WO2008145172A1 - Tri-tert-butylcarboxyphthalocyanines, uses thereof and a process for their preparation - Google Patents
Tri-tert-butylcarboxyphthalocyanines, uses thereof and a process for their preparation Download PDFInfo
- Publication number
- WO2008145172A1 WO2008145172A1 PCT/EP2007/055110 EP2007055110W WO2008145172A1 WO 2008145172 A1 WO2008145172 A1 WO 2008145172A1 EP 2007055110 W EP2007055110 W EP 2007055110W WO 2008145172 A1 WO2008145172 A1 WO 2008145172A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- substituted
- tert
- butyl
- carboxyphthalocyanine
- tri
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims description 16
- 230000008569 process Effects 0.000 title claims description 8
- 238000002360 preparation method Methods 0.000 title description 7
- 239000000203 mixture Substances 0.000 claims abstract description 25
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims abstract description 18
- 125000000904 isoindolyl group Chemical group C=1(NC=C2C=CC=CC12)* 0.000 claims abstract description 16
- 238000004519 manufacturing process Methods 0.000 claims abstract description 13
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 claims abstract description 8
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 claims abstract description 7
- 150000001875 compounds Chemical class 0.000 claims description 42
- PTFCDOFLOPIGGS-UHFFFAOYSA-N Zinc dication Chemical compound [Zn+2] PTFCDOFLOPIGGS-UHFFFAOYSA-N 0.000 claims description 22
- 238000007254 oxidation reaction Methods 0.000 claims description 9
- 239000004065 semiconductor Substances 0.000 claims description 9
- HTSGKJQDMSTCGS-UHFFFAOYSA-N 1,4-bis(4-chlorophenyl)-2-(4-methylphenyl)sulfonylbutane-1,4-dione Chemical compound C1=CC(C)=CC=C1S(=O)(=O)C(C(=O)C=1C=CC(Cl)=CC=1)CC(=O)C1=CC=C(Cl)C=C1 HTSGKJQDMSTCGS-UHFFFAOYSA-N 0.000 claims description 8
- 239000003153 chemical reaction reagent Substances 0.000 claims description 8
- 229920001577 copolymer Polymers 0.000 claims description 7
- 239000011368 organic material Substances 0.000 claims description 7
- 230000003647 oxidation Effects 0.000 claims description 7
- 229920000642 polymer Polymers 0.000 claims description 7
- 125000001424 substituent group Chemical group 0.000 claims description 7
- 239000003792 electrolyte Substances 0.000 claims description 6
- 125000000524 functional group Chemical group 0.000 claims description 5
- -1 polyphenylenevinylene Polymers 0.000 claims description 5
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 claims description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 4
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 claims description 4
- 125000003342 alkenyl group Chemical group 0.000 claims description 4
- 125000000304 alkynyl group Chemical group 0.000 claims description 4
- 229910052799 carbon Chemical group 0.000 claims description 4
- 239000002322 conducting polymer Substances 0.000 claims description 4
- 229920001940 conductive polymer Polymers 0.000 claims description 4
- LNOPIUAQISRISI-UHFFFAOYSA-N n'-hydroxy-2-propan-2-ylsulfonylethanimidamide Chemical compound CC(C)S(=O)(=O)CC(N)=NO LNOPIUAQISRISI-UHFFFAOYSA-N 0.000 claims description 4
- 230000001590 oxidative effect Effects 0.000 claims description 4
- 229920000553 poly(phenylenevinylene) Polymers 0.000 claims description 4
- 229920002554 vinyl polymer Polymers 0.000 claims description 4
- 125000002534 ethynyl group Chemical group [H]C#C* 0.000 claims description 3
- 125000002485 formyl group Chemical group [H]C(*)=O 0.000 claims description 3
- 239000012286 potassium permanganate Substances 0.000 claims description 3
- UKLNMMHNWFDKNT-UHFFFAOYSA-M sodium chlorite Chemical compound [Na+].[O-]Cl=O UKLNMMHNWFDKNT-UHFFFAOYSA-M 0.000 claims description 3
- 229960002218 sodium chlorite Drugs 0.000 claims description 3
- 125000003172 aldehyde group Chemical group 0.000 claims description 2
- 125000004448 alkyl carbonyl group Chemical group 0.000 claims description 2
- 125000002768 hydroxyalkyl group Chemical group 0.000 claims description 2
- 125000004029 hydroxymethyl group Chemical group [H]OC([H])([H])* 0.000 claims description 2
- 125000004674 methylcarbonyl group Chemical group CC(=O)* 0.000 claims description 2
- 230000002829 reductive effect Effects 0.000 claims description 2
- 239000000975 dye Substances 0.000 abstract description 20
- 210000004027 cell Anatomy 0.000 description 16
- 238000006243 chemical reaction Methods 0.000 description 16
- 239000010408 film Substances 0.000 description 14
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 12
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 7
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 7
