JP2020015898A - 増感色素、光電変換用増感色素組成物およびそれを用いた光電変換素子ならびに色素増感太陽電池 - Google Patents
増感色素、光電変換用増感色素組成物およびそれを用いた光電変換素子ならびに色素増感太陽電池 Download PDFInfo
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- 125000005843 halogen group Chemical group 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 125000003707 hexyloxy group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])O* 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- QNXSIUBBGPHDDE-UHFFFAOYSA-N indan-1-one Chemical group C1=CC=C2C(=O)CCC2=C1 QNXSIUBBGPHDDE-UHFFFAOYSA-N 0.000 description 1
- 125000003454 indenyl group Chemical group C1(C=CC2=CC=CC=C12)* 0.000 description 1
- 229910003437 indium oxide Inorganic materials 0.000 description 1
- RHZWSUVWRRXEJF-UHFFFAOYSA-N indium tin Chemical compound [In].[Sn] RHZWSUVWRRXEJF-UHFFFAOYSA-N 0.000 description 1
- AKUCEXGLFUSJCD-UHFFFAOYSA-N indium(3+);selenium(2-) Chemical compound [Se-2].[Se-2].[Se-2].[In+3].[In+3] AKUCEXGLFUSJCD-UHFFFAOYSA-N 0.000 description 1
- PJXISJQVUVHSOJ-UHFFFAOYSA-N indium(iii) oxide Chemical compound [O-2].[O-2].[O-2].[In+3].[In+3] PJXISJQVUVHSOJ-UHFFFAOYSA-N 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 125000000555 isopropenyl group Chemical group [H]\C([H])=C(\*)C([H])([H])[H] 0.000 description 1
- 150000002596 lactones Chemical class 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 229910052976 metal sulfide Inorganic materials 0.000 description 1
- 125000000956 methoxy group Chemical group [H]C([H])([H])O* 0.000 description 1
- 125000004492 methyl ester group Chemical group 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 229910000480 nickel oxide Inorganic materials 0.000 description 1
- 125000000449 nitro group Chemical group [O-][N+](*)=O 0.000 description 1
- 125000000018 nitroso group Chemical group N(=O)* 0.000 description 1
- QGLKJKCYBOYXKC-UHFFFAOYSA-N nonaoxidotritungsten Chemical compound O=[W]1(=O)O[W](=O)(=O)O[W](=O)(=O)O1 QGLKJKCYBOYXKC-UHFFFAOYSA-N 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- RFFLAFLAYFXFSW-UHFFFAOYSA-N ortho-dichlorobenzene Natural products ClC1=CC=CC=C1Cl RFFLAFLAYFXFSW-UHFFFAOYSA-N 0.000 description 1
- 150000004866 oxadiazoles Chemical class 0.000 description 1
- SIWVEOZUMHYXCS-UHFFFAOYSA-N oxo(oxoyttriooxy)yttrium Chemical compound O=[Y]O[Y]=O SIWVEOZUMHYXCS-UHFFFAOYSA-N 0.000 description 1
