JP7506744B2 - 光起電力装置用の作用電極、および前記作用電極を含む光起電力装置 - Google Patents
光起電力装置用の作用電極、および前記作用電極を含む光起電力装置 Download PDFInfo
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Classifications
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- 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
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
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- H10K30/80—Constructional details
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- H10K30/82—Transparent electrodes, e.g. indium tin oxide [ITO] electrodes
- H10K30/83—Transparent electrodes, e.g. indium tin oxide [ITO] electrodes comprising arrangements for extracting the current from the cell, e.g. metal finger grid systems to reduce the serial resistance of transparent electrodes
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- H—ELECTRICITY
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- H01G9/20—Light-sensitive devices
- H01G9/2027—Light-sensitive devices comprising an oxide semiconductor electrode
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Description
本発明は、光起電力装置に使用される光吸収層を含む作用電極に関する。また、本発明は、前記作用電極を含む光起電力装置に関する。
太陽光発電装置は、光起電力効果を示す半導体材料を使用して光を電気に変換する装置である。
本発明の目的は、上述の問題のいくつかを少なくとも部分的に解決し、光起電力装置のための改良された作用電極、および前記作用電極を含む改良された光起電力装置を提供することである。
次に、本発明の異なる実施形態の説明と添付の図を参照することにより、本発明をより詳細に説明する。
図2は、光吸収層および反射層を含む作用電極の他の一例を示す。
図3は、図1に示す作用電極を含む光起電力装置の一例を示す。
図4は、図3に示す光起電力装置の光吸収層および導電層の部分拡大図を示す。
図5は、図1に示す作用電極を含む光起電力装置の他の一例を示す。
図6は、図2に示す作用電極を含む光起電力装置の一例を示す。
図中の同種の番号は、本明細書全体を通じて同種の要素を示す。
LiI /I2、NaI/I2、KI/I2、PMII/I2,
または、以下のようなコバルト系電解質:
トリス(1,10-フェナントロリン)コバルト ビス(ヘキサフルオロホスフェート)/トリス(1,10-フェナントロリン)コバルト トリス(ヘキサフルオロホスフェート)、または
ビス(6-(1H-ピラゾール-1-イル)-2,2'-ビピリジン)コバルト ビス(ヘキサフルオロホスフェート)/ビス(6-(1H-ピラゾール-1-イル)-2,2'-ビピリジン)コバルト トリス(ヘキサフルオロホスフェート)、または
トリス-(2,2'-ビピリジン)コバルト(II)ジ(テトラシアノボレート)/トリス-(2,2'-ビピリジン)コバルト(III)トリ(テトラシアノボレート)、
または、以下のような銅塩基性電解質
ビス-(2,9-ジメチル-1,10-フェナントロリン)銅(I)ビス(トリフルオロメタンスルホニル)イミド/ビス-(2,9-ジメチル-1,10-フェナントロリン)銅(II)ビス(トリフルオロメタンスルホニル)イミド クロライド、または
ビス-(4,4',6,6'-テトラメチル-2,2'-ビピリジン)銅(I)ビス(トリフルオロメタンスルホニル)イミド/ビス-(4,4',6,6'-テトラメチル-2,2'-ビピリジン)銅(II)ビス[ビス(トリフルオロメタンスルホニル)イミド]、または
ビス(1,1-ビス(2-ピリジル)エタン)銅(I)ヘキサフルオロホスフェート/ビス(1,1-ビス(2-ピリジル)エタン)銅(II)ビス(ヘキサフルオロホスフェート)
を含む群またはこれらからなる群から選択されてもよい。
本実施例では、クラスターは、導電層6の上に直接形成される。
第1のステップでは、例えば、色素の粉末の形態の固体色素を、固体色素を溶かす適切な溶媒に溶かすことによって色素溶液を製造する。その結果、溶媒に溶けた色素分子の溶液が形成されている。色素および溶媒は、実施例1と同様とすることができる。