- 239000000243 solution Substances 0.000 description 7
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 5
- 238000001228 spectrum Methods 0.000 description 5
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 5
- 239000007787 solid Substances 0.000 description 4
- 239000007858 starting material Substances 0.000 description 4
- ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical compound [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 description 3
- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical compound CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 description 3
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 3
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- XMBWDFGMSWQBCA-UHFFFAOYSA-N hydrogen iodide Chemical compound I XMBWDFGMSWQBCA-UHFFFAOYSA-N 0.000 description 3
- 229910052740 iodine Inorganic materials 0.000 description 3
- 239000011630 iodine Substances 0.000 description 3
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 3
- 239000002105 nanoparticle Substances 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 3
- 239000007800 oxidant agent Substances 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 239000002904 solvent Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 239000011787 zinc oxide Substances 0.000 description 3
- RUDATBOHQWOJDD-UHFFFAOYSA-N (3beta,5beta,7alpha)-3,7-Dihydroxycholan-24-oic acid Natural products OC1CC2CC(O)CCC2(C)C2C1C1CCC(C(CCC(O)=O)C)C1(C)CC2 RUDATBOHQWOJDD-UHFFFAOYSA-N 0.000 description 2
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 2
- 238000001074 Langmuir--Blodgett assembly Methods 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000002776 aggregation Effects 0.000 description 2
- 238000004220 aggregation Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- RUDATBOHQWOJDD-BSWAIDMHSA-N chenodeoxycholic acid Chemical compound C([C@H]1C[C@H]2O)[C@H](O)CC[C@]1(C)[C@@H]1[C@@H]2[C@@H]2CC[C@H]([C@@H](CCC(O)=O)C)[C@@]2(C)CC1 RUDATBOHQWOJDD-BSWAIDMHSA-N 0.000 description 2
- 229960001091 chenodeoxycholic acid Drugs 0.000 description 2
- 239000012043 crude product Substances 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 230000031700 light absorption Effects 0.000 description 2
- 239000011244 liquid electrolyte Substances 0.000 description 2
- 239000003960 organic solvent Substances 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 239000007784 solid electrolyte Substances 0.000 description 2
- 238000004528 spin coating Methods 0.000 description 2
- 239000010409 thin film Substances 0.000 description 2
- 239000011701 zinc Substances 0.000 description 2
- RYHBNJHYFVUHQT-UHFFFAOYSA-N 1,4-Dioxane Chemical compound C1COCCO1 RYHBNJHYFVUHQT-UHFFFAOYSA-N 0.000 description 1
- 238000005160 1H NMR spectroscopy Methods 0.000 description 1
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 1
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- 238000005033 Fourier transform infrared spectroscopy Methods 0.000 description 1
- 206010070834 Sensitisation Diseases 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 238000002835 absorbance Methods 0.000 description 1
- 125000000217 alkyl group Chemical group 0.000 description 1
- HSFWRNGVRCDJHI-UHFFFAOYSA-N alpha-acetylene Natural products C#C HSFWRNGVRCDJHI-UHFFFAOYSA-N 0.000 description 1
- NUZWLKWWNNJHPT-UHFFFAOYSA-N anthralin Chemical compound C1C2=CC=CC(O)=C2C(=O)C2=C1C=CC=C2O NUZWLKWWNNJHPT-UHFFFAOYSA-N 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 150000001721 carbon Chemical class 0.000 description 1
- 125000004432 carbon atom Chemical group C* 0.000 description 1
- 150000001722 carbon compounds Chemical class 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 229930002875 chlorophyll Natural products 0.000 description 1
- 235000019804 chlorophyll Nutrition 0.000 description 1
- ATNHDLDRLWWWCB-AENOIHSZSA-M chlorophyll a Chemical compound C1([C@@H](C(=O)OC)C(=O)C2=C3C)=C2N2C3=CC(C(CC)=C3C)=[N+]4C3=CC3=C(C=C)C(C)=C5N3[Mg-2]42[N+]2=C1[C@@H](CCC(=O)OC\C=C(/C)CCC[C@H](C)CCC[C@H](C)CCCC(C)C)[C@H](C)C2=C5 ATNHDLDRLWWWCB-AENOIHSZSA-M 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 239000008367 deionised water Substances 0.000 description 1
- 239000000539 dimer Substances 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 229960002311 dithranol Drugs 0.000 description 1
- 230000005670 electromagnetic radiation Effects 0.000 description 1
- 238000000921 elemental analysis Methods 0.000 description 1
- 238000000295 emission spectrum Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 238000003306 harvesting Methods 0.000 description 1
