JP2012514847A - 色素増感太陽電池用高分子電解質及びこれを利用した色素増感太陽電池の製造方法 - Google Patents
色素増感太陽電池用高分子電解質及びこれを利用した色素増感太陽電池の製造方法 Download PDFInfo
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G9/00—Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture
- H01G9/20—Light-sensitive devices
- H01G9/2004—Light-sensitive devices characterised by the electrolyte, e.g. comprising an organic electrolyte
- H01G9/2009—Solid electrolytes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G9/00—Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture
- H01G9/20—Light-sensitive devices
- H01G9/2027—Light-sensitive devices comprising an oxide semiconductor electrode
- H01G9/2031—Light-sensitive devices comprising an oxide semiconductor electrode comprising titanium oxide, e.g. TiO2
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- 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
-
- 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
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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- Microelectronics & Electronic Packaging (AREA)
- Hybrid Cells (AREA)
- Photovoltaic Devices (AREA)
Abstract
色素増感太陽電池用高分子電解質及びこれを利用した色素増感太陽電池の製造方法を提供し、さらに詳細には、従来の液状電解質を使用する色素増感太陽電池の最大短所である漏液を基本的に防止できるだけでなく、従来の高分子電解質に比べて高い光変換効率を表し、大面積の色素増感太陽電池やフレキシブル(flexible)色素増感太陽電池の製造工程に採用できる等の優れた色素増感太陽電池用高分子電解質及びこれを利用した色素増感太陽電池の製造方法を提供すること。
【解決手段】
色素増感太陽電池用高分子電解質は、熱硬化型エポキシ樹脂、イミダゾール系硬化促進剤及び金属塩を含むことを特徴とし、色素増感太陽電池用高分子電解質を利用した色素増感太陽電池の製造方法は、前記色素増感太陽電池用高分子電解質を使用するものの、前記色素増感太陽電池用高分子電解質を作動電極と対電極間の接着物として利用し、最終的な接合の形態が固体状を維持することを特徴とする。
【選択図】なし
Description
2)二酸化チタン酸化物のナノ気孔内の侵入が容易で、かつ界面接着力に優れた機能を有する高分子組成物、
3)作動電極と対電極間の接着力に優れており、耐久性に優れた高分子組成物、
4)金属塩の解離とイオン伝達が可能な高分子組成物、
5)色素増感太陽電池の製造過程において溶液コーティング及びホットメルト型フィルム接着が同時に可能な組立工程。
2)エポキシ樹脂が金属塩を解離させうる多量の極性グループを有しているという点、
3)エポキシ樹脂は、硬化初期に低い分子量を有しているため、太陽電池の製造過程でナノサイズの二酸化チタン酸化物層に侵入しやすいという点、
4)エポキシ樹脂の接着力と硬化後の耐久性が優秀であるという点、
5)エポキシ樹脂は、溶媒のない状態の液型、半固体型及び全固体型に製造可能であるため、太陽電池の製造過程において溶液コーティングはもちろん、フィルム型ホットメルト接合が可能であるという点である。
(1)作動電極の製造
FTOガラス基板を用意し、前記基板の透明導電性酸化物層の上部に二酸化チタン(TiO2)を含むコーティング用組成物をドクターブレード法で塗布し、520℃で40分間熱処理して、ナノサイズの金属酸化物間の接触及び充填がなされるようにして、約7μm厚のナノ酸化物層を形成させた。厚さは、3M社のマジックテープ(登録商標)をスペーサとして利用して調節した。次に、前記ナノ酸化物層の上部に同じコーティング用組成物を同じ方法で塗布し、520℃の温度で40分間熱処理して約15μm厚のナノ酸化物層を形成させた。ソーラーニックス社のN−719染料をエタノールと共に用いて染料溶液を製造した後、ここに前記ナノ酸化物層の形成された基板を48時間の間に担持した後に乾燥させて、ナノサイズの金属酸化物に染料を吸着させて陰極系電極を製造した。
FTOガラス基板を用意し、前記基板の透明導電性酸化物層の上部に六塩化白金酸(H2PtCl6)が溶解されている2−プロパンオール溶液をスピンコート法で塗布した後、480℃にて30分間熱処理して白金層を形成させて陽極系電極を製造した。
試料−1
クレゾールノボラックエポキシ樹脂(東都化成株式会社、YDCN 8P)100重量部、1−シアノエチル−2−フェニルイミダゾール(四国化成工業株式会社、キュアゾール2PZ−CN)2重量部を投入して、メチルエチルケトンの溶媒下で3時間撹拌し、ヨウ化リチウム(シグマアルドリッチ社、LiI)5重量部を混合して12時間撹拌して高分子電解質混合溶液を得た。
