the outside, and a composition for forming the protective layer. Related to things.
- an organic element such as an organic thin film transistor and an organic EL element
- functional layers such as an insulating layer, a semiconductor layer, and a light emitting layer are made of an organic material. Therefore, the organic element is more flexible than an inorganic element having a functional layer made of an inorganic material, can be manufactured by a lower temperature process, can use a plastic substrate or a film as a substrate, and is a lightweight and hardly broken element.
- the organic element is formed by applying or printing a solution containing an organic material, and a large number of elements can be manufactured on a large-area substrate at a low cost. Furthermore, since there are many types of organic materials that can be used as the functional layer, an element having a wide variation in characteristics can be manufactured by using organic materials having different molecular structures.
- Organic elements generally have a structure in which an organic layer such as a functional layer made of an organic substance is sandwiched between a cathode and an anode. Since the conductivity of an organic substance is inferior to that of a metal, in an organic element, the electrode is preferably formed from a metal. That is, when manufacturing an organic element, it is preferable that the electrode containing a metal is formed in contact with the organic layer made of an organic material.
- a metal layer is formed on the entire surface of the organic layer using a sputtering method, and then, by performing patterning, a metal layer that does not require electrical conductivity is formed.
- An electrode is formed by removing from the surface of the organic layer.
- the metal vapor used in the sputtering method has high energy and may alter the contacted organic layer. In that case, the characteristics of the surface of the organic layer exposed by patterning at the time of electrode formation have changed compared to the original state before electrode formation.
- an etching solution containing a relatively strong alkali or acid is used in the etching or lift-off process. Strong alkali or strong acid contained in the etching solution may alter the underlying organic layer.
- Patent Document 1 describes that the entire surface of a gate insulating layer of an organic thin film transistor is covered with a barrier layer having high solvent resistance.
- the gate insulating layer which is an organic layer, is formed by the presence of the barrier layer from the action of an etching solution used when patterning the metal layer or an organic solvent used when forming the organic semiconductor layer. Protected.
- a preferable barrier layer is an insulating inorganic film formed by a coating process or a vacuum process.
- the composition for forming the barrier layer is a solution prepared by dissolving polytitanometalloxane in 1-butanol, as specifically shown as examples.
- polytitanometalloxane is chemically highly stable, and a very strong alkaline solution is required to etch the layer.
- a strong alkaline solution comes into contact with the underlying organic layer, the surface of the organic layer is damaged. Therefore, the barrier layer of Patent Document 1 made of polytitanometalloxane is difficult to remove or pattern when it becomes unnecessary, and if the barrier layer is removed or patterned, the underlying gate The insulation layer is damaged.
- the present invention solves the above-described conventional problems, and an object of the present invention is to form a thin and uniform protective layer on the surface of the organic layer, and to etch the formed protective layer. It is an object of the present invention to provide an organic surface protective layer composition that can be easily removed and suppresses alteration of an organic compound present on the surface of an organic layer exposed as a result of etching.
- Protective layer composition refers to a composition for forming a protective layer.
- the “protective layer” refers to a layer that covers a surface to be protected and protects the surface from the influence of a physical action or a chemical action applied from the outside.
- a physical action there is an alteration action by the energy of the metal vapor used when performing the physical vapor deposition (PVD) method.
- PVD physical vapor deposition
- chemical action there is an alteration action caused by an alkali or an acid used when etching is performed.
- the present invention provides an organic surface protective layer composition containing (A) a metal alkoxide, (B) a stabilizer for the metal alkoxide, and (C) an organic solvent for dissolving the metal alkoxide.
- the metal alkoxide is tungsten alkoxide.
- the metal alkoxide stabilizer is composed of ⁇ -hydroxyketone, ⁇ -hydroxyketoimine, ethanolamine, ⁇ -diketone, ⁇ -diketimine, ⁇ -diketone, and ⁇ -hydroxycarboxylic acid. It is one or more compounds selected from more.
- the said organic solvent is an organic solvent which has a fluorine atom.
- the organic solvent having a fluorine atom is an aromatic compound having a fluorine atom.
- the present invention provides a process for applying the organic surface protective layer composition according to any of the above to the surface of an organic material; Curing the metal alkoxide contained in the organic surface protective layer composition by a sol-gel method to form an organic surface protective layer; A step of subjecting the surface of the organic surface protective layer to a treatment for altering the surface when directly applied to the surface of the organic matter; and a step of removing the organic surface protective layer by etching; A method for protecting the surface of an organic material including
- the present invention also provides an organic layer having a surface protected using the above method.
- the present invention also provides an organic thin film transistor gate insulating layer having a surface protected using the above method.
- the present invention also provides an organic thin film transistor having the organic thin film transistor gate insulating layer.
- the organic surface protective layer composition of the present invention can form a thin and uniform protective layer on the organic surface. Further, the formed protective layer can be easily removed by etching, and the organic surface exposed as a result of the etching is not altered.