- 210000004754 hybrid cell Anatomy 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 238000000816 matrix-assisted laser desorption--ionisation Methods 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 238000005442 molecular electronic Methods 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 239000002086 nanomaterial Substances 0.000 description 1
- 239000012454 non-polar solvent Substances 0.000 description 1
- 239000012044 organic layer Substances 0.000 description 1
- 229920000620 organic polymer Polymers 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 238000013082 photovoltaic technology Methods 0.000 description 1
- IEQIEDJGQAUEQZ-UHFFFAOYSA-N phthalocyanine Chemical compound N1C(N=C2C3=CC=CC=C3C(N=C3C4=CC=CC=C4C(=N4)N3)=N2)=C(C=CC=C2)C2=C1N=C1C2=CC=CC=C2C4=N1 IEQIEDJGQAUEQZ-UHFFFAOYSA-N 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 239000002798 polar solvent Substances 0.000 description 1
- 150000004032 porphyrins Chemical class 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 229910052814 silicon oxide Inorganic materials 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 description 1
- 229910001887 tin oxide Inorganic materials 0.000 description 1
- 238000002371 ultraviolet--visible spectrum Methods 0.000 description 1
- 238000001429 visible spectrum Methods 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D487/00—Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, not provided for by groups C07D451/00 - C07D477/00
- C07D487/22—Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, not provided for by groups C07D451/00 - C07D477/00 in which the condensed system contains four or more hetero rings
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
- C09B47/00—Porphines; Azaporphines
- C09B47/04—Phthalocyanines abbreviation: Pc
- C09B47/08—Preparation from other phthalocyanine compounds, e.g. cobaltphthalocyanineamine complex
- C09B47/12—Obtaining compounds having alkyl radicals, or alkyl radicals substituted by hetero atoms, bound to the phthalocyanine skeleton
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
- C09B47/00—Porphines; Azaporphines
- C09B47/04—Phthalocyanines abbreviation: Pc
- C09B47/08—Preparation from other phthalocyanine compounds, e.g. cobaltphthalocyanineamine complex
- C09B47/24—Obtaining compounds having —COOH or —SO3H radicals, or derivatives thereof, directly bound to the phthalocyanine radical
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M14/00—Electrochemical current or voltage generators not provided for in groups H01M6/00 - H01M12/00; Manufacture thereof
- H01M14/005—Photoelectrochemical storage cells
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K85/00—Organic materials used in the body or electrodes of devices covered by this subclass
- H10K85/30—Coordination compounds
- H10K85/311—Phthalocyanine
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G9/00—Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture
- H01G9/20—Light-sensitive devices
- H01G9/2027—Light-sensitive devices comprising an oxide semiconductor electrode
- H01G9/2031—Light-sensitive devices comprising an oxide semiconductor electrode comprising titanium oxide, e.g. TiO2
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G9/00—Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture
- H01G9/20—Light-sensitive devices
- H01G9/2059—Light-sensitive devices comprising an organic dye as the active light absorbing material, e.g. adsorbed on an electrode or dissolved in solution
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/549—Organic PV cells
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Definitions
- the present invention relates to substituted carboxyphthalocyanines, to their uses, e.g., in the manufacture of organic and hybrid solar cells or as a photoactive dyes for molecular photovoltaic devices, and to a process for obtaining said compounds.
- Solar or photovoltaic cells are devices that allow the conversion of light energy into electric power.
- the conversion of solar radiation into electricity has been made almost exclusively by means of devices based on an inorganic material: silicon.
- the average efficiency of these cells is ca. 25%.
- producing electricity through this system is still expensive.
- phthalocyanines are starting to play a relevant role.
- the phthalocyanines are synthetic analogues of porphyrins, compounds that are components of several systems like haemoglobine and chlorophyll. They are chemically and thermically robust and stable against electromagnetic radiations.
- Phthalocyanines are very lively compounds (green and blue) largely used in the industry ranging from dyes and pigments in paintings to active components in CDs.
