JP4880649B2 - Dye-sensitized solar cell and method for producing the same - Google Patents
Dye-sensitized solar cell and method for producing the same Download PDFInfo
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- 238000004519 manufacturing process Methods 0.000 title claims description 4
- 239000000463 material Substances 0.000 claims description 74
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 32
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 claims description 32
- 229920000642 polymer Polymers 0.000 claims description 27
- 239000006096 absorbing agent Substances 0.000 claims description 22
- 239000008151 electrolyte solution Substances 0.000 claims description 19
- 239000004065 semiconductor Substances 0.000 claims description 17
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 16
- 238000009833 condensation Methods 0.000 claims description 16
- 230000005494 condensation Effects 0.000 claims description 16
- 239000003792 electrolyte Substances 0.000 claims description 16
- 239000000049 pigment Substances 0.000 claims description 16
- 229910052710 silicon Inorganic materials 0.000 claims description 14
- 239000010703 silicon Substances 0.000 claims description 14
- 229910021536 Zeolite Inorganic materials 0.000 claims description 13
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 claims description 13
- 239000000758 substrate Substances 0.000 claims description 13
- 239000010457 zeolite Substances 0.000 claims description 13
- 150000001875 compounds Chemical class 0.000 claims description 12
- 238000000265 homogenisation Methods 0.000 claims description 10
- 238000001035 drying Methods 0.000 claims description 7
- 239000002245 particle Substances 0.000 claims description 7
- 239000000853 adhesive Substances 0.000 claims description 5
- 230000001070 adhesive effect Effects 0.000 claims description 5
- 238000003475 lamination Methods 0.000 claims description 5
- 230000002745 absorbent Effects 0.000 claims description 4
- 239000002250 absorbent Substances 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 4
- 239000010409 thin film Substances 0.000 claims description 4
- 239000004033 plastic Substances 0.000 claims description 3
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 2
- 239000004917 carbon fiber Substances 0.000 claims description 2
- 239000000835 fiber Substances 0.000 claims description 2
- 239000011521 glass Substances 0.000 claims description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 2
- 239000012209 synthetic fiber Substances 0.000 claims description 2
- 229920002994 synthetic fiber Polymers 0.000 claims description 2
- 229920001296 polysiloxane Polymers 0.000 claims 2
- 238000002425 crystallisation Methods 0.000 claims 1
- 230000008025 crystallization Effects 0.000 claims 1
- 239000000975 dye Substances 0.000 description 34
- 239000007788 liquid Substances 0.000 description 9
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 7
- 239000010408 film Substances 0.000 description 6
- 230000001965 increasing effect Effects 0.000 description 6
- 238000000862 absorption spectrum Methods 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 5
- 230000006870 function Effects 0.000 description 5
- 239000003566 sealing material Substances 0.000 description 3
- 229910052740 iodine Inorganic materials 0.000 description 2
- 239000011630 iodine Substances 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical compound [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 description 1
- 206010070834 Sensitisation Diseases 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000003667 anti-reflective effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 239000011245 gel electrolyte Substances 0.000 description 1
- 238000001879 gelation Methods 0.000 description 1
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 description 1
- -1 iodine ions Chemical class 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 150000002825 nitriles Chemical class 0.000 description 1
- 230000001699 photocatalysis Effects 0.000 description 1