- the organic surface protective layer composition of the present invention contains a metal alkoxide (A), a stabilizer for the metal alkoxide (B), and an organic solvent (C) for dissolving the metal alkoxide. It is liquid.
- the organic surface protective layer composition of the present invention is prepared by mixing constituent components. The mixing of the constituent components can be performed, for example, by putting them in a suitable container and stirring them.
- Metal alkoxide (A) is a compound that forms a protective layer containing polymetalloxane on the organic surface by a sol-gel method. This protective layer is not attacked by the metal vapor and blocks the metal vapor. Since the protective layer is easy to etch, the protective layer that is no longer needed can be easily removed from the organic surface.
- the metal alkoxide include titanium alkoxide, aluminum alkoxide, tungsten alkoxide, niobium alkoxide, zirconium alkoxide, vanadium alkoxide, and tantalum alkoxide.
- a preferred metal alkoxide is tungsten alkoxide.
- the solvent of the etching solution contains water or alcohol.
- the alkali contained in the etching solution is relatively weak, the organic surface is not altered even when it is in contact with the underlying organic surface.
- the alkali contained in the etching solution is, for example, sodium carbonate, potassium carbonate, sodium hydroxide, potassium hydroxide, tetramethylammonium hydroxide, monoethanolamine.
- tungsten alkoxide examples include tungsten (V) methoxide, tungsten (V) ethoxide, tungsten (V) isopropoxide, tungsten (V) butoxide and the like.
- Metal alkoxide stabilizer (B) contained in the organic surface protective layer composition of the present invention includes ⁇ -hydroxyketone, ⁇ -hydroxyketoimine, ethanolamine, ⁇ -diketone, ⁇ -diketimine, ⁇ -hydroxycarboxylic acid It is preferably one or more compounds selected from the group consisting of ⁇ -diketones.
- Examples of ⁇ -hydroxyketone include acetol and acetoin.
- ⁇ -Hydroxyketoimine includes acetol hydrazone and the like.
- ethanolamine examples include monoethanolamine and diethanolamine.
- ⁇ -diketone examples include diacetyl.
- ⁇ -diketoimine examples include 2,3- ⁇ di (2'-hydroxyethylimino) ⁇ butane.
- ⁇ -hydroxycarboxylic acid examples include glycolic acid, lactic acid, 2-hydroxyisobutyric acid, mandelic acid, and oxalic acid.
- ⁇ -diketone examples include acetylacetone.
- a stabilizer having a large stabilizing effect is used. By doing so, a thin and uniform protective layer can be formed.
- a particularly preferred stabilizer is acetylacetone.
- Organic solvent (C) is an organic solvent that can dissolve the metal alkoxide to be used, and preferably also dissolves the stabilizer and exhibits volatility at room temperature.
- An organic solvent having a fluorine atom is preferred because it has a poor affinity for organic substances and hardly adversely affects the organic surface.
- the organic solvent having a fluorine atom is well adapted to the organic surface and is advantageous for forming a thin and uniform protective layer.
- the organic solvent having a fluorine atom is particularly preferably an aromatic compound having a fluorine atom.
- Aromatic compounds having fluorine atoms are well suited to form a thin, uniform protective layer when the organic surface has a fluoro-substituted aromatic moiety.
- aromatic compound having a fluorine atom examples include trifluoromethylbenzene, 2,3,4,5,6-pentafluorotoluene, octafluorotoluene, hexafluorobenzene, 2,3,4,5,6-pentafluoro.
- aromatic compound having a fluorine atom examples include trifluoromethylbenzene, 2,3,4,5,6-pentafluorotoluene, octafluorotoluene, hexafluorobenzene, 2,3,4,5,6-pentafluoro.
- the mole of the metal alkoxide (A) when the sum of the number of moles of the metal alkoxide (A) and the number of moles of the stabilizer (B) of the metal alkoxide is 100, the mole of the metal alkoxide (A).
- the number is preferably 10 to 90, more preferably 20 to 80.
- the weight of the organic solvent (C) having a fluorine atom is preferably 25 to 3000. More preferably, it is 100 to 2000.
- the organic surface protection method of the present invention is performed by first forming a protective layer on the surface of an organic substance and then removing the protective layer. In general, between the formation of the protective layer and the removal of the protective layer, a step of applying a treatment to the surface of the protective layer when the surface of the organic substance is directly applied is performed. A process for forming a metal layer is performed above the surface, for example, on the protective layer.
- steps for forming the metal layer include physical vapor deposition (PVD) methods including sputtering, patterning with etching, and the like. That is, the protective layer prevents the organic surface from being affected by the physical or chemical action necessary to form the metal layer while the metal layer is formed over the organic surface.
- PVD physical vapor deposition
- the organic surface to be protected is an organic surface on which a metal layer such as an electrode or wiring is formed.
- a metal layer such as an electrode or wiring
- organic substances include functional layers and insulating layers of organic elements.
