JP2009021168A - Dye-sensitized solar cell - Google Patents

Dye-sensitized solar cell

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JP2009021168A
JP2009021168A JP2007184318A JP2007184318A JP2009021168A JP 2009021168 A JP2009021168 A JP 2009021168A JP 2007184318 A JP2007184318 A JP 2007184318A JP 2007184318 A JP2007184318 A JP 2007184318A JP 2009021168 A JP2009021168 A JP 2009021168A
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electrode film
dye
sensitized solar
solar cell
photoelectric conversion
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Rei Fushiki
怜 伏木
Naoto Hagiwara
直人 萩原
Yosuke Nakagawa
陽介 中川
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Taiyo Yuden Co Ltd
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Taiyo Yuden Co Ltd
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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

Abstract

<P>PROBLEM TO BE SOLVED: To provide a dye-sensitized solar cell which can improve an energy conversion efficiency by effectively utilizing for an expected photoelectric conversion all of white light irradiated on an effective euphotic region provided on a transparent receiving board. <P>SOLUTION: On an outside of a photoelectric conversion film 13, there is provided a reflection portion 15b which guides, by reflection action to the photoelectric conversion film 13, the white light IB which is irradiated on an outer edge portion of the effective euphotic region ER provided on the transparent light receiving board 11 and moreover is not guided directly to the photoelectric conversion film 13. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

本発明は、色素増感型太陽電池に関する。   The present invention relates to a dye-sensitized solar cell.

図１は従前の色素増感型太陽電池の縦断面図である。同図に示した色素増感型太陽電池１００は、透明受光板１０１と、透明受光板１０１に付設された透明電極膜１０２と、透明電極１０２に付設された光電変換膜１０３と、対向板１０４と、対向板１０４に付設された対向電極膜１０５と、透明電極膜１０２と対向電極膜１０５との間に設けられたシール材１０６と、シール材１０６で囲まれた空間に充填された電荷輸送材１０７とを備えている。   FIG. 1 is a longitudinal sectional view of a conventional dye-sensitized solar cell. The dye-sensitized solar cell 100 shown in the figure includes a transparent light receiving plate 101, a transparent electrode film 102 attached to the transparent light receiving plate 101, a photoelectric conversion film 103 attached to the transparent electrode 102, and a counter plate 104. And a counter electrode film 105 attached to the counter plate 104, a seal material 106 provided between the transparent electrode film 102 and the counter electrode film 105, and charge transport filled in a space surrounded by the seal material 106 The material 107 is provided.

透明受光板１０１は透明プラスチック等から成り、透明電極膜１０２は錫ドープ酸化インジウム（ＩＴＯ）等から成り、光電変換膜１０３は酸化チタン（ＴｉＯ2）等の多孔質半導体及びその表面に吸着されたルテニウム金属錯体等の色素を含み、対向板１０４は透明プラスチック等から成り、対向電極膜１０５は白金等から成り、シール材１０６はエポキシ樹脂等から成り、電荷輸送材１０７はヨウ素レドックスカップル（Ｉ-／Ｉ3 -）を含むアセトニトリル系溶媒等から成る。 The transparent light receiving plate 101 is made of transparent plastic or the like, the transparent electrode film 102 is made of tin-doped indium oxide (ITO) or the like, and the photoelectric conversion film 103 is adsorbed on a porous semiconductor such as titanium oxide (TiO 2 ) or its surface. The counter plate 104 is made of transparent plastic or the like, the counter electrode film 105 is made of platinum or the like, the seal material 106 is made of epoxy resin or the like, and the charge transport material 107 is iodine redox couple (I − / I 3 − ) and other acetonitrile solvents.

前記の色素増感型太陽電池にあっては以下のようなサイクルで所期の光電変換が行われる。即ち、透明受光板１０１に太陽光等の白色光が照射されると、該白色光は透明受光板１０１及び透明電極膜１０２を通じて光電変換膜１０３の色素に到達し、光エネルギーによる励起によって色素から電子が放出され、該電子が多孔質半導体を経由して透明電極膜１０２に移動しさらに透明電極膜１０２と対向電極膜１０５との間に接続された外部回路を介して対向電極膜１０５に移動する。電子を放出して酸化した色素は電荷輸送材１０７から電子を受け取って中性化し、電子を失って酸化した電荷輸送材１０７は対向電極膜１０５に移動した電子を受け取って還元される。
特開２００６−１０００６８ In the dye-sensitized solar cell, desired photoelectric conversion is performed in the following cycle. That is, when the transparent light receiving plate 101 is irradiated with white light such as sunlight, the white light reaches the dye of the photoelectric conversion film 103 through the transparent light receiving plate 101 and the transparent electrode film 102, and is excited by light energy from the dye. Electrons are emitted, the electrons move to the transparent electrode film 102 via the porous semiconductor, and further move to the counter electrode film 105 via an external circuit connected between the transparent electrode film 102 and the counter electrode film 105. To do. The dye oxidized by emitting electrons receives the electrons from the charge transport material 107 and is neutralized, and the charge transport material 107 oxidized by losing electrons receives the electrons transferred to the counter electrode film 105 and is reduced.
JP2006-100068

図１に示したＥＲは透明受光板１０１上に設定された有効受光領域であり、該有効受光領域ＥＲは透明受光板１１に向き合う光電変換膜１３の面積及び位置とほぼ一致している。この有効受光領域ＥＲに照射された白色光の殆どは透明受光板１０１及び透明電極膜１０２を通じて光電変換膜１０３に直接的に導かれて所期の光電変換に利用される。   The ER shown in FIG. 1 is an effective light receiving region set on the transparent light receiving plate 101, and the effective light receiving region ER substantially coincides with the area and position of the photoelectric conversion film 13 facing the transparent light receiving plate 11. Most of the white light emitted to the effective light receiving region ER is directly guided to the photoelectric conversion film 103 through the transparent light receiving plate 101 and the transparent electrode film 102 and used for intended photoelectric conversion.

しかし、有効受光領域ＥＲの外縁部分に照射された白色光の一部はその照射角度の関係によって光電変換膜１０３に導かれない場合がある。例えば、図１に矢印で示す照射白色光ＩＢは光電変換膜１０３に導かれずにシール材１０６を通じて外部に漏れ出してしまうか或いはシール材１０６に吸収されてしまうため所期の光電変換には利用されない。このようにして外部に漏れ出してしまう白色光或いはシール材１０６に吸収されてしまう白書光は有効受光領域ＥＲに照射される全ての白色光の数％以下ではあるが、該漏れ出し白色光或いは吸収白色光を所期の光電変換に利用できれば色素増感型太陽電池のエネルギー変換効率を向上できる。   However, part of the white light irradiated on the outer edge portion of the effective light receiving region ER may not be guided to the photoelectric conversion film 103 due to the irradiation angle. For example, the irradiated white light IB indicated by an arrow in FIG. 1 is not guided to the photoelectric conversion film 103 but leaks to the outside through the sealing material 106 or is absorbed by the sealing material 106, so that it is used for intended photoelectric conversion. Not. The white light leaking to the outside in this way or the white writing light absorbed by the sealing material 106 is less than a few percent of all the white light irradiated to the effective light receiving region ER. If the absorbed white light can be used for the intended photoelectric conversion, the energy conversion efficiency of the dye-sensitized solar cell can be improved.

本発明は前記事情に鑑みて創作されたもので、その目的とするところは、透明受光板上に設定された有効受光領域に照射される全ての白色光を所期の光電変換に有効利用してエネルギー変換効率を向上できる色素増感型太陽電池を提供することにある。   The present invention was created in view of the above circumstances, and its object is to effectively use all white light irradiated to an effective light receiving region set on a transparent light receiving plate for intended photoelectric conversion. It is an object of the present invention to provide a dye-sensitized solar cell that can improve energy conversion efficiency.

前記目的を達成するため、本発明は、透明受光板と透明電極膜と光電変換膜と対向板と対向電極膜と電荷輸送材とを備えた色素増感型太陽電池であって、光電変換膜の外側には、透明受光板上に設定された有効受光領域の外縁部分に照射され、且つ、光電変換膜に直接的に導かれない白色光を反射作用により光電変換膜に導く反射部が配されている、ことをその特徴する。   In order to achieve the above object, the present invention provides a dye-sensitized solar cell comprising a transparent light receiving plate, a transparent electrode film, a photoelectric conversion film, a counter plate, a counter electrode film, and a charge transport material, the photoelectric conversion film On the outer side, a reflection part is disposed that irradiates the outer edge portion of the effective light receiving region set on the transparent light receiving plate and guides white light that is not directly guided to the photoelectric conversion film to the photoelectric conversion film by reflection. It is characterized by that.

この色素増感型太陽電池によれば、有効受光領域の外縁部分に照射され、且つ、光電変換膜に直接的に導かれない白色光を反射部による反射作用により光電変換膜に確実に導いて所期の光電変換に確実に利用することができる。つまり、有効受光領域に照射される全ての白色光を所期の光電変換に有効利用してエネルギー変換効率を向上することができる。   According to this dye-sensitized solar cell, the white light that is irradiated to the outer edge portion of the effective light receiving region and that is not directly guided to the photoelectric conversion film is reliably guided to the photoelectric conversion film by the reflection action of the reflection portion. It can be used reliably for the intended photoelectric conversion. That is, energy conversion efficiency can be improved by effectively using all white light irradiated to the effective light receiving region for intended photoelectric conversion.