- 230000002165 photosensitisation Effects 0.000 description 1
- 208000017983 photosensitivity disease Diseases 0.000 description 1
- 231100000434 photosensitization Toxicity 0.000 description 1
- 239000003504 photosensitizing agent Substances 0.000 description 1
- 239000005518 polymer electrolyte Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 230000008313 sensitization Effects 0.000 description 1
- 230000001235 sensitizing effect Effects 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
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Classifications
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- 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
- H01G9/2027—Light-sensitive devices comprising an oxide semiconductor electrode
- H01G9/2036—Light-sensitive devices comprising an oxide semiconductor electrode comprising mixed oxides, e.g. ZnO covered TiO2 particles
-
- 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
- Y02E10/542—Dye sensitized solar 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
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Photovoltaic Devices (AREA)
- Hybrid Cells (AREA)
Description
本発明は、色素を吸着したゼオライト等を多孔質酸化チタンで被覆し高分子吸収体でゲル化したもの等を、粘着性（粘弾性）を損なわない範囲で乾燥させた後に、粒子状にしたり細分化し又はそのままの状態でさらに一体的に薄膜化、均一化を含む加圧凝縮（以下「加圧凝縮」）の加工をして均一で高密度かつ弾力性を持つゴム状ゲル材、又は色素又は電解液を高分子吸収体でゲル化したものを、粘着性（粘弾性）を損なわない範囲で乾燥させた後に、粒子状にしたり細分化し又はそのままの状態でさらに一体的に加圧凝縮の加工をして均一で高密度かつ弾力性を持つゴム状ゲル材に形成して用いた色素増感太陽電池およびその製造方法に関する。The invention, and the like that gelled coated with absorbent polymer in the porous titanium oxide adsorbed zeolite pigment, after drying in a range that does not impair the adhesive (viscoelasticity), or in particulate A rubber-like gel material or pigment having a uniform, high-density and elasticity by processing pressure condensation (hereinafter referred to as “pressure condensation” ), including thinning and homogenization, in a subdivided or intact state Alternatively, after the electrolyte solution gelled with the polymer absorber is dried within a range that does not impair the adhesiveness (viscoelasticity), it is made into particles, subdivided, or further compressed and condensed as it is. The present invention relates to a dye-sensitized solar cell that has been processed and formed into a uniform, high-density and elastic rubber-like gel material , and a method for producing the same.
従来の色素増感太陽電池は、一般的には半導体層電極、対電極、及びそれらの電極間に充填された電解質層とから構成される。この際に、半導体層表面には可視光領域に吸収スペクトルを有する光増感色素が吸着されている。 Conventional dye-sensitized solar cells are generally composed of a semiconductor layer electrode, a counter electrode, and an electrolyte layer filled between the electrodes. At this time, a photosensitizing dye having an absorption spectrum in the visible light region is adsorbed on the surface of the semiconductor layer.
この半導体層電極に光を照射すると、電極側にある色素から電子が発生し、この電子が多孔質酸化チタン膜に移動してインジウムすず酸化物（ＩＴＯ）等の導電層を通り、回路を経て対電極に流れる。 When this semiconductor layer electrode is irradiated with light, electrons are generated from the dye on the electrode side, and the electrons move to the porous titanium oxide film and pass through a conductive layer such as indium tin oxide (ITO) through a circuit. Flows to the counter electrode.
そして対電極に流れた電子は、電解質中のイオンにより運ばれて半導体層電極に戻る。この際の電解液には通常ニトリル系の溶媒を用い、これに溶質としてヨウ素とヨウ素イオンのレドックス系を溶解する。このような繰り返しにより電気エネルギーが取り出せる。 The electrons flowing to the counter electrode are carried by the ions in the electrolyte and return to the semiconductor layer electrode. In this case, a nitrile solvent is usually used as the electrolytic solution, and a redox system of iodine and iodine ions is dissolved therein as a solute. Electric energy can be taken out by repeating such operations.
しかし、変換効率が最大１０％程度と低いため特許文献１及び２のように、電解液の液漏れや変質に対して高分子化合物等を用いたゲル状電解質やポリマー電解質といった類のもので解決を試みているが、大きな成果は見受けられない。 However, since the conversion efficiency is as low as about 10%, as in
一方、特許文献３では、ゼオライト等の担体の表面に酸化チタンを被覆するといった光触媒技術が見受けられる。 On the other hand, in Patent Document 3, a photocatalytic technique in which the surface of a support such as zeolite is coated with titanium oxide can be seen.