- GNRSAWUEBMWBQH-UHFFFAOYSA-N oxonickel Chemical compound [Ni]=O GNRSAWUEBMWBQH-UHFFFAOYSA-N 0.000 description 1
- BPUBBGLMJRNUCC-UHFFFAOYSA-N oxygen(2-);tantalum(5+) Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[Ta+5].[Ta+5] BPUBBGLMJRNUCC-UHFFFAOYSA-N 0.000 description 1
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 125000004115 pentoxy group Chemical group [*]OC([H])([H])C([H])([H])C([H])([H])C(C([H])([H])[H])([H])[H] 0.000 description 1
- 125000002080 perylenyl group Chemical group C1(=CC=C2C=CC=C3C4=CC=CC5=CC=CC(C1=C23)=C45)* 0.000 description 1
- 229920006287 phenoxy resin Polymers 0.000 description 1
- 239000013034 phenoxy resin Substances 0.000 description 1
- ACVYVLVWPXVTIT-UHFFFAOYSA-N phosphinic acid Chemical compound O[PH2]=O ACVYVLVWPXVTIT-UHFFFAOYSA-N 0.000 description 1
- 239000011941 photocatalyst Substances 0.000 description 1
- 108091008695 photoreceptors Proteins 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229920003227 poly(N-vinyl carbazole) Polymers 0.000 description 1
- 229920000553 poly(phenylenevinylene) Polymers 0.000 description 1
- 229920002492 poly(sulfone) Polymers 0.000 description 1
- 229920000767 polyaniline Polymers 0.000 description 1
- 229920001230 polyarylate Polymers 0.000 description 1
- 229920005668 polycarbonate resin Polymers 0.000 description 1
- 239000004431 polycarbonate resin Substances 0.000 description 1
- 229920001225 polyester resin Polymers 0.000 description 1
- 239000004645 polyester resin Substances 0.000 description 1
- 229920001223 polyethylene glycol Polymers 0.000 description 1
- 229920006324 polyoxymethylene Polymers 0.000 description 1
- 229920006380 polyphenylene oxide Polymers 0.000 description 1
- 229920000128 polypyrrole Polymers 0.000 description 1
- 229920005990 polystyrene resin Polymers 0.000 description 1
- 229920000123 polythiophene Polymers 0.000 description 1
- LPNYRYFBWFDTMA-UHFFFAOYSA-N potassium tert-butoxide Chemical compound [K+].CC(C)(C)[O-] LPNYRYFBWFDTMA-UHFFFAOYSA-N 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000002250 progressing effect Effects 0.000 description 1
- 125000004368 propenyl group Chemical group C(=CC)* 0.000 description 1