本発明によれば、透明受光板上に設定された有効受光領域に照射される全ての白色光を所期の光電変換に有効利用してエネルギー変換効率を向上できる。   According to the present invention, energy conversion efficiency can be improved by effectively using all white light irradiated to an effective light receiving region set on a transparent light receiving plate for intended photoelectric conversion.

本発明の前記目的とそれ以外の目的と、構成特徴と、作用効果は、以下の説明と添付図面によって明らかとなる。   The above object and other objects, structural features, and operational effects of the present invention will become apparent from the following description and the accompanying drawings.

［第１実施形態］
図２及び図３は本発明（色素増感型太陽電池）の第１実施形態を示すもので、図２は色素増感型太陽電池の縦断面図、図３は図２に示した対向基板及び対向電極膜の上面図である。 [First Embodiment]
2 and 3 show a first embodiment of the present invention (dye-sensitized solar cell), FIG. 2 is a longitudinal sectional view of the dye-sensitized solar cell, and FIG. 3 is a counter substrate shown in FIG. It is a top view of a counter electrode film.

この色素増感型太陽電池１０は、透明受光板１１と、透明電極膜１２と、光電変換膜１３と、対向板１４と、対向電極膜１５と、絶縁材１６と、電荷輸送材１７とを備えている。   The dye-sensitized solar cell 10 includes a transparent light receiving plate 11, a transparent electrode film 12, a photoelectric conversion film 13, a counter plate 14, a counter electrode film 15, an insulating material 16, and a charge transport material 17. I have.

透明受光板１１はアクリル樹脂等の透明プラスチックや透明ガラス等から成り、矩形板状に形成されている。   The transparent light receiving plate 11 is made of transparent plastic such as acrylic resin, transparent glass, or the like, and is formed in a rectangular plate shape.

透明電極膜１２は錫ドープ酸化インジウム（ＩＴＯ）やフッ素ドープ酸化錫（ＦＴＯ）等から成り、透明受光板１１の下面に付設されていてその外周面を外部に露出している。   The transparent electrode film 12 is made of tin-doped indium oxide (ITO), fluorine-doped tin oxide (FTO), or the like. The transparent electrode film 12 is attached to the lower surface of the transparent light receiving plate 11 and the outer peripheral surface thereof is exposed to the outside.

光電変換層１３は多孔質半導体及びその表面に吸着された色素を含み、透明受光板１１の下面に付設されている。多孔質半導体は、半導体特性を有する遷移金属の酸化物または複合酸化物、例えばＴｉＯ2，ＳｎＯ2，ＺｎＯ，Ｎｂ2Ｏ5，Ｎｂ2Ｏ6，ＺｒＯ2，ＣｅＯ2，ＷＯ3，ＳｉＯ2，Ａｌ2Ｏ3，ＮｉＯ，Ｔａ2Ｏ5，ＣｕＡｌＯ2，ＳｒＣｕ2Ｏ2，ＳｒＴｉＯ3，ＣａＴｉＯ3，ＫＴａＯ3等から成る。この多孔質半導体は多数の微細孔を有することから、微細孔の内面を含む全体の表面積は極めて大きい。また、色素は、ルテニウム金属錯体色素や、ルテニウム以外のオスミウム，鉄，レニウム，銅等の金属錯体色素や、メチン色素，マーキュロクロム色素，キサンテン系色素，ポリフィリン色素，フタロシアニン色素，クマリン系色素等の有機色素等から成る。 The photoelectric conversion layer 13 includes a porous semiconductor and a dye adsorbed on the surface thereof, and is attached to the lower surface of the transparent light receiving plate 11. The porous semiconductor is an oxide or composite oxide of a transition metal having semiconductor characteristics, such as TiO 2 , SnO 2 , ZnO, Nb 2 O 5 , Nb 2 O 6 , ZrO 2 , CeO 2 , WO 3 , SiO 2 , It consists of Al 2 O 3 , NiO, Ta 2 O 5 , CuAlO 2 , SrCu 2 O 2 , SrTiO 3 , CaTiO 3 , KTaO 3 and the like. Since this porous semiconductor has many micropores, the entire surface area including the inner surface of the micropores is extremely large. In addition, dyes are organic compounds such as ruthenium metal complex dyes, metal complex dyes such as osmium, iron, rhenium and copper other than ruthenium, methine dyes, mercurochrome dyes, xanthene dyes, porphyrin dyes, phthalocyanine dyes, and coumarin dyes. Consists of pigments and the like.

対向板１４はアクリル樹脂等の透明プラスチックや透明ガラス等から成るが、必ずしも透明である必要はない。この対向板１４は矩形容器状に形成されていて、矩形状の底面部１４ａと該底面部１４ａの周囲に一体形成された４つの側面部１４ｂとを有する。各側面部１４ｂの内面には内側に向かって下向きに傾く傾斜面１４ｂ１がそれぞれ形成されており、各傾斜面１４ｂ１は底面部１４ａに対して鈍角を成す傾きを有している。また、１つの側面部１４ｂの上面には傾斜面１４ｂ１の上端から外面に至る溝１４ｃが形成されている。   The counter plate 14 is made of transparent plastic such as acrylic resin or transparent glass, but is not necessarily transparent. The opposing plate 14 is formed in a rectangular container shape, and has a rectangular bottom surface portion 14a and four side surface portions 14b integrally formed around the bottom surface portion 14a. An inclined surface 14b1 inclined downward toward the inside is formed on the inner surface of each side surface portion 14b, and each inclined surface 14b1 has an inclination that forms an obtuse angle with respect to the bottom surface portion 14a. Further, a groove 14c extending from the upper end of the inclined surface 14b1 to the outer surface is formed on the upper surface of one side surface portion 14b.

対向電極膜１５は白金，カーボン，導電性プラスチック等の導電性高分子等から成り、対向板１４の底面部１４ａの上面に付設された底面部１５ａと該底面部１５ａと連続して各側面部１４ｂの内面に付設された反射部１５ｂと１つの反射部１５ｂと連続して溝１４ｃの内側に付設された端子部１５ｃとを一体に有しており、端子部１５ｃの外面は外部に露出している。本実施形態における各反射部１５ｂは対向電極膜１５の一部によって構成されており、各反射部１５ｂは透明電極膜１２に対して鋭角を成す傾きを有し、透明電極膜１２の外側に該透明電極膜１２を囲むように配されている。また、各反射部１５ｂは光電変換膜１２に接触しておらず、絶縁材１６を存在によって透明電極膜１２と電気的に絶縁されている。   The counter electrode film 15 is made of a conductive polymer such as platinum, carbon, or conductive plastic, and has a bottom surface portion 15a attached to the top surface of the bottom surface portion 14a of the counter plate 14 and each side surface portion continuous to the bottom surface portion 15a. 14 b integrally includes a reflecting portion 15 b attached to the inner surface of 14 b and one reflecting portion 15 b and a terminal portion 15 c attached to the inner side of the groove 14 c, and the outer surface of the terminal portion 15 c is exposed to the outside. ing. Each reflection part 15b in this embodiment is comprised by a part of counter electrode film | membrane 15, and each reflection part 15b has the inclination which makes an acute angle with respect to the transparent electrode film | membrane 12, It arrange | positions so that the transparent electrode film 12 may be enclosed. Further, each reflecting portion 15b is not in contact with the photoelectric conversion film 12, and is electrically insulated from the transparent electrode film 12 by the presence of the insulating material 16.

絶縁材１６はシリコーン系樹脂，エポキシ樹脂，アクリル樹脂等の熱硬化性プラスチックや光硬化性プラスチック等から成り、矩形枠状に形成されている。この絶縁材１６は、透明電極膜１２と、対向板１４の各側面部１４ｂ及び対向電極膜１５の各反射部１５ｂの上面との間に配置されており、電荷輸送材１７の漏洩を防止するシール材の役目も成している。   The insulating material 16 is made of a thermosetting plastic such as a silicone resin, an epoxy resin, or an acrylic resin, a photocurable plastic, or the like, and is formed in a rectangular frame shape. The insulating material 16 is disposed between the transparent electrode film 12 and the upper surfaces of the side surface portions 14b of the counter plate 14 and the reflecting portions 15b of the counter electrode film 15, and prevents the charge transport material 17 from leaking. It also serves as a sealing material.

電荷輸送材１７は酸化還元性電解質を含む液体或いはゲル、例えばヨウ素レドックスカップル（Ｉ-／Ｉ3 -）を含むアセトニトリル系溶媒や、これにゲル化剤を添加したもの等から成る。この電荷輸送材１７は透明電極膜１２，対向電極膜１５及び絶縁材１６で囲まれた空間に充填されている。 The charge transport material 17 is made of a liquid or gel containing a redox electrolyte, for example, an acetonitrile-based solvent containing iodine redox couple (I − / I 3 − ), or a material added with a gelling agent. The charge transport material 17 is filled in a space surrounded by the transparent electrode film 12, the counter electrode film 15, and the insulating material 16.

因みに、図２に示したＥＲは透明受光板１１上に設定された有効受光領域であり、該有効受光領域ＥＲは透明受光板１１に向き合う光電変換膜１３の面積及び位置とほぼ一致している。   Incidentally, ER shown in FIG. 2 is an effective light receiving region set on the transparent light receiving plate 11, and the effective light receiving region ER substantially coincides with the area and position of the photoelectric conversion film 13 facing the transparent light receiving plate 11. .

前記の色素増感型太陽電池１０にあっては、透明電極膜１２の露出外周面と対向電極膜１５の端子部１５ｃの露出外面が色素増感型太陽電池１０の出力端子として利用される。   In the dye-sensitized solar cell 10, the exposed outer peripheral surface of the transparent electrode film 12 and the exposed outer surface of the terminal portion 15 c of the counter electrode film 15 are used as output terminals of the dye-sensitized solar cell 10.