- an organic substance that does not require protection for a part of the organic surface is more preferable. This is because the organic surface protection method of the present invention maintains the characteristics of the organic surface before and after the formation of the metal layer, so even if the surface of the organic layer is exposed after the formation of the metal layer, This is because the function is exhibited.
- Particularly preferred organic substances for protecting the surface are functional layers of organic elements, particularly organic thin film transistor gate insulating layers.
- the organic thin film transistor having a gate insulating layer protected by the method of the present invention has excellent transistor characteristics, and in particular, the absolute value of the threshold voltage and the hysteresis are small.
- the organic surface protective layer is formed by applying the organic surface protective layer composition of the present invention to the surface of an organic material and curing the metal alkoxide contained in the organic surface protective layer composition by a sol-gel method.
- the reactivity of the metal alkoxide is high, the curing reaction of the metal alkoxide, that is, the sol-gel reaction, is caused by moisture in the air.
- the coating film of the organic surface protective layer composition is left in the atmosphere, a sol-gel reaction occurs and a protective layer is formed.
- the coating film containing tungsten alkoxide is placed in an atmosphere in which the humidity is adjusted to a predetermined range and subjected to a sol-gel reaction.
- a step for forming a metal layer is performed.
- the protective layer is removed from the organic surface.
- the removal of the protective layer may be performed partially.
- the protective layer can be removed by etching using an etching solution suitable for removing the metal alkoxide used, for example, an alkali solution.
- Synthesis example 1 (Production of polymer compound 1) Styrene (made by Wako Pure Chemical Industries) 2.06 g, 2,3,4,5,6-pentafluorostyrene (made by Aldrich) 2.43 g, 2- [O- [1′-methylpropylideneamino] carboxyamino] ethyl -Methacrylate (made by Showa Denko, trade name “Karenz MOI-BM”) 1.00 g, 2,2′-azobis (2-methylpropionitrile) 0.06 g, 2-heptanone (made by Wako Pure Chemical Industries) 14.06 g Is put in a 50 ml pressure vessel (Ace), bubbled with nitrogen, sealed, and polymerized in an oil bath at 60 ° C. for 48 hours to give a viscous 2-heptanone solution in which the polymer compound 1 is dissolved.
- the high molecular compound 1 has the following repeating unit.
- the additional numbers in parentheses indicate the molar ratio of repeating units
- the polymer compound 1 has excellent insulating properties, and is useful as an insulating material or insulating layer for organic elements, particularly as a material for forming an organic thin film transistor gate insulating layer.
- Example 1 Manufacture of organic surface protective layer composition
- the solution was put in a 10 ml sample bottle and mixed with stirring to prepare a coating solution that was a uniform organic surface protective layer composition.
- the obtained solution was filtered using a membrane filter having a pore size of 0.2 ⁇ m, and the filtrate was applied on a glass substrate by spin coating, and then baked on a hot plate at 220 ° C. for 30 minutes to obtain an organic layer. .
- the contact angle of the organic layer with respect to pure water was 92 °.
- the organic surface protective layer composition was filtered using a membrane filter having a pore size of 0.2 ⁇ m, and the filtrate was applied onto the organic layer by a spin coating method, and then baked at 150 ° C. for 30 minutes on a hot plate. An organic surface protective layer having a thickness of about 20 nm was obtained.
- the contact angle of the exposed organic layer with pure water was 89.5 °, and the change in the contact angle of the organic layer with pure water due to the formation of the electrode was 2.5 °.
- Comparative Example 1 The organic layer was prepared in the same manner as in Example 1, and then the organic layer was purified before the electrode was formed and after the electrode was removed in the same manner as in Example 1 except that the organic surface protective layer was not formed. The contact angle with respect to was measured. The contact angle with respect to the pure water of the organic layer after electrode removal was 25 °, and the change in the contact angle with respect to the pure water of the organic layer due to the formation of the electrode was 64.5 °, indicating that the sputter damage was large.
- Example 2 Manufacture of organic surface protective layer composition 10 ml sample bottle containing 1.30 g of tungsten (V) ethoxide (manufactured by Gelest), 0.32 g of acetylacetone (manufactured by Wako Pure Chemical Industries) as a metal alkoxide stabilizer, 4.00 g of PGMEA (propylene glycol monomethyl ether acetate) The mixture was stirred and mixed to prepare a coating solution that was a uniform organic surface protective layer composition.
- V tungsten
- acetylacetone manufactured by Wako Pure Chemical Industries
- Synthesis example 2 (Synthesis of polymer compound 2) 4-aminostyrene (manufactured by Aldrich) 3.50 g, 2,3,4,5,6-pentafluorostyrene (manufactured by Aldrich) 13.32 g, 2,2′-azobis (2-methylpropionitrile) 0.08 g 25-36 g of 2-heptanone (manufactured by Wako Pure Chemical Industries, Ltd.) was placed in a 125 ml pressure vessel (manufactured by Ace), bubbled with nitrogen, sealed, and polymerized in an oil bath at 60 ° C. for 48 hours to obtain a polymer compound. A viscous 2-heptanone solution in which 2 was dissolved was obtained.