- 125000002572 propoxy group Chemical group [*]OC([H])([H])C(C([H])([H])[H])([H])[H] 0.000 description 1
- RUOJZAUFBMNUDX-UHFFFAOYSA-N propylene carbonate Chemical compound CC1COC(=O)O1 RUOJZAUFBMNUDX-UHFFFAOYSA-N 0.000 description 1
- 150000003219 pyrazolines Chemical class 0.000 description 1
- 238000006479 redox reaction Methods 0.000 description 1
- 229910052703 rhodium Inorganic materials 0.000 description 1
- 239000010948 rhodium Substances 0.000 description 1
- MHOVAHRLVXNVSD-UHFFFAOYSA-N rhodium atom Chemical compound [Rh] MHOVAHRLVXNVSD-UHFFFAOYSA-N 0.000 description 1
- 150000003303 ruthenium Chemical class 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- HQASLXJEKYYFNY-UHFFFAOYSA-N selenium(2-);titanium(4+) Chemical compound [Ti+4].[Se-2].[Se-2] HQASLXJEKYYFNY-UHFFFAOYSA-N 0.000 description 1
- HVEIXSLGUCQTMP-UHFFFAOYSA-N selenium(2-);zirconium(4+) Chemical compound [Se-2].[Se-2].[Zr+4] HVEIXSLGUCQTMP-UHFFFAOYSA-N 0.000 description 1
- 150000003346 selenoethers Chemical class 0.000 description 1
- 125000005372 silanol group Chemical group 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- XUARKZBEFFVFRG-UHFFFAOYSA-N silver sulfide Chemical compound [S-2].[Ag+].[Ag+] XUARKZBEFFVFRG-UHFFFAOYSA-N 0.000 description 1
- 229940056910 silver sulfide Drugs 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 229910052938 sodium sulfate Inorganic materials 0.000 description 1
- 235000011152 sodium sulphate Nutrition 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
- PJANXHGTPQOBST-UHFFFAOYSA-N stilbene Chemical class C=1C=CC=CC=1C=CC1=CC=CC=C1 PJANXHGTPQOBST-UHFFFAOYSA-N 0.000 description 1
- GKCNVZWZCYIBPR-UHFFFAOYSA-N sulfanylideneindium Chemical compound [In]=S GKCNVZWZCYIBPR-UHFFFAOYSA-N 0.000 description 1
- RCYJPSGNXVLIBO-UHFFFAOYSA-N sulfanylidenetitanium Chemical compound [S].[Ti] RCYJPSGNXVLIBO-UHFFFAOYSA-N 0.000 description 1
- 125000000542 sulfonic acid group Chemical group 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 229910001936 tantalum oxide Inorganic materials 0.000 description 1
- 239000002562 thickening agent Substances 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- 239000011135 tin Substances 0.000 description 1
- AFNRRBXCCXDRPS-UHFFFAOYSA-N tin(ii) sulfide Chemical compound [Sn]=S AFNRRBXCCXDRPS-UHFFFAOYSA-N 0.000 description 1