前記の色素増感型太陽電池１０にあっては、従前の色素増感型太陽電池と同様に、以下のようなサイクルで所期の光電変換が行われる。即ち、透明受光板１１に太陽光等の白色光が照射されると、該白色光は透明受光板１１及び透明電極膜１２を通じて光電変換膜１３の色素に到達し、光エネルギーによる励起によって色素から電子が放出され、該電子が多孔質半導体を経由して透明電極膜１２に移動しさらに透明電極膜１２と対向電極膜１５との間に接続された外部回路を介して対向電極膜１５に移動する。電子を放出して酸化した色素は電荷輸送材１７から電子を受け取って中性化し、電子を失って酸化した電荷輸送材１７は対向電極膜１５に移動した電子を受け取って還元される。   In the dye-sensitized solar cell 10 described above, as in the conventional dye-sensitized solar cell, desired photoelectric conversion is performed in the following cycle. That is, when the transparent light receiving plate 11 is irradiated with white light such as sunlight, the white light reaches the dye of the photoelectric conversion film 13 through the transparent light receiving plate 11 and the transparent electrode film 12, and is excited from the dye by light energy. Electrons are emitted, the electrons move to the transparent electrode film 12 via the porous semiconductor, and further move to the counter electrode film 15 via an external circuit connected between the transparent electrode film 12 and the counter electrode film 15. To do. The dye that has been oxidized by emitting electrons receives the electrons from the charge transport material 17 to be neutralized, and the charge transport material 17 that has been oxidized by losing electrons receives the electrons transferred to the counter electrode film 15 and is reduced.

透明受光板１１上に設定された有効受光領域ＥＲに照射された白色光の殆どは透明受光板１１及び透明電極膜１２を通じて光電変換膜１３に直接的に導かれて所期の光電変換に利用されるが、有効受光領域ＥＲの外縁部分に照射された白色光の一部はその照射角度の関係によって直接的に光電変換膜１３に導かれない場合がある。   Most of the white light irradiated to the effective light receiving region ER set on the transparent light receiving plate 11 is directly guided to the photoelectric conversion film 13 through the transparent light receiving plate 11 and the transparent electrode film 12 and used for intended photoelectric conversion. However, a part of the white light irradiated to the outer edge portion of the effective light receiving region ER may not be directly guided to the photoelectric conversion film 13 due to the relationship of the irradiation angle.

例えば、図２に矢印に示す照射白色光ＩＢは光電変換膜１３に導かれずに対向電極膜１５の反射部１５ｂに到達することになるが、該照射白色光ＩＢは透明電極膜１２の外側に該透明電極膜１２を囲むように配された反射部１５ｂで反射して、或いは、反射部１５ｂ及び底面部１５ａで反射して光電変換膜１３に導かれることになる。   For example, the irradiated white light IB indicated by an arrow in FIG. 2 reaches the reflecting portion 15b of the counter electrode film 15 without being guided to the photoelectric conversion film 13, but the irradiated white light IB is outside the transparent electrode film 12. The light is reflected by the reflecting portion 15 b disposed so as to surround the transparent electrode film 12, or is reflected by the reflecting portion 15 b and the bottom surface portion 15 a and is guided to the photoelectric conversion film 13.

要するに、有効受光領域ＥＲの外縁部分に照射され、且つ、光電変換膜１３に直接的に導かれない白色光ＩＢを反射部１５ｂによる反射作用により光電変換膜１３に確実に導いて所期の光電変換に利用することができる。つまり、有効受光領域ＥＲに照射される全ての白色光を所期の光電変換に有効利用してエネルギー変換効率を向上することができる。   In short, the white light IB that is irradiated to the outer edge portion of the effective light receiving region ER and that is not directly guided to the photoelectric conversion film 13 is reliably guided to the photoelectric conversion film 13 by the reflection action of the reflecting portion 15b, and the desired photoelectric conversion is performed. Can be used for conversion. That is, energy conversion efficiency can be improved by effectively using all white light irradiated to the effective light receiving region ER for intended photoelectric conversion.

また、前記の色素増感型太陽電池１０にあっては、各反射部１５ｂは対向電極膜１５の一部によって構成されていて透明電極膜１２に対して鋭角を成す傾きを有しているので、スパッタリングや蒸着等の周知手法によって対向電極膜１５を形成する際に該各反射部１５ｂを同時に、且つ、均一な厚さで形成できると共に１つの反射部１５ｂと連続する端子部１５ｃをも同時に、且つ、均一な厚さで形成できる。   In the dye-sensitized solar cell 10 described above, each reflecting portion 15b is constituted by a part of the counter electrode film 15 and has an inclination that forms an acute angle with respect to the transparent electrode film 12. When the counter electrode film 15 is formed by a well-known method such as sputtering or vapor deposition, the reflecting portions 15b can be formed at the same time and with a uniform thickness, and the terminal portion 15c continuous with one reflecting portion 15b can be formed simultaneously. And can be formed with a uniform thickness.

要するに、各反射部１５ｂ及び端子部１５ｃの形成を容易に行うことができると共に、対向電極膜１５，各反射部１５ｂ及び端子部１５ｃに厚さムラを原因とした断線が生じることを未然に防止することができる。   In short, the reflection portions 15b and the terminal portions 15c can be easily formed, and the counter electrode film 15, the reflection portions 15b, and the terminal portions 15c can be prevented from being disconnected due to thickness unevenness. can do.

［第２実施形態］
図４は本発明（色素増感型太陽電池）の第２実施形態を示す、色素増感型太陽電池の縦断面図である。 [Second Embodiment]
FIG. 4 is a longitudinal sectional view of a dye-sensitized solar cell showing a second embodiment of the present invention (dye-sensitized solar cell).

この色素増感型太陽電池１０’が第１実施形態の色素増感型太陽電池１０と異なるところは、
（１）反射部１５ｂの代わりとなる反射部１８を対向電極膜１５’とは別パーツとして該対向電極膜１５’と非接触状態で設けた点、具体的には、光沢のある金属、例えば白金，タングステン，タンタル，チタン，ニッケル，ニオブ，インジウム等から成る反射部１８を各側面部１４ｂの内面に互いが連続し、且つ、その下端が対向電極膜１５’と離反して電気的に絶縁された状態で付設した点
（２）端子部１５ｃの代わりと成る端子部Ｅ１を設けて対向板１４から溝１４ｃを排除した点、具体的には、対向板１４の底面部１４ａの所定位置にその下面から対向電極膜１５’に至る孔１４ｄを形成して、該孔１４ｄ内に高導電性の金属、例えばニッケル，銅等を充填して端子部Ｅ１を構成した点（但し、端子部Ｅ１が電荷輸送材１７に触れるような場合には腐食を生じない金属を選択する）
にある。他の構成は第１実施形態の色素増感型太陽電池１０と同じであるためその説明を省略する。 The difference between the dye-sensitized solar cell 10 ′ and the dye-sensitized solar cell 10 of the first embodiment is that
(1) The point that the reflective portion 18 instead of the reflective portion 15b is provided as a separate part from the counter electrode film 15 ′ in a non-contact state with the counter electrode film 15 ′, specifically, a glossy metal, for example, Reflective portions 18 made of platinum, tungsten, tantalum, titanium, nickel, niobium, indium, etc. are continuous with the inner surface of each side surface portion 14b, and their lower ends are separated from the counter electrode film 15 'to be electrically insulated. (2) A point provided with a terminal portion E1 instead of the terminal portion 15c to eliminate the groove 14c from the counter plate 14, specifically, at a predetermined position of the bottom surface portion 14a of the counter plate 14 A hole 14d extending from the lower surface to the counter electrode film 15 ′ is formed, and the terminal portion E1 is configured by filling the hole 14d with a highly conductive metal such as nickel or copper (however, the terminal portion E1). Touches the charge transport material 17 Select a metal that does not cause corrosion)
It is in. Since other configurations are the same as those of the dye-sensitized solar cell 10 of the first embodiment, description thereof is omitted.

前記の色素増感型太陽電池１０’にあっては、透明電極膜１２の露出外周面と端子部Ｅ１の露出外面が色素増感型太陽電池２０の出力端子として利用される。   In the dye-sensitized solar cell 10 ′, the exposed outer peripheral surface of the transparent electrode film 12 and the exposed outer surface of the terminal portion E 1 are used as output terminals of the dye-sensitized solar cell 20.

前記の色素増感型太陽電池１０’にあっては、透明受光板１１上に設定された有効受光領域ＥＲ（図２参照）の外縁部分に照射された白色光のうち直接的に光電変換膜１３に導かれない白色光の一部（図２の矢印ＩＢ参照）は反射部１８に到達し、該照射白色光ＩＢは透明電極膜１２の外側に該透明電極膜１２を囲むように配された反射部１８で反射して、或いは、反射部１８及び対向電極膜１５’で反射して光電変換膜１３に導かれることになる。   In the dye-sensitized solar cell 10 ′ described above, the photoelectric conversion film directly out of the white light irradiated to the outer edge portion of the effective light receiving region ER (see FIG. 2) set on the transparent light receiving plate 11 A part of the white light not guided to 13 (see arrow IB in FIG. 2) reaches the reflecting portion 18, and the irradiated white light IB is arranged outside the transparent electrode film 12 so as to surround the transparent electrode film 12. The light is reflected by the reflecting portion 18 or reflected by the reflecting portion 18 and the counter electrode film 15 ′ and led to the photoelectric conversion film 13.