- Incorporated in an organic or inorganic structure they can act as "antenna" elements, harvesting light, since they absorb strongly in the same region of the emission spectrum of solar light.
- phthalocyanines fulfill all the necessary conditions for being incorporated as essential components of photovoltaic devices.
- mixed with an organic polymer or in pure state they can be processed as thin films by the spin-coating technique.
- these compounds are soluble in organic solvents and can be processed by the Langmuir- Blodgett technique and some of them show liquid crystal characteristics that enhance their possible technological applications in the mentioned field.
- the present invention not only intends to offer synthetic process for the medium- scale preparation of carboxyphthalocyanines, but also to improve the optical properties and stability of these compounds, as well as their processability in order to be applied as active elements to solar cells with organic basis.
- Inventors have found that certain phthalocyanines gather many of the desired features at the same time: optical and chemical stability, solar light absorption efficiency, low aggregation and capability to anchor to polymeric or inorganic substrates like silicon oxide, zinc oxide and titanium oxide, among others, that allow their application to the fabrication of photovoltaic devices with a higher efficiency than that described so far in the literature.
- Figure 1 is a graph showing the Incident Photon to Current Conversion Efficiency (IPCE) at different wavelengths for a mixture comprising several regioisomers of 9(10), 16(17), 23(24)-tri-tert-butyl-2-carboxy-5,28:14,19-d ⁇ mino-7,12:21,26- dinitrilo-tetrabenzo[c, h, m, r][l, 6, 11, 16]tetraazacycloeicosinato-(2 " )-N 29 , N 30 , N 31 , N 32 zinc (II), identified as TTl (Example 1) in this description.
- IPCE Incident Photon to Current Conversion Efficiency
- Figure 2 is a graph showing the light-to-electricity conversion efficiency of a molecular photovoltaic device comprising a mesoporous semiconducting film of titanium oxide nanoparticles, sensitised with the same mixture of 9(10), 16(17), 23(24)-tri-tert- butyl-2-carboxy derivatives (TTl) mentioned above and a red/ox electrolyte
- Figure 3 is a graph showing the visible spectrum of TTl in the presence of the different amounts of chenodeoxycholic acid (CHENO) mentioned in the figure.
- the spectra were measured using a Shimadzu spectrophotometer.
- Figure 4 is a graph showing the Incident Photon to Current Conversion Efficiency (IPCE) at different wavelengths covering practically all the Visible-IR solar spectra for different compounds, namely, the mixture of 9(10), 16(17), 23(24)-tri-tert- butyl-2-carboxy derivatives (TTl) mentioned above, JK2 (3- ⁇ 5'-[N,N-bis(9,9- dimethylfluorene-2-yl)phenyl]-2,2'-bithiophene-5-yl ⁇ -2-cyanoacrylic acid) and a mixture ofJK2 and TTl.
- IPCE Incident Photon to Current Conversion Efficiency
- the present invention relates to a substituted carboxyphthalocyanine of structural formula I,
- both the tert-butyl and carboxyl groups located in the four iso indole rings can be located indiscriminately in any of the four positions of the corresponding benzene ring, its regioisomers and mixtures thereof.
- regioisomers are position isomers having the same functional group or substituent in different positions; regioisomers have the same molecular formula but different chemical and physical properties.
- the carboxyl group located in the isoindole ring is located in any of positions 1 or 2 (equivalents to positions 4 and 3, respectively) of the benzene ring of the corresponding isoindole ring. In a preferred embodiment, the carboxyl group is located in position 2 of said benzene ring.
- the tert-butyl groups located in the three isoindole rings are located indiscriminately in any of the two central positions of each one of the corresponding benzene rings, i.e., in positions 9 or 10 [9(1O)], 16 or 17 [16(17)], and 23 or 24 [23(24)] of the isoindole rings of compound I.
- the compound I is selected from the group of regioisomers consisting of:
- the compound I comprises a mixture of two or more of said regioisomers in any ratio among them, e.g., in a statistical ratio (i.e., in the ratio of regioisomers resulting from the production process taking into account, among other things, the starting materials and the steric hinderance and electronic influence due to their substitutents).
- the compound I is a mixture of regioisomers of 9(10), 16(17), 23(24)-tri-tert-butyl-2-carboxy-5,28:14,19-diimino- 7,12:21,26-dinitrilo-tetrabenzo[c, h, m, r][l, 6, 11, 16]tetraazacycloeicosinato-(2 " )-N 29 , N 30 , N 31 , N 32 zinc (II) (mixture of regioisomers) identified in this description as TTl.
