JP2009021123A - 光電変換素子およびその製造方法 - Google Patents
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- 239000011521 glass Substances 0.000 description 7
- 239000011630 iodine Substances 0.000 description 7
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- 238000007789 sealing Methods 0.000 description 7
- 239000007788 liquid Substances 0.000 description 6
- 239000011347 resin Substances 0.000 description 6
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- 239000002184 metal Substances 0.000 description 5
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- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- URLJKFSTXLNXLG-UHFFFAOYSA-N niobium(5+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[Nb+5].[Nb+5] URLJKFSTXLNXLG-UHFFFAOYSA-N 0.000 description 1
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- PYWVYCXTNDRMGF-UHFFFAOYSA-N rhodamine B Chemical compound [Cl-].C=12C=CC(=[N+](CC)CC)C=C2OC2=CC(N(CC)CC)=CC=C2C=1C1=CC=CC=C1C(O)=O PYWVYCXTNDRMGF-UHFFFAOYSA-N 0.000 description 1
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- 229910052718 tin Inorganic materials 0.000 description 1
- ZNOKGRXACCSDPY-UHFFFAOYSA-N tungsten trioxide Chemical compound O=[W](=O)=O ZNOKGRXACCSDPY-UHFFFAOYSA-N 0.000 description 1
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Abstract
提供する。
【解決手段】負極となる電極と、正極となる対極とが対向状に配置されてなる光電変換素子である。前記電極は、透明基板(1)の片面上に透明導電膜(2)を介して、光増感色素で染色された光触媒膜(8)を形成することで構成したものである。前記対極は、対極用基板(4)の片面上に、同面を覆う導電性接着剤層(7)を介して、同基板表面に対して実質上垂直に配向したブラシ状カーボンナノチューブ膜(5)を設けることで構成したものである。
【選択図】 図1
Description
負極となる電極と、正極となる対極とが対向状に配置されてなる光電変換素子において、
前記電極は、透明基板の片面上に透明導電膜を介して、光増感色素で染色された光触媒膜を形成することで構成したものであり、
前記対極は、対極用基板の片面上に、同面を覆う導電性接着剤層を介して、同基板表面に対して実質上垂直に配向したブラシ状カーボンナノチューブを設けることで構成したものである
ことを特徴とするものである。
負極となる電極と、正極となる対極を対向状に配向してなる光電変換素子を製造するに当たり、
透明基板の片面上に透明導電膜を介して、光増感色素で染色された光触媒膜を形成することで、前記電極を構成し、
対極用基板の片面に、導電性接着剤層を同面を覆うように形成し、同接着剤層に別途形成のブラシ状カーボンナノチューブを基板表面に対して実質上垂直に配向するように転写することで、前記対極を構成する
ことを特徴とする方法である。
図1において、ガラスまたはプラスチック製の電極用の透明基板(1) の片面に透明導電膜(2) を形成し、同導電膜(2) 上に酸化チタン粒子(3)からなる光触媒膜(8)を厚さ10〜15μmで形成した。光触媒膜(8) は、平均粒径20〜30nmの酸化チタン粒子を含むペーストを透明基板(1) に塗布し、焼結して形成したものである。
図2において、表面をITO等の透明導電膜(18)で覆われているガラスまたはプラスチック製の透明基板(1)に対し、この透明導電膜上にPEDOTまたはPEDOT/PSS等の導電性高分子の透明導電膜(2)を形成した。別途、熱化学蒸着、プラズマ化学蒸着などの方法で基材に実質上垂直に形成したカーボンナノチューブを同透明導電膜(2)に実質上垂直に配向するように転写した。カーボンナノチューブ膜(15)は約8μm厚であった。
図3において、ガラスまたはプラスチック製の電極用の透明基板(1) の片面に透明導電膜(2) を形成した。
図6において、表面をITOなどの透明導電膜(2)で覆われたガラス基板またはプラスチック製の電極用の透明基板(1)を、高電圧電源(14)が接続された金属板製の電極(12)上に配置し、この基板(1)に対向するように金属板製の対向電極(13)を配置した。これらの電極(12)(13)間に負高電圧を印加し、静電場を形成した。なお、電極(12)側が負高圧、対向電極(13)側が接地となるように両者が接続されている。
(2)(18) 透明導電膜
(3) 酸化チタン粒子
(4) 対極用基板
(5) (15) カーボンナノチューブ膜
(6) 封止片
(7) 導電性接着剤層
(8) 光触媒膜
(11) 対極
(12)(13) 電極
(14) 高電圧電源
(16) ドクターブレード
(17) 分散液
(25) カーボンナノチューブ粒子
Claims (9)
- 負極となる電極と、正極となる対極とが対向状に配置されてなる光電変換素子において、
前記電極は、透明基板の片面上に透明導電膜を介して、光増感色素で染色された光触媒膜を形成することで構成したものであり、
前記対極は、対極用基板の片面上に、同面を覆う導電性接着剤層を介して、同基板表面に対して実質上垂直に配向したブラシ状カーボンナノチューブを設けることで構成したものである
ことを特徴とする、光電変換素子。 - 前記電極は、透明基板上の透明導電膜に基板面に対して実質上垂直に設けられたブラシ状カーボンナノチューブに光触媒粒子を担持させ、同粒子を光増感色素で染色することで構成したものであることを特徴とする、請求項1記載の光電変換素子。
- 前記電極は、透明基板上の透明導電膜にカーボンナノチューブ粒子と光触媒粒子の混合物からなる光触媒膜を形成し、同触媒膜を光増感色素で染色することで構成したものであることを特徴とする、請求項1記載の光電変換素子。
- 前記電極は、前記対極のブラシ状カーボンナノチューブと接触していることを特徴とする、請求項3記載の光電変換素子。
- 負極となる電極と、正極となる対極を対向状に配向してなる光電変換素子を製造するに当たり、
透明基板の片面上に透明導電膜を介して、光増感色素で染色された光触媒膜を形成することで、前記電極を構成し、
対極用基板の片面に、導電性接着剤層を同面を覆うように形成し、同接着剤層に別途形成のブラシ状カーボンナノチューブを基板表面に対して実質上垂直に配向するように転写することで、前記対極を構成する
ことを特徴とする、光電変換素子の製造方法。 - 透明基板の片面上に透明導電膜を形成し、同導電膜に別途形成のブラシ状カーボンナノチューブを基板面に対して実質上垂直に配向するように転写し、同カーボンナノチューブに光触媒粒子を担持させ、同粒子を光増感色素で染色することで、前記電極を構成することを特徴とする、請求項5記載の光電変換素子の製造方法。
- 透明基板上に透明導電膜を形成し、同導電膜にカーボンナノチューブ粒子と光触媒粒子の混合物からなる光触媒膜を形成し、同触媒膜を光増感色素で染色することで、前記電極を構成することを特徴とする、請求項5記載の光電変換素子の製造方法。
- 前記透明導電膜にカーボンナノチューブ粒子と光触媒粒子の混合物からなる光触媒膜を形成するに当たり、前記混合物を含むペーストを透明導電膜上に塗布し、乾燥させることを特徴とする、請求項7記載の光電変換素子の製造方法。
- 前記ペーストを透明導電膜上に塗布するに当たり、透明導電膜とこれに対向する電極との間に静電場を形成した状態で塗布を行うことを特徴とする、請求項8記載の光電変換素子の製造方法。
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US12/452,574 US20100132786A1 (en) | 2007-07-12 | 2008-07-11 | Photoelectric conversion element and method of producing the same |
CN200880024464.9A CN101689689B (zh) | 2007-07-12 | 2008-07-11 | 光电转换元件及其制造方法 |
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