従来の色素増感太陽電池は、紫外線域波長にのみ対応する酸化チタン及び色素の光増感に限界があるために変換効率が最大１０％程度と低く、また色素や電解液の液漏れ等による長寿命化（長期安定性の確保）が困難となっている。 Conventional dye-sensitized solar cells have a limitation in the photosensitization of titanium oxide and dyes corresponding only to wavelengths in the ultraviolet region, so that the conversion efficiency is as low as about 10% at the maximum, and due to leakage of dyes and electrolytes, etc. It has become difficult to extend the service life (ensure long-term stability).
そのため、高増感色素を求めたり液漏れ等を改善するために、酸化チタンの多孔化、色素の改質、固体化及びゲル化等の研究がなされているが、大きな成果は見受けられない。 For this reason, in order to obtain highly sensitizing dyes and improve liquid leakage, etc., researches on porous titanium oxide, modification of dyes, solidification, and gelation have been conducted, but no great results have been found.
本発明は、これら課題を改善し解決することで、より高効率で長寿命化を図った色素増感太陽電池およびその製造方法を提供することを目的とするものである。 An object of the present invention is to provide a dye-sensitized solar cell that is improved in efficiency and has a long lifetime by improving and solving these problems, and a method for manufacturing the same.
本発明は、上記目的達成のために、まず色素をゼオライト（活性炭を含み、以下略。）に吸着させた後に多孔質酸化チタンを被覆する。この際に例えば色素を吸着したゼオライトを加圧し凝縮して良く、単位当たりの色素量が増大し発生電子も多く見込める。The present invention, in order achieve the above object, firstly dye (including activated carbon, following substantially.) Zeolite coating the porous titanium oxide After adsorption. At this time, for example, the zeolite adsorbed with the dye may be pressurized and condensed, the amount of the dye per unit is increased, and many generated electrons can be expected.
又はゼオライトを用いずに色素を直接多孔質酸化チタンに吸着させる。この際もそれを一定程度加圧し凝縮して良い。 Alternatively, the dye is directly adsorbed on the porous titanium oxide without using zeolite. At this time, it may be pressurized to a certain extent and condensed.
又はそれらにシリコンや化合物半導体を、微粒子状にして含める（シリコン等を混合しても良い。）ことで、多孔質酸化チタン及び色素の機能強化及び補強がなされる。 Alternatively, silicon and a compound semiconductor are included in the form of fine particles (silicon or the like may be mixed), thereby enhancing and reinforcing the functions of porous titanium oxide and pigment.
次に、それら（単一又は複数の色素、多孔質酸化チタン、電解液を含む。以下同。）を、それぞれ高分子吸収体でゲル状にして乾燥凝縮させるが、その際に粘着性（粘弾性）を損なわない範囲で最大限の乾燥と凝縮を行うことが必要である。 Next, each of them (including a single or plural dyes, porous titanium oxide, and electrolyte solution; the same applies hereinafter) is gelled with a polymer absorber and dried and condensed. It is necessary to perform maximum drying and condensation within a range that does not impair elasticity.
その粘着性（粘弾性）は、液体的な導電作用によって色素で発生した電子を半導体層に移動させて電極に伝え、電解液のイオンを保持して色素への電子供給機能を担う。また、それは面的な広がりを持つために透明度のある薄膜状の電極が可能となり、従来の電極の代替も可能となる。 The adhesiveness (viscoelasticity) moves electrons generated in the dye by a liquid conductive action to the semiconductor layer and transmits the electrons to the electrode, and retains ions of the electrolytic solution and has a function of supplying electrons to the dye. In addition, since it has a wide area, it is possible to form a transparent thin film-like electrode and to replace the conventional electrode.
そして、それらゲル状のものを、粒子状にしたり小さく裁断する等の細分化を行い又はそのままの状態でさらに一体的に加圧凝縮の加工をして均一で高密度かつ弾力性を持つゴム状ゲル材を形成させる。 Then, these gel-like materials are subdivided into particles or cut into small pieces, etc., or are processed in a state of pressure condensation in the state as they are, and are uniformly, high-density and elastic rubber-like A gel material is formed.