- 125000003960 triphenylenyl group Chemical group C1(=CC=CC=2C3=CC=CC=C3C3=CC=CC=C3C12)* 0.000 description 1
- ITRNXVSDJBHYNJ-UHFFFAOYSA-N tungsten disulfide Chemical compound S=[W]=S ITRNXVSDJBHYNJ-UHFFFAOYSA-N 0.000 description 1
- 229910001930 tungsten oxide Inorganic materials 0.000 description 1
- NCVWJDISIZHFQS-UHFFFAOYSA-N tylophorine B Natural products C12=CC(OC)=C(OC)C=C2C2=CC(OC)=CC=C2C2=C1CC1CCCN1C2 NCVWJDISIZHFQS-UHFFFAOYSA-N 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
- JLQFVGYYVXALAG-CFEVTAHFSA-N yasmin 28 Chemical compound OC1=CC=C2[C@H]3CC[C@](C)([C@](CC4)(O)C#C)[C@@H]4[C@@H]3CCC2=C1.C([C@]12[C@H]3C[C@H]3[C@H]3[C@H]4[C@@H]([C@]5(CCC(=O)C=C5[C@@H]5C[C@@H]54)C)CC[C@@]31C)CC(=O)O2 JLQFVGYYVXALAG-CFEVTAHFSA-N 0.000 description 1
- 229910052984 zinc sulfide Inorganic materials 0.000 description 1
- DRDVZXDWVBGGMH-UHFFFAOYSA-N zinc;sulfide Chemical compound [S-2].[Zn+2] DRDVZXDWVBGGMH-UHFFFAOYSA-N 0.000 description 1
- 229910001928 zirconium oxide Inorganic materials 0.000 description 1
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- 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
- Y02E10/542—Dye sensitized solar cells
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- 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
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- Photovoltaic Devices (AREA)
Abstract
Description
置換基を有していてもよい炭素原子数1〜18の直鎖状もしくは分岐状のアルキル基、
または置換基を有していてもよい炭素原子数6〜36の芳香族炭化水素基を表す。
R2およびR3は、水素原子、または置換基を有していてもよい炭素原子数1〜18の直鎖状もしくは分岐状のアルキル基を表す。
mは2〜8の整数を表す。
Xは2価基を表し、Zは1価基を表す。]
水素原子、
置換基を有していてもよい炭素原子数1〜18の直鎖状もしくは分岐状のアルキル基、
置換基を有していてもよい炭素原子数2〜18の直鎖状もしくは分岐状のアルケニル基、置換基を有していてもよい炭素原子数0〜18のアミノ基、
または置換基を有していてもよい炭素原子数0〜18のチオ基を表し、
nは0または1を表す。
nが0である場合、R10とR11、R12とR13は互いに結合して環を形成していてもよい。
また、nが1である場合、R10とR11またはR11とR14、R12とR13またはR13とR15は互いに結合して環を形成していてもよい。]
水素原子、
置換基を有していてもよい炭素原子数1〜18の直鎖状もしくは分岐状のアルキル基、
置換基を有していてもよい炭素原子数6〜36の芳香族炭化水素基、
または置換基を有していてもよい炭素原子数2〜36の複素環基を表し、
R18、R19は隣り合う基同士で互いに結合して環を形成していてもよい。]
水素原子、
置換基を有していてもよい炭素原子数1〜18の直鎖状もしくは分岐状のアルキル基、
置換基を有していてもよい炭素原子数1〜18の直鎖状もしくは分岐状のアルコキシ基、
または置換基を有していてもよい炭素原子数2〜18の直鎖状もしくは分岐状のアルケニル基を表す。
pは0〜4を表し、
R20とR21は、同一でも異なっていてもよく、それぞれ互いに結合し環を形成していてもよい。
R22は、水素原子、または炭素原子数1〜18の直鎖状もしくは分岐状のアルキル基を表す。
R23およびR24は、水素原子または酸性基を表し、少なくともR23またはR24のいずれか1個は酸性基であるものとする。]
R2およびR3は水素原子、