要するに、有効受光領域ＥＲの外縁部分に照射され、且つ、光電変換膜１３に直接的に導かれない白色光ＩＢを反射部１８による反射作用により光電変換膜１３に確実に導いて所期の光電変換に利用することができる。つまり、有効受光領域ＥＲに照射される全ての白色光を所期の光電変換に有効利用してエネルギー変換効率を向上することができる。   In short, the white light IB that is irradiated to the outer edge portion of the effective light receiving region ER and that is not directly guided to the photoelectric conversion film 13 is reliably guided to the photoelectric conversion film 13 by the reflection action of the reflection unit 18, so Can be used for conversion. That is, energy conversion efficiency can be improved by effectively using all white light irradiated to the effective light receiving region ER for intended photoelectric conversion.

［第３実施形態］
図５は本発明（色素増感型太陽電池）の第３実施形態を示す、色素増感型太陽電池の縦断面図である。 [Third Embodiment]
FIG. 5 is a longitudinal sectional view of a dye-sensitized solar cell showing a third embodiment of the present invention (dye-sensitized solar cell).

この色素増感型太陽電池２０は、透明受光板２１と、透明電極膜２２と、光電変換膜２３と、対向板２４と、対向電極膜２５と、絶縁材２６と、電荷輸送材２７とを備えている。   This dye-sensitized solar cell 20 includes a transparent light receiving plate 21, a transparent electrode film 22, a photoelectric conversion film 23, a counter plate 24, a counter electrode film 25, an insulating material 26, and a charge transport material 27. I have.

透明受光板２１はアクリル樹脂等の透明プラスチックや透明ガラス等から成り、矩形板状に形成されている。   The transparent light receiving plate 21 is made of transparent plastic such as acrylic resin, transparent glass, or the like, and is formed in a rectangular plate shape.

透明電極膜２２は錫ドープ酸化インジウム（ＩＴＯ）やフッ素ドープ酸化錫（ＦＴＯ）等から成り、透明受光板２１の下面に付設されていてその外周面を外部に露出している。   The transparent electrode film 22 is made of tin-doped indium oxide (ITO), fluorine-doped tin oxide (FTO), or the like. The transparent electrode film 22 is attached to the lower surface of the transparent light receiving plate 21 and exposes its outer peripheral surface to the outside.

光電変換膜２３は多孔質半導体及びその表面に吸着された色素を含み、透明受光板２１の下面に付設されている。多孔質半導体は、半導体特性を有する遷移金属の酸化物または複合酸化物、例えばＴｉＯ2，ＳｎＯ2，ＺｎＯ，Ｎｂ2Ｏ5，Ｎｂ2Ｏ6，ＺｒＯ2，ＣｅＯ2，ＷＯ3，ＳｉＯ2，Ａｌ2Ｏ3，ＮｉＯ，Ｔａ2Ｏ5，ＣｕＡｌＯ2，ＳｒＣｕ2Ｏ2，ＳｒＴｉＯ3，ＣａＴｉＯ3，ＫＴａＯ3等から成る。この多孔質半導体は多数の微細孔を有することから、微細孔の内面を含む全体の表面積は極めて大きい。また、色素は、ルテニウム金属錯体色素や、ルテニウム以外のオスミウム，鉄，レニウム，銅等の金属錯体色素や、メチン色素，マーキュロクロム色素，キサンテン系色素，ポリフィリン色素，フタロシアニン色素，クマリン系色素等の有機色素等から成る。 The photoelectric conversion film 23 includes a porous semiconductor and a dye adsorbed on the surface thereof, and is attached to the lower surface of the transparent light receiving plate 21. The porous semiconductor is an oxide or composite oxide of a transition metal having semiconductor characteristics, such as TiO 2 , SnO 2 , ZnO, Nb 2 O 5 , Nb 2 O 6 , ZrO 2 , CeO 2 , WO 3 , SiO 2 , It consists of Al 2 O 3 , NiO, Ta 2 O 5 , CuAlO 2 , SrCu 2 O 2 , SrTiO 3 , CaTiO 3 , KTaO 3 and the like. Since this porous semiconductor has many micropores, the entire surface area including the inner surface of the micropores is extremely large. In addition, dyes are organic compounds such as ruthenium metal complex dyes, metal complex dyes such as osmium, iron, rhenium and copper other than ruthenium, methine dyes, mercurochrome dyes, xanthene dyes, porphyrin dyes, phthalocyanine dyes, and coumarin dyes. Consists of pigments and the like.

対向板２４はアクリル樹脂等の透明プラスチックや透明ガラス等から成るが、必ずしも透明である必要はない。この対向板２４は矩形容器状に形成されていて、矩形状の底面部２４ａと該底面部２４ａの周囲に一体形成された４つの側面部２４ｂとを有する。各側面部２４ｂの内面には非傾斜面２４ｂ１がそれぞれ形成されており、各非傾斜面２４ｂ１は底面部２４ａに対して直角を成している。また、１つの側面部２４ｂの上面には非傾斜面２４ｂ１の上端から外面に至る溝２４ｃが形成されている。   The counter plate 24 is made of transparent plastic such as acrylic resin, transparent glass, or the like, but is not necessarily transparent. The opposing plate 24 is formed in a rectangular container shape, and has a rectangular bottom surface portion 24a and four side surface portions 24b integrally formed around the bottom surface portion 24a. A non-inclined surface 24b1 is formed on the inner surface of each side surface portion 24b, and each non-inclined surface 24b1 is perpendicular to the bottom surface portion 24a. Further, a groove 24c extending from the upper end of the non-inclined surface 24b1 to the outer surface is formed on the upper surface of one side surface portion 24b.

対向電極膜２５は白金，カーボン，導電性プラスチック等の導電性高分子等から成り、対向板２４の底面部２４ａの上面に付設された底面部２５ａと該底面部２５ａと連続して各側面部２４ｂの内面に付設された反射部２５ｂと１つの反射部２５ｂと連続して溝２４ｃの内側に付設された端子部２５ｃとを一体に有しており、端子部２５ｃの外面は外部に露出している。本実施形態における各反射部２５ｂは対向電極膜１５の一部によって構成されており、各反射部２５ｂは透明電極膜２２に対して直角を成し、透明電極膜２２の外側に該透明電極膜２２を囲むように配されている。また、各反射部２５ｂは光電変換膜２２に接触しておらず、絶縁材２６を存在によって透明電極膜２２と電気的に絶縁されている。   The counter electrode film 25 is made of a conductive polymer such as platinum, carbon, or conductive plastic, and has a bottom surface portion 25a attached to the top surface of the bottom surface portion 24a of the counter plate 24 and each side surface portion continuous to the bottom surface portion 25a. The reflecting portion 25b attached to the inner surface of 24b and the terminal portion 25c attached to the inner side of the groove 24c are integrated with one reflecting portion 25b, and the outer surface of the terminal portion 25c is exposed to the outside. ing. Each reflection part 25b in this embodiment is comprised by a part of counter electrode film 15, each reflection part 25b comprises a right angle with respect to the transparent electrode film 22, and this transparent electrode film is outside the transparent electrode film 22. 22 is arranged so as to surround. In addition, each reflecting portion 25 b is not in contact with the photoelectric conversion film 22, and is electrically insulated from the transparent electrode film 22 by the presence of the insulating material 26.

絶縁材２６はシリコーン系樹脂，エポキシ樹脂，アクリル樹脂等の熱硬化性プラスチックや光硬化性プラスチック等から成り、矩形枠状に形成されている。この絶縁材２６は、透明電極膜２２と、対向板２４の各側面部２４ｂ及び対向電極膜２５の各反射部２５ｂの上面との間に配置されており、電荷輸送材２７の漏洩を防止するシール材の役目も成している。   The insulating material 26 is made of a thermosetting plastic such as a silicone resin, an epoxy resin, or an acrylic resin, a photocurable plastic, or the like, and is formed in a rectangular frame shape. The insulating material 26 is disposed between the transparent electrode film 22 and the top surfaces of the side surface portions 24b of the counter plate 24 and the reflective portions 25b of the counter electrode film 25, and prevents leakage of the charge transport material 27. It also serves as a sealing material.

電荷輸送材２７は酸化還元性電解質を含む液体或いはゲル、例えばヨウ素レドックスカップル（Ｉ-／Ｉ3 -）を含むアセトニトリル系溶媒や、これにゲル化剤を添加したもの等から成る。この電荷輸送材２７は透明電極膜２２，対向電極膜２５及び絶縁材２６で囲まれた空間に充填されている。 The charge transport material 27 is composed of a liquid or gel containing a redox electrolyte, for example, an acetonitrile-based solvent containing iodine redox couple (I − / I 3 − ), or a material added with a gelling agent. The charge transport material 27 is filled in a space surrounded by the transparent electrode film 22, the counter electrode film 25 and the insulating material 26.

前記の色素増感型太陽電池２０にあっては、透明電極膜２２の露出外周面と対向電極膜２５の端子部２５ｃの露出外面が色素増感型太陽電池２０の出力端子として利用される。   In the dye-sensitized solar cell 20, the exposed outer peripheral surface of the transparent electrode film 22 and the exposed outer surface of the terminal portion 25 c of the counter electrode film 25 are used as output terminals of the dye-sensitized solar cell 20.