その場合、色素では、可視光域の吸収スペクトルが異なる複数の色素を単一のゴム状ゲル材に形成したり、複数の色素のゴム状ゲル材を組み合わせて（積層を含む。）用いる等で、さらに発生する電子量の増大が期待できる。 In that case, a plurality of dyes having different absorption spectra in the visible light region are formed in a single rubber-like gel material, or a plurality of dye-like rubber-like gel materials are used in combination (including lamination). Further, an increase in the amount of generated electrons can be expected.
また、電解液では、ゴム状ゲル材を形成するだけで十分に液漏れ等の解決は図れるが、粘着性（粘弾性）の働きによって電解液を用いずに直接電極から色素へ電子を供給して液漏れ等を解決することも可能である。 In addition, the electrolytic solution can sufficiently solve the liquid leakage etc. by forming a rubbery gel material, but by the action of adhesiveness (viscoelasticity), electrons are directly supplied from the electrode to the dye without using the electrolytic solution. It is also possible to solve the liquid leakage.
その後に、上記のゴム状ゲル材を積み重ね、それをさらに一体的にするために再び加圧凝縮等の加工、例えば圧延、ロール及びプレス加工等で凝縮化、薄膜化、均一化及び製品化等を行い、プラスチックの基板（ガラス材、天然繊維、合成繊維及び炭素繊維を含む。以下同。）に封止材、電極、反射膜及び反射防止膜等との一部又は全部の組み合わせで本発明の色素増感太陽電池が形成される。 After that, the above rubber-like gel material is stacked, and in order to make it more integrated, condensation, thinning, homogenization, productization, etc. are performed again by processing such as pressure condensation, for example, rolling, roll and press processing, etc. And a plastic substrate (including glass material, natural fiber, synthetic fiber, and carbon fiber; the same applies hereinafter) with a part or all of a combination of a sealing material, an electrode, a reflection film, an antireflection film, and the like. The dye-sensitized solar cell is formed.
また、上記のゴム状ゲル材を複数組み合わせて（積層を含む。）、上記同様にすることで、より機能向上を図った本発明の色素増感太陽電池が形成される。 Moreover, the dye-sensitized solar cell of this invention which improved the function further is formed by combining two or more said rubber-like gel materials (including lamination | stacking) and carrying out similarly to the above.
本発明は、変換効率の低さ、色素や電解液の液漏れ等を解決して高効率及び長寿命化を図るもので、まず変換効率の低さに対し、色素の高密度化及び吸収スペクトル域の拡大等によって単位当たりの色素量が増大して発生電子も増大する等により高効率となる。 The present invention solves the low conversion efficiency, the leakage of dyes and electrolytes, etc., and achieves high efficiency and long life. First, the density of the dye and the absorption spectrum are reduced with respect to the low conversion efficiency. Higher efficiency is achieved, for example, by increasing the amount of dye per unit due to expansion of the region and the like, and increasing the number of generated electrons.
また、シリコンや化合物半導体を用いることで、さらに発生する電子量を増大させるとともに半導体層の充実等になり電極に伝達させる電子量も増大して高効率となる。 Further, by using silicon or a compound semiconductor, the amount of generated electrons is further increased, the semiconductor layer is enriched, and the amount of electrons transmitted to the electrode is increased, resulting in high efficiency.
次に、色素及び電解液の液漏れ等に対しては、多孔質酸化チタン、色素及び電解液を高分子吸収体を用いてゴム状ゲル材に形成したことで解決される。 Next, the leakage of the dye and the electrolytic solution is solved by forming the porous titanium oxide, the dye and the electrolytic solution on the rubber-like gel material using the polymer absorber.
即ち、例えば電解液が担っていた色素への電子供給機能が、ゴム状ゲル材の粘着性（粘弾性）が持つ液体的な導電作用によって担保されるので液漏れ等が解決される。 In other words, for example, the function of supplying electrons to the dye that the electrolyte has carried is secured by the liquid conductive action of the adhesiveness (viscoelasticity) of the rubber-like gel material, so that liquid leakage and the like are solved.
