JP2008053024A - 色素増感型太陽電池 - Google Patents
色素増感型太陽電池 Download PDFInfo
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- JP2008053024A JP2008053024A JP2006227374A JP2006227374A JP2008053024A JP 2008053024 A JP2008053024 A JP 2008053024A JP 2006227374 A JP2006227374 A JP 2006227374A JP 2006227374 A JP2006227374 A JP 2006227374A JP 2008053024 A JP2008053024 A JP 2008053024A
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- film
- dye
- negative electrode
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- sensitized solar
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/542—Dye sensitized solar cells
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Abstract
【解決手段】負電極構造体20と、透明導電性基板を備えた対向電極構造体21とからなり、負電極構造体20は、金属基板25と、金属基板25上に形成された色素30が担持された酸化物半導体層29とを有しており、酸化物半導体層29が形成されている金属基板25の表面には、化成処理皮膜27が形成されている。
【選択図】図1
Description
(1)前記金属基板がアルミニウムまたは鉄製であること、
(2)前記化成処理皮膜の厚みが5〜500nmの範囲にあること、
が好ましい。
図1に示すように、本発明の太陽電池は、全体として20で示す負電極構造体と、全体として21で示す対向電極(正電極)構造体とを備え、これら電極構造体20,21の間に電解質23が配置されたものであり、可視光を対向電極構造体21側から照射して負電極構造体20に入射させることにより発電が行われる。
また、固体電解質としては、ポリピロール、CuIなどが挙げられる。ゲル電解質、固体電解質を使用する場合、低粘度の前駆体を酸化物半導体膜に含浸させ、加熱、紫外線照射、電子線照射などの手段で二次元または三次元の架橋反応を起こさせることにより、ゲル化または固体化することができる。しかしながら、発電効率を考えると電解液を使用することが好ましい。
Cr(OH)2・HCrO4、Al(OH)2・2H2O
を主体としており、促進系では、さらにCrFe(CN)6を膜中に含んでいる。
チタンイソプロポキシドを2mol/Lになるように、有機溶剤ブタノールで希釈したチタンアルコキシド溶液を調整し、これと、二酸化チタン粒子(構成粒子径は、15〜350nmの汎用チタニア粒子)を、二酸化チタン微粒子100重量部当り20重量部の量で含有し、固形分濃度が20%の二酸化チタン微粒子ペーストを調整した。
そして、リン酸クロメート処理(処理層約50nm)されたアルミニウム板(厚み0.3mm)の板上に、上記調整した二酸化チタンのペーストを塗布し、450℃で焼成し、酸化物半導体多孔質膜を形成した。その後、純度99.5%のエタノールに分散させたルテニウム錯体色素[Ru(dcbpy)2(NCS)2]・2H2Oからなる色素溶液中に18時間漬浸させ、負極を得た。
以上のようにして得られた負極を用いて、これと、LiI/I20.5mol/0.05mol)をメトキシプロピオニトリルに溶かしたものに4-tert-butyl
pyridine(ターシャリーブチルピリジン)を添加して作製した電解質を、白金を蒸着したITO/PETフィルムで構成される正極とで挟み込んだ色素増感型太陽電池を作製した。この電池の変換効率を測定したところ、測定面積1cm2では、変換効率:1.65%、FF:0.62、短絡電流密度(JSC):3.34mA/cm2、開放電圧(VOC):0.796Vとなり、高いVOCが得られた。
実施例1と同様に二酸化チタン微粒子ペーストを調整した。そして、表面処理の施されていないアルミニウム板(厚み0.3mm)の板上に、上記調整した二酸化チタンのペーストを塗布し、450℃で焼成し、酸化物半導体多孔質膜を形成し、その後実施例と同様に色素増感型太陽電池を作製した。この電池の変換効率を測定したところ、測定面積1cm2では、変換効率:1.34%、FF:0.55、JSC:3.18mA/cm2、VOC:0.766Vとなり、実施例に比してVOCが低くなり、それに伴って変換効率も低くなった。
21:対向電極(正電極)構造体
23:電解質
25:金属基板
27:改正処理皮膜
29:酸化物半導体多孔質層
30:色素
35:緻密な酸化物半導体層
37:透明基板
39:透明導電膜
Claims (3)
- 負電極構造体と、透明導電性基板を備えた対向電極構造体とからなり、前記負電極構造体は、金属基板と、該金属基板上に形成された色素が担持された酸化物半導体層とを有しており、該酸化物半導体層が形成されている該金属基板の表面には、化成処理皮膜が形成されていることを特徴とする色素増感型太陽電池。
- 前記金属基板がアルミニウムまたは鉄製である請求項1に記載の色素増感型太陽電池。
- 前記化成処理皮膜の厚みが5〜500nmの範囲にある請求項1または2に記載の色素増感型太陽電池。
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PCT/JP2007/066957 WO2008023848A1 (fr) | 2006-08-24 | 2007-08-24 | Cellule solaire sensible aux colorants |
US12/438,420 US20100229949A1 (en) | 2006-08-24 | 2007-08-24 | Dye-sensitized solar cell |
EP07806434.2A EP2190056B1 (en) | 2006-08-24 | 2007-08-24 | Dye-sensitized solar cell |
CN2007800396191A CN101553951B (zh) | 2006-08-24 | 2007-08-24 | 色素敏化型太阳能电池 |
KR1020097005571A KR101369961B1 (ko) | 2006-08-24 | 2007-08-24 | 색소 증감형 태양 전지 |
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RU2516242C2 (ru) * | 2008-04-18 | 2014-05-20 | Нлаб Солар Аб | Устройство преобразования солнечной энергии в электрическую |
JP2014116210A (ja) * | 2012-12-10 | 2014-06-26 | International Frontier Technology Laboratory Inc | 2酸化ケイ素ソーラーセル |
JP2014130766A (ja) * | 2012-12-28 | 2014-07-10 | International Frontier Technology Laboratory Inc | 色素増感タンデム2酸化ケイ素ソーラーセル |
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JP2006156214A (ja) * | 2004-11-30 | 2006-06-15 | Mitsubishi Paper Mills Ltd | 色素増感型太陽電池 |
Cited By (3)
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RU2516242C2 (ru) * | 2008-04-18 | 2014-05-20 | Нлаб Солар Аб | Устройство преобразования солнечной энергии в электрическую |
JP2014116210A (ja) * | 2012-12-10 | 2014-06-26 | International Frontier Technology Laboratory Inc | 2酸化ケイ素ソーラーセル |
JP2014130766A (ja) * | 2012-12-28 | 2014-07-10 | International Frontier Technology Laboratory Inc | 色素増感タンデム2酸化ケイ素ソーラーセル |
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