前記の色素増感型太陽電池２０にあっては、従前の色素増感型太陽電池と同様に、以下のようなサイクルで所期の光電変換が行われる。即ち、透明受光板２１に太陽光等の白色光が照射されると、該白色光は透明受光板２１及び透明電極膜２２を通じて光電変換膜２３の色素に到達し、光エネルギーによる励起によって色素から電子が放出され、該電子が多孔質半導体を経由して透明電極膜２２に移動しさらに透明電極膜２２と対向電極膜２５との間に接続された外部回路を介して対向電極膜２５に移動する。電子を放出して酸化した色素は電荷輸送材２７から電子を受け取って中性化し、電子を失って酸化した電荷輸送材２７は対向電極膜２５に移動した電子を受け取って還元される。   In the dye-sensitized solar cell 20, the desired photoelectric conversion is performed in the following cycle as in the conventional dye-sensitized solar cell. That is, when the transparent light receiving plate 21 is irradiated with white light such as sunlight, the white light reaches the dye of the photoelectric conversion film 23 through the transparent light receiving plate 21 and the transparent electrode film 22, and from the dye by excitation by light energy. Electrons are emitted, the electrons move to the transparent electrode film 22 via the porous semiconductor, and further move to the counter electrode film 25 via an external circuit connected between the transparent electrode film 22 and the counter electrode film 25. To do. The oxidized dye emitting electrons is neutralized by receiving electrons from the charge transport material 27, and the charge transport material 27 oxidized by losing electrons receives the electrons transferred to the counter electrode film 25 and is reduced.

透明受光板２１上に設定された有効受光領域ＥＲに照射された白色光の殆どは透明受光板２１及び透明電極膜２２を通じて光電変換膜２３に直接的に導かれて所期の光電変換に利用されるが、有効受光領域ＥＲの外縁部分に照射された白色光の一部はその照射角度の関係によって直接的に光電変換膜２３に導かれない場合がある。   Most of the white light irradiated to the effective light receiving region ER set on the transparent light receiving plate 21 is directly guided to the photoelectric conversion film 23 through the transparent light receiving plate 21 and the transparent electrode film 22 and used for intended photoelectric conversion. However, part of the white light irradiated to the outer edge portion of the effective light receiving region ER may not be directly guided to the photoelectric conversion film 23 due to the relationship of the irradiation angle.

例えば、図２に矢印に示したような照射白色光ＩＢは光電変換膜２３に導かれずに対向電極膜２５の反射部２５ｂに到達することになるが、該照射白色光ＩＢは透明電極膜２２の外側に該透明電極膜２２を囲むように配された反射部２５ｂで反射して、或いは、反射部２５ｂ及び底面部２５ａで反射して光電変換膜２３に導かれることになる。   For example, the irradiated white light IB as shown by the arrow in FIG. 2 reaches the reflecting portion 25 b of the counter electrode film 25 without being guided to the photoelectric conversion film 23, but the irradiated white light IB is transmitted to the transparent electrode film 22. The light is reflected by the reflecting portion 25b disposed so as to surround the transparent electrode film 22 on the outer side, or reflected by the reflecting portion 25b and the bottom surface portion 25a and led to the photoelectric conversion film 23.

要するに、有効受光領域ＥＲの外縁部分に照射され、且つ、光電変換膜２３に直接的に導かれない白色光ＩＢを反射部２５ｂによる反射作用により光電変換膜２３に確実に導いて所期の光電変換に利用することができる。つまり、有効受光領域ＥＲに照射される全ての白色光を所期の光電変換に有効利用してエネルギー変換効率を向上することができる。   In short, the white light IB that is irradiated to the outer edge portion of the effective light receiving region ER and that is not directly guided to the photoelectric conversion film 23 is reliably guided to the photoelectric conversion film 23 by the reflection action of the reflecting portion 25b, and the desired photoelectric conversion is performed. Can be used for conversion. That is, energy conversion efficiency can be improved by effectively using all white light irradiated to the effective light receiving region ER for intended photoelectric conversion.

また、前記の色素増感型太陽電池２０にあっては、各反射部１５ｂは対向電極膜２５の一部によって構成されているので、スパッタリングや蒸着等の周知手法によって対向電極膜２５を形成する際に該各反射部２５ｂを同時に、且つ、均一な厚さで形成できると共に１つの反射部２５ｂと連続する端子部２５ｃをも同時に、且つ、均一な厚さで形成できる。   Further, in the dye-sensitized solar cell 20 described above, since each reflecting portion 15b is constituted by a part of the counter electrode film 25, the counter electrode film 25 is formed by a known method such as sputtering or vapor deposition. At the same time, the reflecting portions 25b can be formed simultaneously and with a uniform thickness, and the terminal portion 25c connected to one reflecting portion 25b can be formed simultaneously and with a uniform thickness.

要するに、各反射部２５ｂ及び端子部２５ｃの形成を容易に行うことができると共に、対向電極膜２５，各反射部２５ｂ及び端子部２５ｃに厚さムラを原因とした断線が生じることを未然に防止することができる。   In short, the reflection portions 25b and the terminal portions 25c can be easily formed, and the occurrence of disconnection due to thickness unevenness in the counter electrode film 25, the reflection portions 25b, and the terminal portions 25c can be prevented. can do.

［第４実施形態］
図６は本発明（色素増感型太陽電池）の第４実施形態を示す、色素増感型太陽電池の縦断面図である。 [Fourth Embodiment]
FIG. 6 is a longitudinal sectional view of a dye-sensitized solar cell showing a fourth embodiment of the present invention (dye-sensitized solar cell).

この色素増感型太陽電池２０’が第３実施形態の色素増感型太陽電池２０と異なるところは、
（１）反射部２５ｂの代わりとなる反射部２８を対向電極膜２５’とは別パーツとして該対向電極膜２５’と非接触状態で設けた点、具体的には、光沢のある金属、例えば白金，タングステン，タンタル，チタン，ニッケル，ニオブ，インジウム等から成る反射部２８を各側面部２４ｂの内面に互いが連続し、且つ、その下端が対向電極膜２５’と離反して電気的に絶縁された状態で付設した点
（２）端子部２５ｃの代わりと成る端子部Ｅ１を設けて対向板２４から溝２４ｃを排除した点、具体的には、対向板２４の底面部２４ａの所定位置にその下面から対向電極膜２５’に至る孔２４ｄを形成して、該孔２４ｄ内に高導電性の金属、例えばニッケル，銅等を充填して端子部Ｅ１を構成した点（但し、端子部Ｅ１が電荷輸送材２７に触れるような場合には腐食を生じない金属を選択する）
にある。他の構成は第３実施形態の色素増感型太陽電池２０と同じであるためその説明を省略する。 This dye-sensitized solar cell 20 ′ is different from the dye-sensitized solar cell 20 of the third embodiment in that
(1) The point that the reflecting portion 28 instead of the reflecting portion 25b is provided as a separate part from the counter electrode film 25 ′ in a non-contact state with the counter electrode film 25 ′, specifically, a glossy metal, for example, Reflective portions 28 made of platinum, tungsten, tantalum, titanium, nickel, niobium, indium, etc. are continuous with the inner surface of each side surface portion 24b, and their lower ends are separated from the counter electrode film 25 'to be electrically insulated. (2) A point provided in place of the terminal portion 25c is provided with a terminal portion E1 to eliminate the groove 24c from the counter plate 24, specifically, at a predetermined position of the bottom surface portion 24a of the counter plate 24. A hole 24d extending from the lower surface to the counter electrode film 25 'is formed, and the hole 24d is filled with a highly conductive metal such as nickel, copper or the like to form the terminal portion E1 (however, the terminal portion E1 Touch the charge transport material 27 Select a metal that does not cause corrosion)
It is in. Since other configurations are the same as those of the dye-sensitized solar cell 20 of the third embodiment, description thereof is omitted.

前記の色素増感型太陽電池２０’にあっては、透明電極膜２２の露出外周面と端子部Ｅ１の露出外面が色素増感型太陽電池２０’の出力端子として利用される。   In the dye-sensitized solar cell 20 ', the exposed outer peripheral surface of the transparent electrode film 22 and the exposed outer surface of the terminal portion E1 are used as output terminals of the dye-sensitized solar cell 20'.

前記の色素増感型太陽電池２０’にあっては、透明受光板２１上に設定された有効受光領域ＥＲ（図２参照）の外縁部分に照射された白色光のうち直接的に光電変換膜２３に導かれない白色光の一部（図２の矢印ＩＢ参照）は反射部２８に到達し、該照射白色光ＩＢは透明電極膜２２の外側に該透明電極膜２２を囲むように配された反射部２８で反射して、或いは、反射部２８及び対向電極膜２５’で反射して光電変換膜２３に導かれることになる。   In the dye-sensitized solar cell 20 ′ described above, the photoelectric conversion film directly out of the white light irradiated to the outer edge portion of the effective light receiving region ER (see FIG. 2) set on the transparent light receiving plate 21. A part of the white light not guided to 23 (see arrow IB in FIG. 2) reaches the reflecting portion 28, and the irradiated white light IB is arranged outside the transparent electrode film 22 so as to surround the transparent electrode film 22. The light is reflected by the reflecting portion 28 or reflected by the reflecting portion 28 and the counter electrode film 25 ′ and led to the photoelectric conversion film 23.

要するに、有効受光領域ＥＲの外縁部分に照射され、且つ、光電変換膜２３に直接的に導かれない白色光ＩＢを反射部２８による反射作用により光電変換膜２３に確実に導いて所期の光電変換に利用することができる。つまり、有効受光領域ＥＲに照射される全ての白色光を所期の光電変換に有効利用してエネルギー変換効率を向上することができる。   In short, the white light IB that is irradiated to the outer edge portion of the effective light receiving region ER and that is not directly guided to the photoelectric conversion film 23 is reliably guided to the photoelectric conversion film 23 by the reflection action of the reflection unit 28, and the intended photoelectric Can be used for conversion. That is, energy conversion efficiency can be improved by effectively using all white light irradiated to the effective light receiving region ER for intended photoelectric conversion.