- the present invention relates to a process for obtaining a compound of formula I which comprises reacting an adequately substituted ⁇ -tert- butylphthalocyanine of structural formula II
- tert-bvXy ⁇ groups located in the three isoindole rings can be located indiscriminately in any of the four positions of the corresponding benzene ring, and
- R 1 represents a functional group or a carbon-containing substituent that can be converted into a carboxylic group, said R 1 group being located indiscriminately in any of the four positions of the corresponding benzene ring, with an adequate oxidizing reagent, to yield the compound I.
- R 1 represents a functional group or a substituent that can be converted into a carboxylic group, in one or more steps, with an appropriate reagent, to yield the compound I.
- the preferred R 1 groups or substituents are carbon-containing groups such as hydroxyalkyl, alkylcarbonyl, aldehyde, alkenyl or alkynyl, among others, wherein the terms "alkyl”, “alkenyl” and “alkynyl” represent, linear or branched, saturated or unsaturated carbon-containing chains having one (two in the cases of alkenyl and alkynyl) to sixteen carbon atoms, such as methyl, n-octyl, n-hexadecyl, ethenyl (vinyl), ethynyl, etc., optionally substituted with aromatic groups, e.g., phenyl groups, etc.
- R 1 is formyl or vinyl.
- R 1 is located in position 1 or 2 of the corresponding benzene ring. In a preferred embodiment, R 1 is located in position 2 of the benzene ring of the isoindole ring (compound II).
- the tert-butyl groups located in the three isoindole rings are located indiscriminately in any of the two central positions of each one of the corresponding benzene rings, i.e., in positions 9 or 10 [9(1O)], 16 or 17 [16(17)], and 23 or 24 [23(24)] of the isoindole rings of compound II.
- the compounds II can exist in the form of pure compounds (regioisomers) or in the form of mixtures of two or more regioisomers.
- the starting compounds of formula II that can be prepared following methods described in the state of the art (see for example, Gouloumis, A; Liu, S.
- the starting compounds II can be used as pure compounds (regioisomers) or as mixtures of two or more regioisomers.
- the reagents for the conversion of compounds II into the title compounds I are suitable oxidizing reagents.
- oxidizing reagents include potassium permanganate, ozone, sodium chlorite/sulfamic acid, and any other reagent adequate to each one of the functional group or carbon-containing substituents above mentioned.
- the oxidation of a compound II, wherein R 1 represents an aldehyde group is performed with an adequate oxidizing agent, such as sodium chlorite/sulfamic acid, etc.
- the oxidation of a compound II, wherein R 1 represents a hydroxymethyl or methylcarbonyl group is performed with an adequate oxidizing agent, such as potassium permanganate, etc.
- an adequate oxidizing agent such as potassium permanganate, etc.
- the oxidation of a compound II, wherein R 1 represents a vinyl or ethynyl group is performed with an adequate oxidizing agent, such as ozone in non-reductive conditions, etc.
- the oxidation reaction can take place in both polar and non-polar solvents according to the reagent employed, as it is well known in the technique for this kind of oxidations.
- Illustrative, non-limitative examples of said solvents include acetone, dichloromethane, etc.
- Temperatures for carrying out the oxidation reaction (conversion) can vary within a broad range, however, conversions taking place between -78 0 C and 100 0 C are preferred.
- compounds I can be used in the fabrication (manufacture) of organic and hybrid solar cells, where they can be used as pure compounds (regioisomers) or as mixtures of two or more of them, i.e. two or more regioisomers, preferably, as a mixture of two or more regioisomers.
- compounds I can also be mixed in any ratio with other dye(s) or with organic material(s), electronically active or non-active ones, such as an organic conducting polymer, oligomer or copolymer, e.g., polyphenylenevinylene (PPV) or a polytiophene, or they can be covalently incorporated to the backbone of a polymer, oligomer or copolymer.
- organic conducting polymer e.g., polyphenylenevinylene (PPV) or a polytiophene
- the compounds I can be adsorbed into a nanocrystalline semiconductor, such as a nanocrystalline semiconducting film, e.g., titanium oxide or zinc oxide films, having the advantage that the compounds are not aggregated on the inorganic surface.
- a nanocrystalline semiconductor such as a nanocrystalline semiconducting film, e.g., titanium oxide or zinc oxide films
- the invention relates to an organic or hybrid solar cell comprising a compound I, optionally mixed with a dye or with an organic material, electronically active or not, or covalently incorporated to the backbone of a polymer, oligomer or copolymer.