- the high molecular compound 2 has the following repeating unit.
- the additional numbers in parentheses indicate the molar ratio of repeating units.
- Synthesis example 3 (Synthesis of polymer compound 3) In toluene (80 mL) containing 6.40 g of 9,9-di-n-octylfluorene-2,7-di (ethylene boronate) and 4.00 g of 5,5′-dibromo-2,2′-bithiophene Under nitrogen, 0.18 g of tetrakis (triphenylphosphine) palladium, 1.0 g of methyltrioctylammonium chloride (manufactured by Aldrich, trade name “Aliquat 336” (registered trademark)), and 24 mL of 2M aqueous sodium carbonate solution were added. It was.
- the mixture was stirred vigorously and heated to reflux for 24 hours.
- the viscous reaction mixture was poured into 500 mL of acetone to precipitate a fibrous yellow polymer.
- the polymer was collected by filtration, washed with acetone and dried in a vacuum oven at 60 ° C. overnight.
- the resulting polymer is referred to as polymer compound 3.
- the high molecular compound 3 has the following repeating unit. n indicates the number of repeating units.
- Example 3 Manufacture of organic thin-film transistors
- Examples of the organic thin film transistor of the present invention will be described with reference to FIGS.
- a pair of electrodes composed of the conductive layer 4 and the second conductive layer 5 (one of which is referred to as a source electrode 7 and the other is referred to as a drain electrode 7 ′) is formed, and covers the source electrode 7 and the drain electrode 7 ′.
- An organic semiconductor layer 8 was formed to manufacture an organic thin film transistor.
- the transistor characteristics were measured in a vacuum prober, and the characteristics were compared to confirm the effect of the present invention.
- the pressure in the vacuum prober at this time was about 5E-3 Pa.
- a Mo (molybdenum) layer was formed on the cleaned substrate 1 by sputtering, and the gate electrode 2 was formed by photolithography.
- the photoresist is “TFR-H PL” manufactured by Tokyo Ohka Kogyo Co., Ltd.
- the developer is “NPD-18” manufactured by Nagase ChemteX
- the resist stripper is “106” manufactured by Tokyo Ohka Kogyo Co., Ltd.
- As the Mo etching solution “S-80520” manufactured by Kanto Chemical Co., Inc. was used. Photolithography was performed by the following steps.
- a film of photoresist “TFR-H PL” was formed on the Mo layer, and irradiated with 365 nm UV light through a photomask.
- the photoresist was developed using a developer “NPD-18”.
- the Mo exposed portion of the Mo layer is removed using Mo etching solution “S-80520”, and the remaining photoresist is removed using resist stripping solution “106”. After peeling, the gate electrode 2 was patterned.
- the substrate on which the gate electrode 2 is formed is wet-cleaned, and then the substrate is cleaned for 300 seconds with a UV ozone cleaner, and then a solution containing the polymer compound 1, polymer compound 2 and 2-heptanone is gated.
- An organic layer was formed on the insulating layer by spin coating. Since this organic layer is thermally crosslinkable, it was immediately fired to obtain the gate insulating layer 3. As a final baking treatment at this time, baking was performed at 220 ° C. for 25 minutes. The layer thickness of the gate insulating layer 3 was about 470 nm.
- the organic surface protective layer composition produced in Example 2 was applied onto the gate insulating layer 3 by spin coating. After coating, the film was dried in the air for about 5 minutes, and then baked at 150 ° C. for 30 minutes to obtain the first conductive layer 4 (organic surface protective layer) shown in FIG. In order to obtain the layer thickness of the first conductive layer 4, the layer thickness of a layer formed by applying the composition on a glass substrate in advance under the same conditions was 30 nm.
- a copper (Cu) layer was formed with a layer thickness of 100 nm on the first conductive layer 4 by a sputtering method to obtain a second conductive layer 5 shown in FIG.
- the second conductive layer 5 was processed by the photolithography method into the shape of the second conductive layer 5 shown in FIG.
- the photoresist is “TFR-H PL” manufactured by Tokyo Ohka Kogyo Co., Ltd.
- the developer is “NPD-18” manufactured by Nagase ChemteX
- the resist stripper is “106” manufactured by Tokyo Ohka Kogyo Co., Ltd.
- As a Cu etching solution a mixed acid “Cu-03” manufactured by Kanto Chemical Co., Inc. was used.
- Photolithography was performed by the following steps.
- a film of photoresist “TFR-H PL” was formed on the Cu layer, and irradiated with 365 nm UV light through a photomask.
- the photoresist was developed using a developer “NPD-18”.
- NPD-18 developer
- the developed photoresist as a mask, the portion of the second conductive layer 5 where Cu is exposed is removed using a Cu etching solution “Cu-03”, and the remaining portion is removed using a resist stripping solution “106”.
- the photoresist was peeled off and the second conductive layer 5 was patterned.