また、粘着性（粘弾性）の液体的な導電作用によって電解液を不用とすることも可能となるので、その場合には液漏れ等の問題は生じない。 In addition, since the electrolytic solution can be made unnecessary by the adhesive (viscoelastic) liquid conductive action, problems such as liquid leakage do not occur in that case.
以上により、多孔質酸化チタン、色素及び電解液等をゴム状ゲル材とすることで変換効率が向上し、かつ液漏れ等が解消、解決されて弾力性が保持されることで、耐久性が増し長寿命化（長期安定性の確保）が図られる。 As described above, the conversion efficiency is improved by making the porous titanium oxide, the pigment, the electrolytic solution, and the like into a rubbery gel material, and the liquid leakage is solved and solved, and the elasticity is maintained, so that the durability is maintained. Increased service life (ensures long-term stability).
本発明について、図１から図１２の実施例に基づいて説明する。ただし、本発明はこれらに限るものではなく、また作図は主要な構成物のみとする。 The present invention will be described based on the embodiment shown in FIGS. However, the present invention is not limited to these, and only the main components are drawn.
本発明の基本的な形態は、まず色素２をゼオライト３に吸着させた後に多孔質酸化チタン４で被覆し、又は色素２を直接多孔質酸化チタン４に吸着させ、又はそれらにシリコン（化合物半導体含む。以下同。）４−１を含ませる（シリコン４−１の単独でも良い。）。Basic form of the present invention, first the dye 2 was coated with porous titanium oxide 4 to be adsorbed onto the zeolite 3, or dye 2 was adsorbed directly on the porous titanium oxide 4, or silicon them (compound semiconductor (The same applies hereinafter.) 4-1 is included (silicon 4-1 alone may be used).
次に、それらを高分子吸収体５によってゲル化し、その後粘着性（粘弾性）を損なわない範囲で乾燥させて凝縮させる。その場合、自然乾燥でも人工乾燥でも良い。 Next, they are gelled by the polymer absorber 5, and then dried and condensed within a range that does not impair the stickiness (viscoelasticity). In that case, natural drying or artificial drying may be used.
そして、ゲル化し乾燥凝縮したそれらを、粒子状に加工したり裁断して細分化したり又はそのままの状態でさらに一体的に加圧凝縮の加工をして均一で高密度かつ弾力性を持ったゴム状ゲル材６（説明上、ゼオライト３やシリコン４−１の有無を問わない。以下同。）を形成する。 Then, the rubber that has been gelled and dried and condensed is processed into particles, cut into fine pieces, or further subjected to pressure condensation processing in the same state, and it is a uniform, high-density and elastic rubber. A gel material 6 (for the sake of explanation, whether or not zeolite 3 or silicon 4-1 is present is used) is formed.
一方、上記方法により色素２及び電解液７をそれぞれ色素ゴム状ゲル材８、電解液ゴム状ゲル材９に形成する。 On the other hand, the pigment | dye 2 and the electrolyte solution 7 are formed in the pigment | dye rubber-
それらを、例えばプラスチックの基板（以下「基板」）１０で挟み込み、電極１１、封止材１２、反射膜等１３（等は反射防止膜）と一体的に組み合わせること（積層を含む。）で本発明の色素増感太陽電池が形成されるものである。 They are sandwiched between, for example, a plastic substrate (hereinafter referred to as “substrate”) 10, and are integrally combined with the electrode 11, the sealing material 12, the reflective film 13 (and the like are anti-reflective films), etc. (including lamination). The dye-sensitized solar cell of the invention is formed.