- a hybrid solar cell comprising a compound I adsorbed in a nanocrystalline semiconductor, such as a nanocrystalline semiconducting film, e.g., titanium oxide or zinc oxide films.
- the compounds I have a strong absorption (Q Band) around 700 nm and are soluble in organic solvents like tetrahydrofurane, acetone, acetonitrile, methanol, dioxane and diethyl ether, which have great advantages in the practical application of the products of this invention (compounds I), that have not been described in the previous scientific literature, neither as chemical products nor as molecular organic materials with adequate properties to be used in photovoltaic devices.
- compounds I can also be used as photoactive dyes in molecular photovoltaic devices comprising a mesoporous semiconductor, a photoactive dye and an electrolyte (e.g., a liquid or solid electrolyte) as well as photoactive dyes in molecular photovoltaic devices in the manufacture of tandem devices (combination of several, equal or different, molecular photovoltaic devices) or mesoporous co-sensitized films (combination of several dyes in the same device, "all-in-one") [i.e., the compound I can also be used as photoactive dyes to form, together with one or more additional dye(s), a mesoporous co-sensitized film].
- the photoactive dye is able to absorb light in the near infrared region of the solar spectra and efficiently convert the sunlight into electrical power.
- TTl a mixture of the compounds I named TTl, which is depicted below, and whose production is disclosed in Example 1 ,
- IPCE incident photon to current conversion conversion efficiency
- molecular photovoltaic devices made using a mesoporous semiconducting film of titanium oxide nanoparticles, sensitised with the same mixture of the regioisomers (TTl) depicted above, and a red/ox electrolyte (iodine/iodide), have efficiencies for the conversion of light-to-electricity higher than 3% when irradiated with simulated sun light 1.5 AM G at lOOmW/cm 2 ( Figure 2).
- the high efficiency in the solar light conversion of the molecular photovoltaic devices made of substituted carboxyphthalocyanines (TTl) is due to the lack of molecular aggregates of these compounds on the surface of the nanoparticles of TiC>2, which form the photoelectrode ( Figure 3).
- the lack of molecular aggregates is directly related to the new design of the molecules that prevents the aggregation.
- TTl can be combined with other dyes to widen the absorption of light into the visible region. This combination can allow the conversion of light-to-electrons in almost all the Visible-IR solar spectra ( Figure 4). Such property is extremely valuable for the preparation of tandem devices (combination of two or more devices that absorb light at different wavelengths) or "all-in-one" mesoporous sensitised film (co-sensitisation).
- the invention relates to a molecular photovoltaic device comprising a photoactive dye, wherein said photoactive dye comprises a substituted carboxyphthalocyanine I; said molecular photovoltaic device further comprises a mesoporous semiconductor and an electrolyte (e.g., a liquid or solid electrolyte).
- a photoactive dye comprises a substituted carboxyphthalocyanine I
- said molecular photovoltaic device further comprises a mesoporous semiconductor and an electrolyte (e.g., a liquid or solid electrolyte).
- the invention in another aspect, relates to a tandem device comprising a combination of two or more, equal or different, molecular photovoltaic devices wherein at least one of said molecular photovoltaic devices comprises a substituted carboxyphthalocyanine I as photoactive dye.
- the invention in a further aspect, relates to a co-sensitized mesoporous film comprising a substituted carboxyphthalocyanine I together with one or more additional dye(s).
- Method B A stirred solution of 9(10), 16(17), 23(24)-tri-tert-butyl-2-vinyl-
- TTl was used for preparing molecular photovoltaic devices (Example 2) which comprise a mesoporous semiconductor film sensitized with the photoactive dye TTl. Such devices are efficient converting sun light into electrical power in the near IR-region of the sun light spectrum, as indicated in the description.
- EXAMPLE 2 Preparation of molecular photovoltaic devices
- the molecular photovoltaic devices were made using as working electrode a transparent glass coated with a conducting metal oxide such as indium tin oxide (ITO) or fluorine doped tin oxide (FTO).
- a conducting metal oxide such as indium tin oxide (ITO) or fluorine doped tin oxide (FTO).
- ITO indium tin oxide
- FTO fluorine doped tin oxide
- TTl photoactive dye
- the working electrode was assembled into a device using a polymer that seals the working electrode together with a counter electrode made of the same conducting glass with a thin layer of a platinum catalyst.
- the electrolyte was made using as red/ox couple a solution of iodine/iodide, and it was introduced through holes that previously had been made on the counter electrode.
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