- TMAH aqueous solution concentration 2.386%
- the surface of the gate insulating layer 3 can be protected from process damage when the second conductive layer 5 is produced. Further, by providing the first conductive layer 4, adhesion between the gate insulating layer 3 and the second conductive layer 5 is improved.
- the first conductive layer also functions as a protective layer against diffusion of the second conductive layer 5 into the gate insulating layer 3.
- the polymer compound 3 is dissolved in a xylene solution at a concentration of 0.5 wt%, and is applied onto the substrate by a spin coating method in a glove box under a nitrogen atmosphere.
- the calcination process for 1 minute was implemented.
- the thickness of the organic semiconductor layer was about 16 nm. In this way, an organic thin film transistor having the structure shown in FIG. 7 was obtained.
- the surface treatment to the source electrode and the drain electrode was not performed.
- the gate insulating layer surface roughness Ra of the gate insulating layer was measured using a scanning probe microscope (product name “SPI3800N”, manufactured by SII (NII Technology)).
- the surface contact angle of the gate insulating layer was measured using an automatic contact angle measuring device (trade name “OCA20”, manufactured by Eihiro Seiki Co., Ltd.).
- Mobility ⁇ , maximum current Ion, threshold voltage Vth, hysteresis, Swing Factor (sub-threshold swing), and On / Off ratio were determined from transmission (Vg-Id) characteristics. Further, the weak inversion region formation start voltage at which the drain current Id having the transmission (Vg ⁇ Id) characteristic rises is defined as the drain current rise voltage Von, and is shown in Table 2 separately from the threshold voltage Vth.
- Comparative Example 2 As a comparative example to Example 3, the substrate (glass) 1, the gate electrode (Mo) 2 on the substrate 1, the gate insulating layer (organic insulating layer) 3 on the gate electrode 2, and the gate insulating layer 3 Forming a single-layer source electrode and drain electrode of a single metal single layer of the same material as the second conductive layer 5 of Example 3, and forming an organic semiconductor layer covering the source electrode and the drain electrode; An organic thin film transistor was manufactured.
- Example 3 That is, the same as in Example 3 except that the first conductive layer 4 was not formed, the second conductive layer 5 was formed on the gate insulating layer 3, and the source electrode and the drain electrode were formed by patterning by photolithography. An organic thin film transistor was manufactured, and transistor characteristics were measured. Table 2 shows the obtained transistor characteristics.
- Reference Example A gate electrode 2 was formed on a substrate 1 in the same manner as in Example 3, and a gate insulating layer 3 was formed on the gate electrode.
- the gate insulating layer surface roughness Ra and the gate insulating layer surface contact angle of the gate insulating layer were measured. The results are shown in the column of unprocessed gate insulating layer in Table 2.