［第５実施形態］
図７は本発明（色素増感型太陽電池）の第５実施形態を示す、色素増感型太陽電池の縦断面図である。 [Fifth Embodiment]
FIG. 7 is a longitudinal sectional view of a dye-sensitized solar cell, showing a fifth embodiment of the present invention (dye-sensitized solar cell).

この色素増感型太陽電池３０は、透明受光板３１と、透明電極膜３２と、光電変換膜３３と、対向板３４と、対向電極膜３５と、絶縁材３６と、電荷輸送材３７とを備えている。   The dye-sensitized solar cell 30 includes a transparent light receiving plate 31, a transparent electrode film 32, a photoelectric conversion film 33, a counter plate 34, a counter electrode film 35, an insulating material 36, and a charge transport material 37. I have.

透明受光板３１，透明電極膜３２，光電変換膜３３，対向板３４，対向電極膜３５，絶縁材３６及び電荷輸送材３７の構成は第１実施形態の色素増感型太陽電池１０の透明受光板１１，透明電極膜１２，光電変換膜１３，対向板１４，対向電極膜１５，絶縁材１６及び電荷輸送材１７と基本的に同じであるが、
（１）端子部１５ｃの代わりと成る端子部Ｅ１を設けて対向板１４から溝１４ｃを排除した点、具体的には、対向板３４の底面部３４ａの所定位置にその下面から対向電極膜３５に至る孔３４ｃを形成して、該孔３４ｃ内に高導電性の金属、例えばニッケル，銅等を充填して端子部Ｅ１を構成した点（但し、端子部Ｅ１が電荷輸送材３７に触れるような場合には腐食を生じない金属を選択する）
（２）透明電極膜３２のサイズを小さくしてその外周面が外部に露出しないようにした点
（３）透明受光板３１の所定位置にその上面から透明電極膜３３に至る孔３１ａを形成して、該孔３１ａ内に高導電性の金属、例えばニッケル，銅等を充填して端子部Ｅ２を構成した点（但し、端子部Ｅ２が電荷輸送材３７に触れるような場合には腐食を生じない金属を選択する）
（４）絶縁材３６の厚みを透明電極膜３２の厚み分だけ増加させてその上面を透明受光板３１に接触させ、且つ、その内面を透明電極膜３２の外周面に接触させた点
で第１実施形態の色素増感型太陽電池１０と構成を異にする。他の構成は第１実施形態の色素増感型太陽電池１０と同じであるためその説明を省略する。 The configurations of the transparent light receiving plate 31, the transparent electrode film 32, the photoelectric conversion film 33, the counter plate 34, the counter electrode film 35, the insulating material 36, and the charge transport material 37 are the transparent light reception of the dye-sensitized solar cell 10 of the first embodiment. Although it is basically the same as the plate 11, the transparent electrode film 12, the photoelectric conversion film 13, the counter plate 14, the counter electrode film 15, the insulating material 16 and the charge transport material 17,
(1) The terminal portion E1 is provided in place of the terminal portion 15c, and the groove 14c is excluded from the counter plate 14, specifically, the counter electrode film 35 from the lower surface to a predetermined position of the bottom surface portion 34a of the counter plate 34. The hole 34c is formed to fill the hole 34c with a highly conductive metal, for example, nickel, copper, etc. to form the terminal portion E1 (however, the terminal portion E1 touches the charge transport material 37). Select a metal that does not cause corrosion)
(2) The size of the transparent electrode film 32 is reduced so that the outer peripheral surface thereof is not exposed to the outside. (3) A hole 31 a extending from the upper surface to the transparent electrode film 33 is formed at a predetermined position of the transparent light receiving plate 31. The hole 31a is filled with a highly conductive metal such as nickel or copper to constitute the terminal portion E2 (however, when the terminal portion E2 touches the charge transport material 37, corrosion occurs. Choose no metal)
(4) The thickness of the insulating material 36 is increased by the thickness of the transparent electrode film 32, the upper surface thereof is brought into contact with the transparent light receiving plate 31, and the inner surface thereof is brought into contact with the outer peripheral surface of the transparent electrode film 32. The configuration is different from that of the dye-sensitized solar cell 10 of one embodiment. Since other configurations are the same as those of the dye-sensitized solar cell 10 of the first embodiment, description thereof is omitted.

前記の色素増感型太陽電池３０にあっては、端子部Ｅ２の露出外面と端子部Ｅ１の露出外面が色素増感型太陽電池３０の出力端子として利用される。   In the dye-sensitized solar cell 30, the exposed outer surface of the terminal portion E2 and the exposed outer surface of the terminal portion E1 are used as output terminals of the dye-sensitized solar cell 30.

前記の色素増感型太陽電池３０にあっては、透明電極膜３２のサイズを小さくしてその外周面が絶縁材３６の内面に接触するようにしてあるので、絶縁材３６を対向板３４の各側面部３４ｂ及び対向電極膜３５の各反射部３５ｂの上面に形成しておけば、対向板３４に対する透明電極膜３２の位置決めを絶縁材３６を利用して簡単に行うことができる。他の作用効果は第１実施形態の色素増感型太陽電池１０で得られる作用効果と同じである。   In the dye-sensitized solar cell 30, the transparent electrode film 32 is reduced in size so that the outer peripheral surface is in contact with the inner surface of the insulating material 36. If the transparent electrode film 32 is formed on the upper surfaces of the side surface parts 34 b and the reflection parts 35 b of the counter electrode film 35, the transparent electrode film 32 can be easily positioned with respect to the counter plate 34 using the insulating material 36. Other functions and effects are the same as those obtained in the dye-sensitized solar cell 10 of the first embodiment.

因みに、前記（２）及び（４）の構成改良に依る前記効果はこれと同等の構成改良を第２〜第４実施形態の色素増感型太陽電池１０’，２０，２０’に施すことにより該色素増感型太陽電池１０’，２０，２０’でも同様に得ることができる。   Incidentally, the above-mentioned effects due to the configuration improvements of (2) and (4) are obtained by applying the same configuration improvement to the dye-sensitized solar cells 10 ′, 20, 20 ′ of the second to fourth embodiments. The dye-sensitized solar cells 10 ′, 20, and 20 ′ can be similarly obtained.

［第６実施形態］
図８は本発明（色素増感型太陽電池）の第６実施形態を示す、色素増感型太陽電池の縦断面図である。 [Sixth Embodiment]
FIG. 8 is a longitudinal sectional view of a dye-sensitized solar cell, showing a sixth embodiment of the present invention (dye-sensitized solar cell).

この色素増感型太陽電池４０は、透明受光板４１と、透明電極膜４２と、光電変換膜４３と、対向板４４と、対向電極膜４５と、絶縁材４６と、電荷輸送材４７とを備えている。   The dye-sensitized solar cell 40 includes a transparent light receiving plate 41, a transparent electrode film 42, a photoelectric conversion film 43, a counter plate 44, a counter electrode film 45, an insulating material 46, and a charge transport material 47. I have.

透明受光板４１，透明電極膜４２，光電変換膜４３，対向板４４，対向電極膜４５，絶縁材４６及び電荷輸送材４７の構成は第１実施形態の色素増感型太陽電池１０の透明受光板１１，透明電極膜１２，光電変換膜１３，対向板１４，対向電極膜１５，絶縁材１６及び電荷輸送材１７と基本的に同じであるが、
（１）端子部１５ｃの代わりと成る端子部Ｅ１を設けて対向板１４から溝１４ｃを排除した点、具体的には、対向板４４の底面部４４ａの所定位置にその下面から対向電極膜４５に至る孔４４ｃを形成して、該孔４４ｃ内に高導電性の金属、例えばニッケル，銅等を充填して端子部Ｅ１を構成した点（但し、端子部Ｅ１が電荷輸送材４７に触れるような場合には腐食を生じない金属を選択する）
（２）透明電極膜４２のサイズを小さくしてその外周面が外部に露出しないようにした点
（３）透明受光板４１の所定位置にその上面から透明電極膜４３に至る孔４１ａを形成して、該孔４１ａ内に高導電性の金属、例えばニッケル，銅等を充填して端子部Ｅ２を構成した点（但し、端子部Ｅ２が電荷輸送材４７に触れるような場合には腐食を生じない金属を選択する）
（４）絶縁材４６の厚みを透明電極膜４２の厚み分だけ増加させてその上面を透明受光板４１に接触させ、且つ、その内面を透明電極膜４２の外周面に接触させた点
（５）対向板４４の各側面部４４ｂの肉厚を増加し、絶縁材４６の嵌め込みを可能した段差部４４ｂ２と透明受光板４１の外周面に接触する延長部４４ｂ３を設けた点
で第１実施形態の色素増感型太陽電池１０と構成を異にする。他の構成は第１実施形態の色素増感型太陽電池１０と同じであるためその説明を省略する。 The configurations of the transparent light receiving plate 41, the transparent electrode film 42, the photoelectric conversion film 43, the counter plate 44, the counter electrode film 45, the insulating material 46, and the charge transport material 47 are the transparent light reception of the dye-sensitized solar cell 10 of the first embodiment. Although it is basically the same as the plate 11, the transparent electrode film 12, the photoelectric conversion film 13, the counter plate 14, the counter electrode film 15, the insulating material 16 and the charge transport material 17,
(1) The terminal portion E1 is provided in place of the terminal portion 15c, and the groove 14c is excluded from the counter plate 14, specifically, the counter electrode film 45 from the lower surface to a predetermined position of the bottom surface portion 44a of the counter plate 44. The hole 44c is formed, and the hole 44c is filled with a highly conductive metal such as nickel, copper, etc. to form the terminal portion E1 (however, the terminal portion E1 touches the charge transport material 47). Select a metal that does not cause corrosion)
(2) The size of the transparent electrode film 42 is reduced so that the outer peripheral surface thereof is not exposed to the outside. (3) A hole 41 a extending from the upper surface to the transparent electrode film 43 is formed at a predetermined position of the transparent light receiving plate 41. The hole 41a is filled with a highly conductive metal such as nickel or copper to constitute the terminal portion E2. (However, if the terminal portion E2 touches the charge transport material 47, corrosion occurs. Choose no metal)
(4) The thickness of the insulating material 46 is increased by the thickness of the transparent electrode film 42, the upper surface thereof is brought into contact with the transparent light receiving plate 41, and the inner surface thereof is brought into contact with the outer peripheral surface of the transparent electrode film 42 (5 The first embodiment in that the thickness of each side surface portion 44b of the opposing plate 44 is increased, and a step portion 44b2 capable of fitting the insulating material 46 and an extension portion 44b3 contacting the outer peripheral surface of the transparent light receiving plate 41 are provided. The structure is different from that of the dye-sensitized solar cell 10. Since other configurations are the same as those of the dye-sensitized solar cell 10 of the first embodiment, description thereof is omitted.