試料−2
前記試料−1においてヨウ化リチウム10重量部を使用したことを除いては、前記試料−1と同じ方法で製造した。
試料−3
前記試料−1においてヨウ化リチウム30重量部を使用したことを除いては、前記試料−1と同じ方法で製造した。
試料−4
前記試料−1においてヨウ化リチウム50重量部を使用したことを除いては、前記試料−1と同じ方法で製造した。
製造された作動電極上に前記製造された高分子電解質溶液をメイヤーバーコートで塗布した後、80℃で5分乾燥して溶媒を除去し約50μm厚の高分子電解質層を得た。次に、対電極を張り合わせた後、ホットプレスで130℃×0.01Mpaの条件で圧着して別途の密封工程無しで色素増感太陽電池を製造した。
前記実施例1における(3)高分子電解質の製造においてクレゾールノボラックエポキシ樹脂の代わりにビスフェノールA型液状エポキシ樹脂(東都化成株式会社製、YD128)100重量部を使用したことを除いては、前記実施例1と同じ方法で実施した。
前記実施例1における(3)高分子電解質の製造においてクレゾールノボラックエポキシ樹脂の代わりにポリエチレンオキサイド(シグマアルドリッチ社製、PEO)100重量部を使用し、硬化促進剤を排除し、溶媒をアセトニトリル(シグマアルドリッチ社製、アセトニトリル(acetonitrile))を使用して希釈割合を固形分5重量部と30重量部に溶液を分けて5重量部をまず塗布した後、2時間の間に待ち、続いて30重量部を塗布して電解質層の形成を完了し、前記を除いては、前記実施例1と同じ方法で実施した。
前記実施例及び比較例で製造された高分子電解質のイオン伝導度を評価するために、インピーダンスアナライザー(impedence analyzer)を使用し、下記の式によりイオン伝導度値を測定した。
式中、Rは抵抗、rはイオン伝導度、lは、電極間距離、Aは、試料の測定断面積である。
前記実施例及び比較例で製造した色素増感太陽電池の光変換効率を評価するために、下記のような方法で光電圧及び光電流を測定して光電気的特性を観察し、これにより得られた電流密度(Isc)、開放電圧(Voc)、及び充填係数(fill factor、ff)を利用して光変換効率(η)を下記の式1にて計算した。このとき、光源としては、ゼノンランプ(Xenon lamp、Oriel)を使用し、前記ゼノンランプの太陽条件(AM1.5)は、標準太陽電池を使用して補正した。
式中、Pは、100mW/cm2(1 sun)を示す。
Claims (8)
- 色素増感太陽電池用高分子電解質であって、
熱硬化型エポキシ樹脂、イミダゾール系硬化促進剤及び金属塩を含むことを特徴とする、色素増感太陽電池用高分子電解質。 - 前記エポキシ樹脂は、2〜8官能基を有し、分子量が500〜8000であることを特徴とする、請求項1に記載の色素増感太陽電池用高分子電解質。
- 前記イミダゾール系硬化促進剤の含有量は、前記エポキシ樹脂100重量部当たり0.1重量部〜20重量部であることを特徴とする、請求項1に記載の色素増感太陽電池用高分子電解質。
- 前記金属塩の含有量は、前記熱硬化型エポキシ樹脂100重量部当たり1重量部〜200重量部であることを特徴とする、請求項1に記載の色素増感太陽電池用高分子電解質。
- 前記色素増感太陽電池用高分子電解質の粘度は、10cp(centi poise)〜8,000cpであることを特徴とする、請求項1に記載の色素増感太陽電池用高分子電解質。
- 請求項1〜5のうちの何れか1項に記載の色素増感太陽電池用高分子電解質を使用するものの、前記色素増感太陽電池用高分子電解質を作動電極と対電極間の接着物として利用し、最終的な接合の形態が固体状を維持することを特徴とする、色素増感太陽電池用高分子電解質を利用した色素増感太陽電池の製造方法。
- 前記電極基板間の接合は、ホットメルト接合であることを特徴とする、請求項6に記載の色素増感太陽電池用高分子電解質を利用した色素増感太陽電池の製造方法。
- 前記電極基板間の接合は、フレキシブル基板を利用して連続的なロールコーティング又は連続的なロールホットメルト接合であることを特徴とする、請求項6に記載の色素増感太陽電池用高分子電解質を利用した色素増感太陽電池の製造方法。
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KR101381873B1 (ko) * | 2012-04-13 | 2014-04-14 | 한국과학기술연구원 | 고분자 젤 전해질 조성물, 이의 제조방법 및 이를 포함하는 염료감응 태양전지 |
KR20160090409A (ko) | 2015-01-21 | 2016-08-01 | 상명대학교 천안산학협력단 | 유연 필름형 고분자 전해질 및 이를 이용한 염료감응형 태양전지 |
CN106601487A (zh) * | 2017-01-06 | 2017-04-26 | 西北工业大学 | 一种低成本的聚合物电解质及其制备与应用 |
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JP7063454B2 (ja) * | 2018-03-30 | 2022-05-09 | 太陽誘電株式会社 | 色素増感太陽電池及びその製造方法 |
KR102522551B1 (ko) * | 2018-12-12 | 2023-04-14 | 한국전기연구원 | 염료감응형 태양전지용 준고체 전해질 및 이를 이용한 염료감응형 태양전지 제조방법 |
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CN102334195A (zh) | 2012-01-25 |
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