結晶性クラスターは、導電層6の上に直接形成することもできる。
まず、色素溶液に陽イオンを添加して、色素溶液から結晶構造の色素を析出させることでクラスターを製造する。陽イオンによって色素は溶媒に不溶となり、その結果、色素は溶液中に結晶構造の形で析出する。この結晶性クラスターは、沈殿とデカンテーションによって溶液から分離される。結晶性クラスターは、遠心分離後にデカンテーションを行うことによっても、より効率的に溶液から分離することもできる。あるいは、結晶性クラスターは、フィルターを通して濾過することによって、好ましくは真空を用い、フィルターを通して液晶混合物を吸引することによって、溶液から分離することもできる。あるいは、濾過および結晶液体混合物に過圧をかけ、フィルターを通して液体を押圧して結晶をフィルター上に残すことによって、溶液から結晶性クラスターを分離することもできる。
本実施例では、反射層を有する作用電極の製造方法について説明する。
Claims (16)
- 光吸収層(3)と、前記光吸収層(3)と電気的に接触して配置された導電層(6)とを備え、前記光吸収層(3)は、複数の色素分子からなる光吸収性光起電材料を含み、前記光吸収層(3)は、複数のクラスター(7)からなる層によって形成され、各クラスター(7)は複数の色素分子によって形成され、クラスター(7)内の各色素分子は、その隣接する色素分子と結合し、前記光吸収層(3)は、単層のクラスター(7)であり、前記クラスター(7)間に空間(8)が形成され、前記クラスター(7)間の前記空間(8)を満たす導電性媒体(9;42)を含み、
前記光吸収層(3)が、色素分子が表面に堆積または吸着された半導体粒子を含まないことを特徴とする、光起電力装置用の作用電極。 - 前記光吸収層(3)を形成する前記クラスター(7)の少なくとも80%が、1クラスターあたりの分子数が100より多い色素分子を含む、請求項1に記載の作用電極。
- 前記光吸収層(3)を形成する前記クラスター(7)の少なくとも80%が、1クラスターあたりの分子数が1000より多い色素分子を含む、請求項1に記載の作用電極。
- 前記光吸収層(3)を形成する前記クラスター(7)の少なくとも80%が、1クラスターあたりの分子数が10000より多い色素分子を含む、請求項1に記載の作用電極。
- 前記光吸収層(3)の厚さが20nmと2μmとの間である請求項1~4のいずれか一つに記載の作用電極。
- 前記光吸収層を形成する前記クラスター(7)の少なくとも40%が結晶性クラスターであり、異なる材料のカーネルまたは種を使用して前記結晶性クラスターを形成するように前記クラスター(7)内の前記色素分子が配置される、請求項1~5のいずれか一つに記載の作用電極。
- 前記光吸収層を形成する前記クラスター(7)の少なくとも50%が結晶性クラスターであり、異なる材料のカーネルまたは種を使用して前記結晶性クラスターを形成するように前記クラスター(7)内の前記色素分子が配置される、請求項1~5のいずれか一つに記載の作用電極。
- 前記光吸収層を形成する前記クラスター(7)の少なくとも70%が結晶性クラスターであり、異なる材料のカーネルまたは種を使用して前記結晶性クラスターを形成するように前記クラスター(7)内の前記色素分子が配置される、請求項1~5のいずれか一つに記載の作用電極。
- 前記色素分子が、有機色素分子、または有機金属色素分子、または天然色素分子である、請求項1~8のいずれか一つに記載の作用電極。
- 前記光吸収層(3)を形成する前記クラスター(7)は、前記導電層(6)と物理的かつ電気的に接触しており、前記クラスター(7)は、前記導電層(6)に結合している、請求項1~9のいずれか一つに記載の作用電極。
- 前記作用電極は、前記光吸収層(3)および前記導電層(6)の間に配置された反射層(9a)を備え、前記反射層(9a)は、前記光吸収層(3)を形成する前記クラスター(7)および前記導電層(6)と電気的に接触する半導体粒子(10)を含む、請求項1~10のいずれか一つに記載の作用電極。
- 前記反射層(9a)内の前記半導体粒子(10)の少なくとも80%のサイズは、0.1μmより大きい、請求項11に記載の作用電極。
- 前記反射層(9a)内の前記半導体粒子(10)の少なくとも80%のサイズは、0.2μmより大きい、請求項11に記載の作用電極。
- 前記反射層(9a)の厚さが0.1μmと10μmとの間である、請求項11~13のいずれか1つに記載の作用電極。
- 前記反射層(9a)が多孔質であり、前記反射層(9a)の多孔率が40%~70%の間である請求項11に記載の作用電極。
- - 請求項1~15のいずれか一つに記載の前記作用電極、
- 対向電極(24)、および
- 前記対向電極(24)と前記作用電極との間で電荷を移動させるための導電性媒体を備えた光起電力装置。
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JP2015119023A (ja) | 2013-12-18 | 2015-06-25 | コニカミノルタ株式会社 | 光電変換素子およびその製造方法、ならびにそれを用いた太陽電池 |
CN108962612A (zh) | 2018-07-19 | 2018-12-07 | 黑龙江大学 | 一种均苯三甲酸配合物/二氧化钛复合光阳极的制备方法 |
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