前記の色素増感型太陽電池４０にあっては、端子部Ｅ２の露出外面と端子部Ｅ１の露出外面が色素増感型太陽電池４０の出力端子として利用される。   In the dye-sensitized solar cell 40, the exposed outer surface of the terminal portion E2 and the exposed outer surface of the terminal portion E1 are used as output terminals of the dye-sensitized solar cell 40.

前記の色素増感型太陽電池４０にあっては、透明電極膜４２のサイズを小さくしてその外周面が絶縁材４６の内面に接触するようにすると共に絶縁材４６の嵌め込みを可能した段差部４４ｂ２と透明受光板４１の外周面に接触する延長部４４ｂ３を対向板４４の各側面部４４ｂに設けてあるので、対向板４４に対する透明電極膜４２の位置決めを絶縁材４６を利用して簡単に行うことができると共に対向板４４に対する透明受光板４１の位置決めを延長部４４ｂ３を利用して簡単に行うことができる。他の作用効果は第１実施形態の色素増感型太陽電池１０で得られる作用効果と同じである。   In the dye-sensitized solar cell 40 described above, the size of the transparent electrode film 42 is reduced so that the outer peripheral surface thereof is in contact with the inner surface of the insulating material 46 and the stepped portion in which the insulating material 46 can be fitted. 44b2 and the extended portions 44b3 that contact the outer peripheral surface of the transparent light receiving plate 41 are provided on the side surface portions 44b of the counter plate 44, so that the transparent electrode film 42 can be easily positioned with respect to the counter plate 44 using the insulating material 46. In addition, the positioning of the transparent light receiving plate 41 with respect to the counter plate 44 can be easily performed using the extension 44b3. Other functions and effects are the same as those obtained in the dye-sensitized solar cell 10 of the first embodiment.

因みに、前記（２），（４）及び（５）の構成改良に依る前記効果はこれと同等の構成改良を第２〜第４実施形態の色素増感型太陽電池１０’，２０，２０’に施すことにより該色素増感型太陽電池１０’，２０，２０’でも同様に得ることができる。   Incidentally, the effects obtained by the structural improvements of (2), (4), and (5) are the same as the structural improvements of the dye-sensitized solar cells 10 ′, 20, and 20 ′ of the second to fourth embodiments. In the same manner, the dye-sensitized solar cells 10 ', 20, and 20' can be obtained in the same manner.

［第７実施形態］
図９は本発明（色素増感型太陽電池）の第７実施形態を示す、色素増感型太陽電池の縦断面図である。 [Seventh Embodiment]
FIG. 9 is a longitudinal sectional view of a dye-sensitized solar cell, showing a seventh embodiment of the present invention (dye-sensitized solar cell).

この色素増感型太陽電池５０は、透明受光板５１と、透明電極膜５２と、光電変換膜５３と、対向板５４と、対向電極膜５５と、絶縁材５６と、電荷輸送材５７とを備えている。   The dye-sensitized solar cell 50 includes a transparent light receiving plate 51, a transparent electrode film 52, a photoelectric conversion film 53, a counter plate 54, a counter electrode film 55, an insulating material 56, and a charge transport material 57. I have.

透明受光板５１，透明電極膜５２，光電変換膜５３，対向板５４，対向電極膜５５，絶縁材５６及び電荷輸送材５７の構成は第１実施形態の色素増感型太陽電池１０の透明受光板１１，透明電極膜１２，光電変換膜１３，対向板１４，対向電極膜１５，絶縁材１６及び電荷輸送材１７と基本的に同じであるが、
（１）端子部１５ｃの代わりと成る端子部Ｅ１を設けて対向板１４から溝１４ｃを排除した点、具体的には、対向板５４の底面部５４ａの所定位置にその下面から対向電極膜５５に至る孔５４ｃを形成して、該孔５４ｃ内に高導電性の金属、例えばニッケル，銅等を充填して端子部Ｅ１を構成した点（但し、端子部Ｅ１が電荷輸送材５７に触れるような場合には腐食を生じない金属を選択する）
（２）透明電極膜５２のサイズを小さくしてその外周面が外部に露出しないようにした点
（３）透明受光板５１の所定位置にその上面から透明電極膜５３に至る孔５１ａを形成して、該孔５１ａ内に高導電性の金属、例えばニッケル，銅等を充填して端子部Ｅ２を構成した点
（４）絶縁材５６の厚みを透明電極膜５２の厚み分だけ増加させてその上面を透明受光板５１に接触させ、且つ、その内面を透明電極膜５２の外周面に接触させた点
（５）対向板５４の各側面部５４ｂの肉厚を増加し、絶縁材５６の嵌め込みを可能した段差部５４ｂ２と該段差部５４ｂ２の上側の延長部５４ｂ３の上面に面取り部５４ｂ４を設けた点（但し、端子部Ｅ２が電荷輸送材５７に触れるような場合には腐食を生じない金属を選択する）
（６）透明受光板５１の外周縁に対向板５４の面取り部５４ｂ４に嵌り込む面取り部５１ｂを設けた点
で第１実施形態の色素増感型太陽電池１０と構成を異にする。他の構成は第１実施形態の色素増感型太陽電池１０と同じであるためその説明を省略する。 The configurations of the transparent light receiving plate 51, the transparent electrode film 52, the photoelectric conversion film 53, the counter plate 54, the counter electrode film 55, the insulating material 56, and the charge transport material 57 are the transparent light reception of the dye-sensitized solar cell 10 of the first embodiment. Although it is basically the same as the plate 11, the transparent electrode film 12, the photoelectric conversion film 13, the counter plate 14, the counter electrode film 15, the insulating material 16 and the charge transport material 17,
(1) The terminal portion E1 serving as a substitute for the terminal portion 15c is provided, and the groove 14c is excluded from the counter plate 14, specifically, the counter electrode film 55 from the lower surface to a predetermined position of the bottom surface portion 54a of the counter plate 54. A point where the terminal portion E1 is formed by filling the hole 54c with a highly conductive metal such as nickel or copper (provided that the terminal portion E1 touches the charge transport material 57). Select a metal that does not cause corrosion)
(2) The size of the transparent electrode film 52 is reduced so that the outer peripheral surface thereof is not exposed to the outside. (3) A hole 51 a extending from the upper surface to the transparent electrode film 53 is formed at a predetermined position of the transparent light receiving plate 51. (4) The thickness of the insulating material 56 is increased by the thickness of the transparent electrode film 52 by filling the hole 51a with a highly conductive metal such as nickel, copper, etc. to constitute the terminal portion E2. The point that the upper surface is in contact with the transparent light receiving plate 51 and the inner surface is in contact with the outer peripheral surface of the transparent electrode film 52. (5) The thickness of each side surface portion 54b of the opposing plate 54 is increased, and the insulating material 56 is fitted. A chamfered portion 54b4 is provided on the upper surface of the stepped portion 54b2 and the extended portion 54b3 above the stepped portion 54b2 (provided that the metal does not cause corrosion when the terminal portion E2 touches the charge transport material 57). Select
(6) The configuration is different from that of the dye-sensitized solar cell 10 of the first embodiment in that a chamfered portion 51 b that fits into the chamfered portion 54 b 4 of the counter plate 54 is provided on the outer peripheral edge of the transparent light receiving plate 51. Since other configurations are the same as those of the dye-sensitized solar cell 10 of the first embodiment, description thereof is omitted.

前記の色素増感型太陽電池５０にあっては、端子部Ｅ２の露出外面と端子部Ｅ１の露出外面が色素増感型太陽電池５０の出力端子として利用される。   In the dye-sensitized solar cell 50, the exposed outer surface of the terminal portion E2 and the exposed outer surface of the terminal portion E1 are used as output terminals of the dye-sensitized solar cell 50.

