JP2005222942A - 光吸収波長帯が拡張された染料感応太陽電池及びその製造方法 - Google Patents
光吸収波長帯が拡張された染料感応太陽電池及びその製造方法 Download PDFInfo
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Abstract
【解決手段】本発明による染料感応太陽電池は、透光性物質からなる第1電極が第2電極と対向配置される。前記第1電極には多孔質膜が形成され、前記多孔質膜には二種類以上の染料物質を含む複合染料が吸着される。そして、前記第1電極と第2電極の間の空間には電解質が充填される。
【選択図】 図1
Description
第1電極として、基板上にITOが形成された第1透明基板を用意する。ITO上に平均粒径約5〜15nmの金属酸化物粒子を混ぜた分散液を、ドクターブレード法を利用して1cm2面積に塗布し、温度450℃で30分間焼成して約3μm厚さの多孔質膜を形成した。
第1電極として、基板上にITOが形成された第1透明基板を用意する。ITO上に平均粒径約5〜15nmの金属酸化物粒子を混ぜた分散液を、ドクターブレード法を利用して1cm2面積に塗布し、温度450℃で30分間、焼成して約3μm厚さの多孔質膜を形成した。
第1電極として、基板上にITOが形成された第1透明基板を用意する。ITO上に平均粒径約5〜15nmの金属酸化物粒子を混ぜた分散液を、ドクターブレード法を利用して1cm2面積に塗布し、温度450℃で30分間、焼成して約3μm厚さの多孔質膜を形成した。
11 第1透明基板
12 導電性フィルム
20 第2電極
21 第2透明基板
22 第1導電性フィルム
23 第2導電性フィルム
30 多孔質膜
40 複合染料
41 第1染料物質
42 第2染料物質
50 電解質
60a 接着剤
60b 接着剤
Claims (15)
- 透光性物質からなる第1電極;
前記第1電極の一方の面に形成される多孔質膜;
前記多孔質膜に吸着され、二種類以上の染料物質を含む複合染料;
前記多孔質膜が形成された前記第1電極の一方の面と対向するように配置される第2電極;及び
前記第1電極と第2電極の間の空間に充填される電解質
を含む染料感応太陽電池。 - 前記複合染料が、Ru(2,2’:6’,2”−テルピリジン−4,4’,4”−トリカルボン酸)(NCS)3を含む、請求項1に記載の染料感応太陽電池。
- 前記複合染料の総モル数に対して、前記Ru(2,2’:6’,2”−テルピリジン−4,4’,4”−トリカルボン酸)(NCS)3のモル数は10〜80%である請求項2に記載の染料感応太陽電池。
- 前記複合染料が、Ru(2,2’:6’,2”−テルピリジン−4,4’,4”−トリカルボン酸)(NCS)3とRu(4,4’−ジカルボキシ−2,2’−ビピリジン)2(CN)2を含む、請求項1に記載の染料感応太陽電池。
- 前記多孔質膜は、平均粒径100nm以下の金属酸化物を含む、請求項1に記載の染料感応太陽電池。
- 前記金属酸化物粒子の平均粒径の10〜40nmの範囲内である、請求項5に記載の染料感応太陽電池。
- 前記多孔質膜には、導電性微粒子及び光散乱子のうち少なくとも一つがさらに含まれる、請求項5に記載の染料感応太陽電池。
- 前記光散乱子は、前記多孔質膜をなす金属酸化物と同じ原料または同じ特性の物質からなり、平均粒径が100nm以上の範囲内にある、請求項7に記載の染料感応太陽電池。
- 前記第1電極は、ポリエチレンテレフタレート(PET)、ポリエチレンナフタレート(PEN)、ポリカーボネート(PC)、ポリプロピレン(PP)、ポリイミド(PI)、トリアセテートセルロース(TAC)のうちの何れか一つを含む第1透明基板と、前記基板を被覆する酸化インジウムスズ(ITO)、フッ素添加酸化スズ(FTO)、ZnO−Ga2O3、ZnO−Al2O3、SnO2−Sb2O3のうちの一つからなる導電性フィルムを含む、請求項1に記載の染料感応太陽電池。
- 前記第2電極は、ポリエチレンテレフタレート(PET)、ポリエチレンナフタレート(PEN)、ポリカーボネート(PC)、ポリプロピレン(PP)、ポリイミド(PI)、トリアセテートセルロース(TAC)のうちの何れか一つを含む第2透明基板と、前記基板上を被覆する酸化インジウムスズ(ITO)、フッ素添加酸化スズ(FTO)、ZnO−Ga2O3、ZnO−Al2O3、SnO2−Sb2O3のうちの何れか一つを含む第1導電性フィルムと、前記第1導電性フィルム上を被覆するPtまたは貴金属物質を含む第2導電性フィルムを含む、請求項1に記載の染料感応太陽電池。
- 透光性物質からなる第1電極;
前記第1電極の一方の面に形成される多孔質膜;
前記多孔質膜に吸着されてRuを含む錯体からなり、互いに異なるリガンドを有する第1染料物質と第2染料物質を含む複合染料;
前記多孔質膜が形成された前記第1電極の一方の面に対向するように形成される第2電極;及び
前記第1電極と第2電極の間の空間に充填される電解質
を含む染料感応太陽電池。 - 透光性物質からなる第1電極及び第2電極を用意する段階;
前記第1電極の一方の面に多孔質膜を形成する段階;
二種類以上の染料物質を添加する複合染料を用意して、前記複合染料を前記多孔質膜に吸着する段階;及び
前記第1電極の多孔質膜に第2電極が対向するように配置させて、前記第1電極と前記第2電極の間に電解質を充填して密封する段階
を含む染料感応太陽電池の製造方法。 - 前記複合染料を用意する時には、Ru(2,2’:6’,2”−テルピリジン−4,4’,4”−トリカルボン酸)(NCS)3を、前記複合染料の総モル数に対して10〜80%のモル数に添加する、請求項12に記載の染料感応太陽電池の製造方法。
- 前記複合染料を用意する時には、Ru(2,2’:6’,2”−テルピリジン−4,4’,4”−トリカルボン酸)(NCS)3をアルコールに0.1〜5mMの濃度に溶解した状態で、他の種類の染料物質をさらに添加する、請求項13に記載の染料感応太陽電池の製造方法。
- 前記複合染料を用意する時にはRu(2,2’:6’,2”−テルピリジン−4,4’,4”−トリカルボン酸)(NCS)3 にRu(4,4’−ジカルボキシ−2,2’−ビピリジン)2(CN)2を添加する、請求項12に記載の染料感応太陽電池の製造方法。
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