- the organic thin film transistor of Example 3 has significantly reduced process damage to the gate insulating layer when the Cu layer is formed by the sputtering method. The value is equivalent to that of the gate insulating layer not passing through the process in the example.
- the organic thin film transistor of Comparative Example 2 since the Cu layer was directly formed on the organic insulating layer by a high-power sputtering method, the physical damage to the gate insulating layer was affected by the surface roughness and the surface contact angle of the gate insulating layer 3. It appears remarkably.
- the organic thin film transistor of Example 3 Compared with the organic thin film transistor of Comparative Example 2, the organic thin film transistor of Example 3 had a drain current rising voltage Von close to 0 [V], almost no hysteresis, and the maximum current Ion improved by about two digits.
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Abstract
Description
ゾル-ゲル法により有機表面保護層組成物に含まれる金属アルコキシドを硬化させて有機表面保護層を形成する工程;
前記有機物の表面に対して直接施すと該表面を変質させる処理を該有機表面保護層の表面に対して施す工程;及び
エッチングすることにより該有機表面保護層を除去する工程;
を包含する有機物の表面の保護方法を提供する。
本発明の有機表面保護層組成物は、金属アルコキシド(A)、該金属アルコキシドの安定化剤(B)、及び、該金属アルコキシドを溶解する有機溶剤(C)を含有する液体である。本発明の有機表面保護層組成物は構成成分を混合して調製される。構成成分の混合は、例えば、これらを適当な容器に入れ、攪拌する方法で行うことができる。
金属アルコキシド(A)は、ゾル-ゲル法により有機表面上にポリメタロキサンを含む保護層を形成する化合物である。この保護層は、金属蒸気に侵食されず、金属蒸気を遮断する。該保護層はエッチングしやすいため、不要になった保護層は、有機表面から容易に除去することができる。金属アルコキシドとしては、チタンアルコキシド、アルミニウムアルコキシド、タングステンアルコキシド、ニオブアルコキシド、ジルコニウムアルコキシド、バナジウムアルコキシド、タンタルアルコキシド等が挙げられる。
本発明の有機表面保護層組成物に含まれる金属アルコキシドの安定化剤(B)は、α-ヒドロキシケトン、α-ヒドロキシケトイミン、エタノールアミン、α-ジケトン、α-ジケトイミン、α-ヒドロキシカルボン酸、β-ジケトンからなる群より選ばれる一種以上の化合物であることが好ましい。
有機溶媒(C)は、使用する金属アルコキシドを溶解することができる有機溶媒であり、好ましくは、安定化剤をも溶解し、室温で揮発性を示すものである。有機物に対する親和性に乏しく、有機表面に悪影響を与え難いことから、フッ素原子を有する有機溶媒が好ましい。フッ素原子を有する有機溶媒は、有機表面がフッ素原子を有する場合に、その有機表面と良く馴染み、薄く均一な厚さの保護層を形成させるのに有利である。
本発明の有機表面保護方法は、まず、有機物の表面に保護層を形成し、その後、その保護層を除去することによって行われる。一般に、保護層の形成と保護層の除去の間には、前記有機物の表面に対して直接施すと該表面を変質させる処理を該保護層の表面に対して施す工程が行われ、例えば、有機表面の上方、例えば、保護層の上に金属層を形成するための工程などが行われる。
尚、実施例中、ゲート絶縁層の純水に対する接触角は、コンタクトアングルメーター「CA-A」型(KYOWA KAIMENKAGAKU社製)を用いて測定した。接触角の測定において、純水としては、脱イオン水を用いた。
(高分子化合物1の製造)
スチレン(和光純薬製)2.06g、2,3,4,5,6-ペンタフルオロスチレン(アルドリッチ製)2.43g、2-〔O-[1’-メチルプロピリデンアミノ]カルボキシアミノ〕エチル-メタクリレート(昭和電工製、商品名「カレンズMOI-BM」)1.00g、2,2’-アゾビス(2-メチルプロピオニトリル)0.06g、2-ヘプタノン(和光純薬製)14.06gを、50ml耐圧容器(エース製)に入れ、窒素をバブリングした後、密栓し、60℃のオイルバス中で48時間重合させて、高分子化合物1が溶解している粘稠な2-ヘプタノン溶液を得た。高分子化合物1は下記繰り返し単位を有している。ここで、( )の添え数字は繰り返し単位のモル比を示している。
(有機表面保護層組成物の製造)
タングステン(V)エトキシド(ゲレスト社製)1.30g、金属アルコキシドの安定化剤であるアセチルアセトン(和光純薬製)0.32g、2,3,4,5,6-ペンタフルオロトルエン4.00gを10mlのサンプル瓶に入れ、攪拌しながら混合して均一な有機表面保護層組成物である塗布液を調製した。
合成例1で得た高分子化合物1の2-ヘプタノン溶液3.00g、1,3-ビス(3’-アミノフェノキシ)ベンゼン0.091g及び2-ヘプタノン1.50gを10mlのサンプル瓶に入れ、攪拌しながら混合して均一な溶液を調製した。
次いで、有機表面保護層組成物を孔径0.2μmのメンブレンフィルターを用いてろ過し、ろ液を前記有機層上にスピンコート法により塗布した後、ホットプレート上で150℃で30分間焼成し、約20nmの厚みを有する有機表面保護層を得た。
次いで、有機表面保護層上に電極材料であるモリブデンをスパッタ法で積層した。その後、モリブデンエッチング液を用いて積層したモリブデンをエッチングして除去した。次いで、有機表面保護層をアルカリ性エッチング液を用いて除去し、有機層の表面を露出させた。ここで、アルカリ性エッチング液としては、「メルストリップ TI-3991」(メルテックス株式会社製)を用いた。
実施例1と同様にして有機層を作製し、その後、有機表面保護層を形成しない以外は実施例1と同様にして、電極を形成する前、及び電極を除去した後の有機層の純水に対する接触角を測定した。電極除去後の有機層の純水に対する接触角は、25°であり、電極の形成による有機層の純水に対する接触角の変化は64.5°であり、スパッタダメージが大きいことがわかった。