前記の色素増感型太陽電池５０にあっては、透明電極膜５２のサイズを小さくしてその外周面が絶縁材５６の内面に接触するようにすると共に絶縁材５６の嵌め込みを可能した段差部５４ｂ２と透明受光板５１の面取り部５１ｂの嵌め込みを可能とした面取り部５４ｂ４を対向板５４の各側面部５４ｂに設けてあるので、対向板５４に対する透明電極膜５２の位置決めを絶縁材５６を利用して簡単に行うことができると共に対向板５４に対する透明受光板５１の位置決めを面取り部５４ｂ４，５１ｂを利用して簡単に行うことができる。他の作用効果は第１実施形態の色素増感型太陽電池１０で得られる作用効果と同じである。   In the dye-sensitized solar cell 50 described above, the size of the transparent electrode film 52 is reduced so that the outer peripheral surface thereof is in contact with the inner surface of the insulating material 56 and the stepped portion in which the insulating material 56 can be fitted. 54b2 and the chamfered portions 54b4 that allow the chamfered portions 51b of the transparent light receiving plate 51 to be fitted are provided on the side surface portions 54b of the opposing plate 54. Therefore, the insulating material 56 is used to position the transparent electrode film 52 relative to the opposing plate 54 In addition, the transparent light receiving plate 51 can be easily positioned with respect to the counter plate 54 by using the chamfered portions 54b4 and 51b. Other functions and effects are the same as those obtained in the dye-sensitized solar cell 10 of the first embodiment.

因みに、前記（２），（４），（５）及び（６）の構成改良に依る前記効果はこれと同等の構成改良を第２〜第４実施形態の色素増感型太陽電池１０’，２０，２０’に施すことにより該色素増感型太陽電池１０’，２０，２０’でも同様に得ることができる。   Incidentally, the above-described effects due to the configuration improvements of (2), (4), (5) and (6) are equivalent to the configuration improvements of the dye-sensitized solar cells 10 ′, By applying to 20 and 20 ′, the dye-sensitized solar cell 10 ′, 20, and 20 ′ can be obtained in the same manner.

［他の実施形態］
前述の第１，第２実施形態の色素増感型太陽電池１０，１０’では反射部１５ｂ，１８として透明電極膜１２に対して鋭角を成す傾きを有するものを示し、前述の第３，第４実施形態の色素増感型太陽電池２０，２０’では反射部２５ｂ，２８として透明電極膜２２に対して直角を成すものを示したが、第１，第２実施形態の色素増感型太陽電池１０，１０’における反射部１５ｂ，１８の一部を第３，第４実施形態の色素増感型太陽電池２０，２０’の反射部２５ｂ，２８のように透明電極膜１２に対して直角を成すものとした構造、或いは、第３，第４実施形態の色素増感型太陽電池２０，２０’における反射部２５ｂ，２８の一部を第１，第２実施形態の色素増感型太陽電池１０，１０’のように透明電極膜１２に対して鋭角を成す傾きを有するものとした構造を採用しても、第１〜第４実施形態の色素増感型太陽電池１０，１０’，２０，２０’と同様の作用効果を得ることができる。 [Other Embodiments]
In the dye-sensitized solar cells 10 and 10 ′ of the first and second embodiments described above, the reflecting portions 15 b and 18 have an inclination that forms an acute angle with respect to the transparent electrode film 12. In the dye-sensitized solar cells 20 and 20 ′ according to the fourth embodiment, the reflecting portions 25b and 28 are perpendicular to the transparent electrode film 22, but the dye-sensitized solar cells according to the first and second embodiments. A part of the reflection portions 15b and 18 in the batteries 10 and 10 'is perpendicular to the transparent electrode film 12 like the reflection portions 25b and 28 of the dye-sensitized solar cells 20 and 20' of the third and fourth embodiments. Or a part of the reflecting portions 25b and 28 in the dye-sensitized solar cells 20 and 20 ′ of the third and fourth embodiments as the dye-sensitized solar of the first and second embodiments. Like the batteries 10 and 10 ', it has an inclination that forms an acute angle with respect to the transparent electrode film 12. It is adopted a structure with objects, the first to fourth embodiments of the dye-sensitized solar cell 10, 10 ', 20, 20' can provide the same effects as.

従前の色素増感型太陽電池の縦断面図である。It is a longitudinal cross-sectional view of a conventional dye-sensitized solar cell. 本発明の第１実施形態を示す、色素増感型太陽電池の縦断面図である。It is a longitudinal cross-sectional view of the dye-sensitized solar cell which shows 1st Embodiment of this invention. 図２に示した対向基板及び対向電極膜の上面図である。FIG. 3 is a top view of the counter substrate and the counter electrode film shown in FIG. 2. 本発明の第２実施形態を示す、色素増感型太陽電池の縦断面図である。It is a longitudinal cross-sectional view of the dye-sensitized solar cell which shows 2nd Embodiment of this invention. 本発明の第３実施形態を示す、色素増感型太陽電池の縦断面図である。It is a longitudinal cross-sectional view of the dye-sensitized solar cell which shows 3rd Embodiment of this invention. 本発明の第４実施形態を示す、色素増感型太陽電池の縦断面図である。It is a longitudinal cross-sectional view of the dye-sensitized solar cell which shows 4th Embodiment of this invention. 本発明の第５実施形態を示す、色素増感型太陽電池の縦断面図である。It is a longitudinal cross-sectional view of the dye-sensitized solar cell which shows 5th Embodiment of this invention. 本発明の第６実施形態を示す、色素増感型太陽電池の縦断面図である。It is a longitudinal cross-sectional view of the dye-sensitized solar cell which shows 6th Embodiment of this invention. 本発明の第７実施形態を示す、色素増感型太陽電池の縦断面図である。It is a longitudinal cross-sectional view of the dye-sensitized solar cell which shows 7th Embodiment of this invention.

符号の説明Explanation of symbols

１０，１０’，２０，２０’，３０，４０，５０…色素増感型太陽電池、１１，２１，３１，４１，５１…透明受光板、１２，２２，３２，４２，５２…透明電極膜、１３，２３，３３，４３，５３…光電変換膜、１４，２４，３４，４４，５４…対向板、１５，１５’，２５，２５’，３５，４５，５５…対向電極膜、１５ｂ，２５ｂ，３５ｂ，４５ｂ，５５ｂ…反射部、１６，２６，３６，４６，５６…絶縁材、１７，２７，３７，４７，５７…電荷輸送材、１８，２８…反射部。   10, 10 ', 20, 20', 30, 40, 50 ... Dye-sensitized solar cell, 11, 21, 31, 41, 51 ... Transparent light receiving plate, 12, 22, 32, 42, 52 ... Transparent electrode film , 13, 23, 33, 43, 53 ... photoelectric conversion film, 14, 24, 34, 44, 54 ... counter plate, 15, 15 ', 25, 25', 35, 45, 55 ... counter electrode film, 15b, 25b, 35b, 45b, 55b ... reflective part, 16, 26, 36, 46, 56 ... insulating material, 17, 27, 37, 47, 57 ... charge transport material, 18, 28 ... reflective part.

Claims (5)

透明受光板と透明電極膜と光電変換膜と対向板と対向電極膜と電荷輸送材とを備えた色素増感型太陽電池であって、
光電変換膜の外側には、透明受光板上に設定された有効受光領域の外縁部分に照射され、且つ、光電変換膜に直接的に導かれない白色光を反射作用により光電変換膜に導く反射部が配されている、
ことを特徴とする色素増感型太陽電池。 A dye-sensitized solar cell comprising a transparent light receiving plate, a transparent electrode film, a photoelectric conversion film, a counter plate, a counter electrode film, and a charge transport material,
A reflection that irradiates the outer edge of the effective light receiving area set on the transparent light receiving plate on the outer side of the photoelectric conversion film and guides white light that is not directly guided to the photoelectric conversion film to the photoelectric conversion film by a reflection action. Part is arranged,
A dye-sensitized solar cell characterized by the above. 反射部は対向電極膜の一部によって構成されている、
ことを特徴とする請求項１に記載の色素増感型太陽電池。 The reflection part is constituted by a part of the counter electrode film.
The dye-sensitized solar cell according to claim 1. 反射部は対向電極膜と非接触の別パーツによって構成されている、
ことを特徴とする請求項１に記載の色素増感型太陽電池。 The reflection part is composed of separate parts that are not in contact with the counter electrode film.
The dye-sensitized solar cell according to claim 1. 反射部は透明電極膜に対して鋭角を成す傾きを有する、
ことを特徴とする請求項１〜３の何れか１項に記載の色素増感型太陽電池。 The reflecting portion has an inclination that forms an acute angle with respect to the transparent electrode film.
The dye-sensitized solar cell according to any one of claims 1 to 3, wherein: 反射部は透明電極膜に対して直角を成している、
ことを特徴とする請求項１〜３の何れか１項に記載の色素増感型太陽電池。 The reflection part is perpendicular to the transparent electrode film,
The dye-sensitized solar cell according to any one of claims 1 to 3, wherein:
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Publication number Priority date Publication date Assignee Title
WO2022019521A1 (en) * 2020-07-22 2022-01-27 주식회사 랩엔텍 Method and apparatus for increasing photovoltaic generation amount by using multiple solar cell units

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022019521A1 (en) * 2020-07-22 2022-01-27 주식회사 랩엔텍 Method and apparatus for increasing photovoltaic generation amount by using multiple solar cell units
KR20220011871A (en) * 2020-07-22 2022-02-03 주식회사 랩엔텍 Method and device for increasing solar power generation using multiple solar cell units
KR102407525B1 (en) 2020-07-22 2022-06-10 주식회사 랩엔텍 Method and device for increasing solar power generation using multiple solar cell units

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