または置換基を有していてもよい炭素原子数1〜6の直鎖状のアルキル基であり、
また、mが3または4である増感色素。
フッ素原子、塩素原子、臭素原子、ヨウ素原子などのハロゲン原子;シアノ基;水酸基;ニトロ基;ニトロソ基;カルボキシル基;
メチルエステル基、エチルエステル基などのカルボン酸エステル基;
メチル基、エチル基、n−プロピル基、イソプロピル基、n−ブチル基、イソブチル基、s−ブチル基、t−ブチル基、n−ペンチル基、イソペンチル基、n−ヘキシル基、2−エチルヘキシル基、ヘプチル基、オクチル基、イソオクチル基、ノニル基、デシル基などの炭素原子数1〜18の直鎖状もしくは分岐状のアルキル基;
ビニル基、1−プロペニル基、アリル基、1−ブテニル基、2−ブテニル基、1−ペンテニル基、1−ヘキセニル基、イソプロペニル基、イソブテニル基など炭素原子数2〜20の直鎖状もしくは分岐状のアルケニル基;
メトキシ基、エトキシ基、プロポキシ基、t−ブトキシ基、ペンチルオキシ基、ヘキシルオキシ基などの炭素原子数1〜18の直鎖状もしくは分岐状のアルコキシ基;
フェニル基、ナフチル基、アントリル基、フェナントリル基、ピレニル基などの炭素原子数6〜30の芳香族炭化水素基;
ピリジル基、ピリミジリニル基、トリアジニル基、チエニル基、フリル基(フラニル基)、ピロリル基、イミダゾリル基、ピラゾリル基、トリアゾリル基、キノリル基、イソキノリル基、ナフチルジニル基、アクリジニル基、フェナントロリニル基、ベンゾフラニル基、ベンゾチエニル基、オキサゾリル基、インドリル基、カルバゾリル基、ベンゾオキサゾリル基、チアゾリル基、ベンゾチアゾリル基、キノキサリニル基、ベンゾイミダゾリル基、ピラゾリル基、ジベンゾフラニル基、ジベンゾチエニル基、カルボニリル基などの炭素原子数2〜30の複素環基;
ジメチルアミノ基、ジエチルアミノ基、エチルメチルアミノ基、メチルプロピルアミノ基、ジ−t−ブチルアミノ基、ジフェニルアミノ基などの、炭素原子数1〜18の直鎖状もしくは分岐状のアルキル基、または炭素原子数6〜18の芳香族炭化水素基などから選択される置換基を有する炭素原子数0〜18の一置換もしくは二置換アミノ基;
メチルチオ基、エタンチオ基、プロピルチオ基、ジ−t−ブチルチオ基、ヘキサ−5−エン−3−チオ基、フェニルチオ基、ビフェニルチオ基などの炭素原子数1〜18のチオ基;
などをあげることができる。これらの「置換基」は、1つのみ含まれてもよく、複数含まれてもよく、複数含まれる場合は互いに同一でも異なっていてもよい。また、これら「置換基」はさらに前記例示した置換基を有していてもよい。
メチルチオ基、エタンチオ基、プロピルチオ基、ジ−t−ブチルチオ基、ヘキサ−5−エン−3−チオ基、フェニルチオ基、ビフェニルチオ基などをあげることができる。
また、nが1である場合、R10とR11またはR11とR14、R12とR13またはR13とR15は、単結合、硫黄原子を介した結合、もしくは窒素原子を介した結合によって互いに結合して環を形成していてもよい。
ピリジル基、ピリミジリニル基、トリアジニル基、チエニル基、フリル基(フラニル基)、ピロリル基、イミダゾリル基、ピラゾリル基、トリアゾリル基、キノリル基、イソキノリル基、ナフチルジニル基、アクリジニル基、フェナントロリニル基、ベンゾフラニル基、ベンゾチエニル基、オキサゾリル基、インドリル基、カルバゾリル基、ベンゾオキサゾリル基、チアゾリル基、ベンゾチアゾリル基、キノキサリニル基、ベンゾイミダゾリル基、ピラゾリル基、ジベンゾフラニル基、ジベンゾチエニル基、カルボニリル基などをあげることができる。
メトキシ基、エトキシ基、プロポキシ基、ブトキシ基、ペンチルオキシ基、ヘキシルオキシ基、ヘプチルオキシ基、オクチルオキシ基、ノニルオキシ基、デシルオキシ基、イソプロポキシ基、イソブトキシ基、s−ブトキシ基、t−ブトキシ基、イソオクチルオキシ基、などをあげることができる。
また、以下の例示化合物は、存在し得る立体異性体のうちの一例を示したものであり、その他すべての立体異性体を包含するものとする。また、それぞれ2種以上の立体異性体の混合物であってもよい。
窒素置換した反応容器に、2−(4−ブロモフェニル)−1,1−ジフェニルエチレン8.11g、1,2,3,3a,4,8b−ヘキサヒドロシクロペンタ[b]インドール4.24g、キシレン56mLを入れ、トリフェニルホスフィン0.127g、カリウムt−ブトキシド5.43g、酢酸パラジウム0.27gを加えて減圧脱気を行った。125℃で撹拌しながら10時間反応を行った。50℃まで冷却し活性白土9.4gを加え、1時間撹拌後吸引ろ過を行い、水100mLを加えて撹拌し、有機層を抽出した。有機層を水洗した後、分離し、硫酸ナトリウムで乾燥し、減圧濃縮し、オイル状の粗生成物を得た。粗生成物をカラムクロマトグラフィー(担体:シリカゲル、溶離液:ヘキサン/トルエン=10/1(体積比))精製し、黄色固体(9.98g)を得た。
得られた黄色固体2gを常法に従い臭素化し、下記式(10)で表されるブロム体2.35gを得た。
合成実施例1における原料4−ブロモベンズアルデヒドの代わりに、6−ブロモベンゾ[b]チオフェン−2−カルバルデヒドを用いた以外は合成実施例1と同様に合成し、目的の増感色素を紫色固体として得た(0.29g、収率57%)。