(有機表面保護層組成物の製造)
タングステン(V)エトキシド(ゲレスト社製)1.30g、金属アルコキシドの安定化剤であるアセチルアセトン(和光純薬社製)0.32g、PGMEA(プロピレングリコールモノメチルエーテルアセテート)4.00gを10mlのサンプル瓶に入れ、攪拌しながら混合して均一な有機表面保護層組成物である塗布液を調製した。
(高分子化合物2の合成)
4-アミノスチレン(アルドリッチ製)3.50g、2,3,4,5,6-ペンタフルオロスチレン(アルドリッチ製)13.32g、2,2’-アゾビス(2-メチルプロピオニトリル)0.08g、2-ヘプタノン(和光純薬製)25.36gを、125ml耐圧容器(エース製)に入れ、窒素をバブリングした後、密栓し、60℃のオイルバス中で48時間重合させて、高分子化合物2が溶解している粘稠な2-ヘプタノン溶液を得た。高分子化合物2は下記繰り返し単位を有している。ここで、( )の添え数字は繰り返し単位のモル比を示している。
(高分子化合物3の合成)
9,9-ジ-n-オクチルフルオレン-2,7-ジ(エチレンボロネート)6.40g、及び5,5’-ジブロモ-2,2’-バイチオフェン4.00gを含むトルエン(80mL)中に、窒素下において、テトラキス(トリフェニルホスフィン)パラジウム0.18g、メチルトリオクチルアンモニウムクロライド(Aldrich製、商品名「Aliquat 336」(登録商標))1.0g、及び2Mの炭酸ナトリウム水溶液24mLを加えた。この混合物を激しく攪拌し、加熱して24時間還流した。粘稠な反応混合物をアセトン500mLに注ぎ、繊維状の黄色のポリマーを沈澱させた。このポリマーを濾過によって集め、アセトンで洗浄し、真空オーブンにおいて60℃で一晩乾燥させた。得られたポリマーを高分子化合物3とよぶ。高分子化合物3は、下記繰り返し単位を有している。nは繰り返し単位の数を示している。高分子化合物3の標準ポリスチレンから求めた重量平均分子量は、61000であった(測定条件:島津製GPC、「Tskgel super HM-H」1本+「Tskgel super H2000」1本、移動相=THF)。
(有機薄膜トランジスタの製造)
本発明の有機薄膜トランジスタの実施例を、図1から図7を用いて説明する。
最初に、洗浄済の基板1上にスパッタリング法でMo(モリブデン)層を形成し、フォトリソグラフィにより、ゲート電極2を形成した。フォトリソグラフィにおいて、フォトレジストは、東京応化工業社製「TFR-H PL」を、現像液は、ナガセケムテックス社製「NPD-18」を、レジスト剥離液は、東京応化工業社製「106」を、Moエッチング液は、関東化学社製の「S-80520」を使用した。フォトリソグラフィは、以下の工程により行った。Mo層上にフォトレジスト「TFR-H PL」の膜を形成し、フォトマスクを介して365nm UV光を照射した。次いで、現像液「NPD-18」を用いてフォトレジストの現像を行った。次いで、現像したフォトレジストをマスクとして、Mo層のMoが露出している部分を、Moエッチング液「S-80520」を用いて除去し、レジスト剥離液「106」を用いて残りのフォトレジストを剥離して、ゲート電極2のパターニングを行った。
実施例3に対する比較例として、基板(ガラス)1、該基板1上にゲート電極(Mo)2、該ゲート電極2上にゲート絶縁層(有機絶縁層)3、該ゲート絶縁層3上に実施例3の第2導電層5と同材料の単一金属1層による単層のソース電極、及び、ドレイン電極を形成し、該ソース電極と該ドレイン電極とを覆う有機半導体層を形成して、有機薄膜トランジスタを製造した。
実施例3と同様の方法で、基板1上にゲート電極2を形成し、該ゲート電極上にゲート絶縁層3を形成した。該ゲート絶縁層のゲート絶縁層表面ラフネスRa及びゲート絶縁層表面接触角を測定した。結果を表2のプロセス未通過ゲート絶縁層の欄に示す。
2…ゲート電極、
3…ゲート絶縁層、
4…第1導電層、
5…第2導電層、
7…ソース電極、
7’…ドレイン電極、
8…有機半導体層、
9…マスク、
10…保護層。
Claims (9)
- (A)金属アルコキシド、(B)該金属アルコキシドの安定化剤、及び、(C)該金属アルコキシドを溶解する有機溶媒を含有する有機表面保護層組成物。
- 前記金属アルコキシドが、タングステンアルコキシドである請求項1に記載の有機表面保護層組成物。
- 前記金属アルコキシドの安定化剤が、α-ヒドロキシケトン、α-ヒドロキシケトイミン、エタノールアミン、α-ジケトン、α-ジケトイミン、β-ジケトン、及びα-ヒドロキシカルボン酸からなる群より選ばれる一種以上の化合物である請求項1又は2に記載の有機表面保護層組成物。
- 前記有機溶媒が、フッ素原子を有する有機溶媒である請求項1~3のいずれかに記載の有機表面保護層組成物。
- 前記フッ素原子を有する有機溶媒が、フッ素原子を有する芳香族化合物である請求項4に記載の有機表面保護層組成物。
- 請求項1~5のいずれかに記載の有機表面保護層組成物を有機物の表面に塗布する工程;
ゾル-ゲル法により有機表面保護層組成物に含まれる金属アルコキシドを硬化させて有機表面保護層を形成する工程;
前記有機物の表面に対して直接施すと該表面を変質させる処理を該有機表面保護層の表面に対して施す工程;及び
エッチングすることにより該有機表面保護層を除去する工程;
を包含する有機物の表面の保護方法。 - 請求項6記載の方法を用いて保護された表面を有する有機層。
- 請求項6記載の方法を用いて保護された表面を有する有機薄膜トランジスタゲート絶縁層。
- 請求項8記載の有機薄膜トランジスタゲート絶縁層を有する有機薄膜トランジスタ。
Priority Applications (2)
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US13/503,973 US20120273786A1 (en) | 2009-10-27 | 2010-10-27 | Organic surface protective layer composition and method for protecting organic surface |
KR1020127013281A KR20120085851A (ko) | 2009-10-27 | 2010-10-27 | 유기 표면 보호층 조성물 및 유기 표면 보호 방법 |
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JP2009-246688 | 2009-10-27 | ||
JP2009246688 | 2009-10-27 |
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WO2011052618A1 true WO2011052618A1 (ja) | 2011-05-05 |
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PCT/JP2010/069025 WO2011052618A1 (ja) | 2009-10-27 | 2010-10-27 | 有機表面保護層組成物及び有機表面保護方法 |