図１は基本構成を上から基板１０、電極１１、ゴム状ゲル材６、電解液ゴム状ゲル材９、電極１１、基板１０としたもので、図２は図１の基本構成において、ゴム状ゲル材６と電解液ゴム状ゲル材９の間に色素ゴム状ゲル材８を配置したものである。 FIG. 1 shows a basic configuration from the top as a
そして、太陽光でゴム状ゲル材６の色素２から電子が発生し、また色素ゴム状ゲル材８からも同様に電子が発生し、それら電子が多孔質酸化チタン４を通じて電極１１に流れる。 Then, electrons are generated from the pigment 2 of the rubber-
その後、色素２に対し電解液ゴム状ゲル材９から新たな電子が供給されるが、それら発生電子の移動等に係る機能は、全てそれぞれのゴム状ゲル材（６、８、９）の粘着性（粘弾性）が担うこととなる。 Thereafter, new electrons are supplied from the electrolyte rubber-like gel material 9 to the dye 2, and all the functions relating to the movement of the generated electrons are the adhesion of the respective rubber-like gel materials (6, 8, 9). Nature (viscoelasticity).
図３は、図２の基本構成において色素ゴム状ゲル材８のほかに吸収スペクトルの異なる色素ゴム状ゲル材８−１を配置して、より色素増感を図ったものである。 FIG. 3 shows a dye sensitization by arranging a dye rubber-like gel material 8-1 having a different absorption spectrum in addition to the dye rubber-
図４は、図２の基本構成において電解液ゴム状ゲル材９を除いたものである。 FIG. 4 is obtained by removing the electrolyte rubber-like gel material 9 from the basic configuration of FIG.
図５は、基本構成を上から基板１０、ゴム状ゲル材６、電極１１、ゴム状ゲル材６、電解液ゴム状ゲル材９、電極１１、基板１０としたもので、図６は図５の基本構成において、色素ゴム状ゲル材８を加えたものである。 FIG. 5 shows the basic structure from the top as
図５及び図６は、上部の電極１１をその上下に配置したゴム状ゲル材６で挟み込むようにしたもので、上下に配置したゴム状ゲル材６からより多くの発生電子が伝えられる仕組みである。なお、必要に応じてセパレータ等による電極１１の保護や制御を行う。5 and 6 show a structure in which the upper electrode 11 is sandwiched between
図７は、図６の基本構成において電解液ゴム状ゲル材９を除いたもので、図８は基本構成を上から基板１０、電極１１、ゴム状ゲル材６、電解液ゴム状ゲル材９、電極１１、電解液ゴム状ゲル材９、ゴム状ゲル材６、電極１１、基板１０としたものである。 FIG. 7 is obtained by removing the electrolyte rubber-like gel material 9 from the basic structure of FIG. 6, and FIG. 8 shows the basic structure from the top of the
図９は、図８の基本構成において電解液ゴム状ゲル材９の替わりに色素ゴム状ゲル材８と８−１を加えたものである。 FIG. 9 is obtained by adding dye rubber-
図１０は、基本構成を上から基板１０、ゴム状ゲル材６、電極１１、ゴム状ゲル材６、電解液ゴム状ゲル材９、電極１１、電解液ゴム状ゲル材９、ゴム状ゲル材６、電極１１、ゴム状ゲル材６、基板１０としたものである。 FIG. 10 shows, from the top, the
図１１は、図１０の基本構成において電解液ゴム状ゲル材９の替わりに色素ゴム状ゲル材８と８−１を加えたものである。 FIG. 11 is obtained by adding pigment rubber-
図１２は、色素ゴム状ゲル材８及び８−１を透明度の高い薄膜状にして電極１１の代替を担わせたものである。FIG. 12 shows an alternative to the electrode 11 in which the pigment
１ 本発明の実施例（１）
２ 色素
３ ゼオライト
４ 多孔質酸化チタン
４−１ シリコン（化合物半導体含む。）
５ 高分子吸収体
６ ゴム状ゲル材
７ 電解液
８ 色素ゴム状ゲル材
８−１ 色素ゴム状ゲル材（色素ゴム状ゲル材８と異なる吸収スペクトルを持つ。）
９ 電解液ゴム状ゲル材
１０ 基板
１１ 電極
１２ 封止材
１３ 反射膜等
１４ 本発明の実施例（２）
１５ 本発明の実施例（３）
１６ 本発明の実施例（４）
１７ 本発明の実施例（５）
１８ 本発明の実施例（６）
１９ 本発明の実施例（７）
２０ 本発明の実施例（８）
２１ 本発明の実施例（９）
２２ 本発明の実施例（１０）
２３ 本発明の実施例（１１）
２４ 本発明の実施例（１２）1 Embodiment (1) of the present invention
2 Dye 3 Zeolite 4 Porous titanium oxide 4-1 Silicon (compound semiconductor included)
5
9 Electrolytic solution
15 Embodiment (3) of the present invention
16 Embodiment (4) of the present invention
17 Embodiment (5) of the present invention
18 Embodiment (6) of the present invention
19 Embodiment (7) of the present invention
20 Embodiment (8) of the present invention
21 Embodiment (9) of the present invention
22 Embodiment (10) of the present invention