合成実施例1における原料4−ブロモベンズアルデヒドの代わりに、7−ブロモ−2,1,3−ベンゾチアジアゾール−4−カルボキシアルデヒドを用いた以外は合成実施例1と同様に合成し、目的の増感色素を黒色固体として得た(0.13g、収率69%)。
合成実施例1における原料4−ブロモベンズアルデヒドの代わりに、6−ブロモ−2−ナフトアルデヒドを用いた以外は合成実施例1と同様に合成し、目的の増感色素を黒紫色固体として得た(0.16g、収率84%)。
窒素置換した反応容器に、前記式(11)で表されるボロン酸エステル化合物0.85g、4、7−ジブロモ−2−オクチル−2H−ベンゾトリアゾール0.61g、トルエン24mL、1−ブタノール39mL、炭酸ナトリウム1.7g、水12mLを入れて撹拌後、反応容器内の減圧、脱気、窒素置換を5回繰り返した。次に、テトラキス(トリフェニルホスフィン)パラジウム0.196gを加え、反応容器内の減圧、脱気、窒素置換を5回繰り返した。その後、80℃で2時間撹拌した。反応液を25℃まで放冷後、水156mLを加えて撹拌し、有機層を抽出した。有機層を硫酸マグネシウムで乾燥し、減圧濃縮し、粗生成物を得た。粗生成物をカラムクロマトグラフィー(担体:シリカゲル、溶離液:トルエン/ヘキサン=2/1(体積比))精製し、乾燥し、下記式(14)で表されるブロモ化合物の黄色固体(0.54g)を得た。
合成実施例1における原料2−(4−ブロモフェニル)−1,1−ジフェニルエチレンの代わりに、4−ブロモビフェニルを用いた以外は合成実施例1と同様に合成し、目的の増感色素を紫色固体として得た(0.35g、収率81%)。
フッ素ドープの酸化スズ薄膜をコートしたガラス基板上に、酸化チタンペースト(日揮触媒化成株式会社製、PST−18NR)をスキージ法により塗布した。110℃で1時間乾燥後、450℃で30分間焼成し、膜厚6μmの酸化チタン薄膜を得た。次に、合成実施例1で得られた増感色素(A−1)をアセトニトリル/t−ブチルアルコール=1/1(体積比)混合液に溶解して濃度100μMの溶液50mLを調製し、この溶液中に、酸化チタンを塗布焼結したガラス基板を、25±2℃で15時間浸漬して色素を吸着させ、光電極とした。
光電変換用増感色素として、合成実施例1で得られた増感色素(A−1)の代わりにそれぞれ表1に示す増感色素を用いた以外は実施例1と同様に作製した光電変換素子についての、電流−電圧特性、初期光電変換効率を表1にまとめて示す。
光電変換用増感色素として、合成実施例1で得られた増感色素(A−1)の代わりに本発明に属さない以下の(B−1)〜(B−3)に示す増感色素を用いた以外は実施例1と同様に作製した光電変換素子についての、電流−電圧特性、初期光電変換効率を表1に示す。
2 色素担持半導体層
3 電解質層
4 対極
5 導電性支持体
Claims (8)
- 前記一般式(1)において、Xが下記一般式(2)で表される2価基の芳香族炭化水素基または2価基の複素環基である、請求項1に記載の増感色素。
[式中、R10〜R15は同一でも異なっていてもよく、
水素原子、
置換基を有していてもよい炭素原子数1〜18の直鎖状もしくは分岐状のアルキル基、
置換基を有していてもよい炭素原子数2〜18の直鎖状もしくは分岐状のアルケニル基、置換基を有していてもよい炭素原子数0〜18のアミノ基、
または置換基を有していてもよい炭素原子数0〜18のチオ基を表し、
nは0または1を表す。
nが0である場合、R10とR11、R12とR13は互いに結合して環を形成していてもよい。
また、nが1である場合、R10とR11またはR11とR14、R12とR13またはR13とR15は互いに結合して環を形成してもよい。] - 前記一般式(1)において、Zが下記一般式(3)で表される1価基である、請求項1に記載の増感色素。
水素原子、
置換基を有していてもよい炭素原子数1〜18の直鎖状もしくは分岐状のアルキル基、
置換基を有していてもよい炭素原子数1〜18の直鎖状もしくは分岐状のアルコキシ基、
または置換基を有していてもよい炭素原子数2〜18の直鎖状もしくは分岐状のアルケニル基を表す。
pは0〜4を表し、
R20とR21は、同一でも異なっていてもよく、それぞれ互いに結合し環を形成していてもよい。
R22は、水素原子または炭素原子数1〜18の直鎖状もしくは分岐状のアルキル基を表す。
R23およびR24は、水素原子または酸性基を表し、少なくともいずれか1個は酸性基であるものとする。] - 前記一般式(1)において、R1は置換基を有していてもよい炭素原子数1〜6の直鎖状もしくは分岐状のアルキル基、または炭素原子数6〜26の芳香族炭化水素基であり、
R2およびR3は水素原子、
または置換基を有していてもよい炭素原子数1〜6の直鎖状のアルキル基であり、
また、mが3または4である請求項1〜請求項4のいずれか一項に記載の増感色素。 - 請求項1〜請求項5のいずれか一項に記載の増感色素を含む光電変換用増感色素組成物。
- 請求項6に記載の光電変換用増感色素組成物を用いた光電変換素子。
- 請求項7に記載の光電変換素子を用いた色素増感太陽電池。
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