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US (1) | US20120273786A1 (ja) |
JP (1) | JP2011116959A (ja) |
KR (1) | KR20120085851A (ja) |
TW (1) | TW201124489A (ja) |
WO (1) | WO2011052618A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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EP2797110A4 (en) * | 2011-12-21 | 2015-08-26 | Sumitomo Chemical Co | INSULATION LAYER MATERIAL FOR AN ELECTRONIC DEVICE AND ELECTRONIC DEVICE |
Families Citing this family (1)
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JP5740836B2 (ja) * | 2009-10-29 | 2015-07-01 | 住友化学株式会社 | 光電変換素子 |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63258959A (ja) * | 1987-01-07 | 1988-10-26 | Tokyo Ohka Kogyo Co Ltd | 金属酸化膜形成用塗布液 |
JPH01263161A (ja) * | 1988-04-14 | 1989-10-19 | Showa Denko Kk | 含フッ素コーティング剤およびその製造方法 |
JPH01263158A (ja) * | 1988-04-14 | 1989-10-19 | Showa Denko Kk | 含フッ素コーティング剤およびその製造方法 |
JP2007196162A (ja) * | 2006-01-27 | 2007-08-09 | Nippon Soda Co Ltd | フッ素系薄膜基材の製造方法 |
WO2008059840A1 (fr) * | 2006-11-13 | 2008-05-22 | Nippon Soda Co., Ltd. | Procédé de formation d'un film mince organique |
JP2009048986A (ja) * | 2006-09-20 | 2009-03-05 | Sumitomo Metal Mining Co Ltd | 透明導電膜形成用塗布液及び透明導電膜の製造方法並びに透明導電膜 |
JP2009224737A (ja) * | 2008-03-19 | 2009-10-01 | Fujifilm Corp | 酸化ガリウムを主成分とする金属酸化物からなる絶縁膜およびその製造方法 |
-
2010
- 2010-10-27 JP JP2010240292A patent/JP2011116959A/ja not_active Withdrawn
- 2010-10-27 US US13/503,973 patent/US20120273786A1/en not_active Abandoned
- 2010-10-27 TW TW099136657A patent/TW201124489A/zh unknown
- 2010-10-27 KR KR1020127013281A patent/KR20120085851A/ko not_active Application Discontinuation
- 2010-10-27 WO PCT/JP2010/069025 patent/WO2011052618A1/ja active Application Filing
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63258959A (ja) * | 1987-01-07 | 1988-10-26 | Tokyo Ohka Kogyo Co Ltd | 金属酸化膜形成用塗布液 |
JPH01263161A (ja) * | 1988-04-14 | 1989-10-19 | Showa Denko Kk | 含フッ素コーティング剤およびその製造方法 |
JPH01263158A (ja) * | 1988-04-14 | 1989-10-19 | Showa Denko Kk | 含フッ素コーティング剤およびその製造方法 |
JP2007196162A (ja) * | 2006-01-27 | 2007-08-09 | Nippon Soda Co Ltd | フッ素系薄膜基材の製造方法 |
JP2009048986A (ja) * | 2006-09-20 | 2009-03-05 | Sumitomo Metal Mining Co Ltd | 透明導電膜形成用塗布液及び透明導電膜の製造方法並びに透明導電膜 |
WO2008059840A1 (fr) * | 2006-11-13 | 2008-05-22 | Nippon Soda Co., Ltd. | Procédé de formation d'un film mince organique |
JP2009224737A (ja) * | 2008-03-19 | 2009-10-01 | Fujifilm Corp | 酸化ガリウムを主成分とする金属酸化物からなる絶縁膜およびその製造方法 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2797110A4 (en) * | 2011-12-21 | 2015-08-26 | Sumitomo Chemical Co | INSULATION LAYER MATERIAL FOR AN ELECTRONIC DEVICE AND ELECTRONIC DEVICE |
US9362512B2 (en) | 2011-12-21 | 2016-06-07 | Sumitomo Chemical Company, Limited | Electronic device insulating layer material capable of forming an insulating layer at low temperature |
Also Published As
Publication number | Publication date |
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KR20120085851A (ko) | 2012-08-01 |
TW201124489A (en) | 2011-07-16 |
US20120273786A1 (en) | 2012-11-01 |
JP2011116959A (ja) | 2011-06-16 |
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