23 Embodiment (11) of the present invention
24 Embodiment (12) of the present invention
Claims (13)
又は色素又は電解液を高分子吸収体でゲル化したものを、粘着性（粘弾性）を損なわない範囲で乾燥させた後に、粒子状にしたり細分化し又はそのままの状態でさらに一体的に薄膜化、均一化を含む加圧凝縮の加工をして均一で高密度かつ弾力性を持つゴム状ゲル材、
に形成して用いたことを特徴とする色素増感太陽電池。Zeolite or activated carbon with dye adsorbed coated with porous titanium oxide and gelled with polymer absorber, or porous titanium oxide adsorbed with dye gelled with polymer absorber, or dye adsorbed Silicone or activated carbon coated with porous titanium oxide and gelled with a polymer absorber, or porous titanium oxide adsorbed with a dye gelled with a polymer absorber , including silicon or a compound semiconductor, or silicon or a compound semiconductor or a porous titanium oxide that gelled absorbent polymer, after drying in a range that does not impair the adhesive (viscoelasticity), and in the state of subdivided or particulate or intact integrally Rubbery gel material with uniform, high density and elasticity by processing of pressure condensation including thinning and homogenization ,
Alternatively, after a pigment or electrolyte gelled with a polymer absorber is dried to the extent that it does not impair adhesiveness (viscoelasticity), it is made into particles, subdivided, or thinned as it is in one piece , Rubber gel material with uniform, high density and elasticity by processing of pressure condensation including homogenization,
A dye-sensitized solar cell, which is formed and used.
又は色素又は電解液を高分子吸収体でゲル化したものを、粘着性（粘弾性）を損なわない範囲で乾燥させた後に、粒子状にしたり細分化し又はそのままの状態でさらに一体的に薄膜化、均一化を含む加圧凝縮の加工をして均一で高密度かつ弾力性を持つゴム状ゲル材、
に形成して用いたことを特徴とする請求項１記載の色素増感太陽電池の製造方法。Zeolite or activated carbon with dye adsorbed coated with porous titanium oxide and gelled with polymer absorber, or porous titanium oxide adsorbed with dye gelled with polymer absorber, or dye adsorbed Silicone or activated carbon coated with porous titanium oxide and gelled with a polymer absorber, or porous titanium oxide adsorbed with a dye gelled with a polymer absorber , including silicon or a compound semiconductor, or silicon or a compound semiconductor or a porous titanium oxide that gelled absorbent polymer, after drying in a range that does not impair the adhesive (viscoelasticity), and in the state of subdivided or particulate or intact integrally Rubbery gel material with uniform, high density and elasticity by processing of pressure condensation including thinning and homogenization ,
Alternatively, after a pigment or electrolyte gelled with a polymer absorber is dried to the extent that it does not impair adhesiveness (viscoelasticity), it is made into particles, subdivided, or thinned as it is in one piece , Rubber gel material with uniform, high density and elasticity by processing of pressure condensation including homogenization,
Method for manufacturing a dye-sensitized solar cell according to claim 1, wherein the to be used formed.
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