メチルアモニウムを含まない高性能で安定したペロブスキート製の太陽電池
Silver-Hamill Turren-Cruz1,2,3, Anders Hagfeldt4, Michael Saliba5
1Adolphe Merkle Institute, Chemin des Verdiers 4, CH-1700 Fribourg, Switzerland.
Science (New York, N.Y.)
|October 13, 2018
まとめ
この研究では,無機カチオンチューニングを使用して,ブロミンやメチラモニウム (MA) を含まない安定した高効率のペロブスキート太陽電池 (PSC) を導入します. これらのMAのないPSCは20%以上の効率を達成し,商用化のための安定性を向上させます.
科学分野:
- 材料科学
- 再生可能エネルギー
- 太陽光発電
背景:
- 高性能ペロブスキート太陽電池 (PSC) には,しばしばブロミン (Br) とメチルアモニウム (MA) が含まれており,最適でない帯域の隙間と熱的不安定性をもたらします.
- BrとMAを避けることは,より良い光電子特性を持つより安定したペロブスキットを開発するために不可欠です.
研究 の 目的:
- 高い結晶性,Brフリー,MAフリーなフォームミジニウムベースのペロブスキットを開発する.
- 不安定なコンポーネントを除去することで高効率で安定性を高めるため
- 安定した互換性のある材料によるペロブスキート商用化の新たな方向性を探求する.
主な方法:
- ルビジウム (Rb) とセシウム (Cs) を用いた無機カチオンチューニングにより,ホルマミジウムベースのペロブスキットが生成される.
- 充電輸送インターフェイスのポリマーインターレイヤを使用して平面ペロブスキート太陽電池の製造.
- 電力変換効率と動作安定性を決定する装置の特徴.
主要な成果:
- Br や MA のない高結晶のフォームミディニウムベースのペロブスキット.
- 平面装置の構造で20.35%の安定した電力変換効率を達成した.
- 従来のPSCと比較して,メソポラスインターレイヤーなく,加工温度が100°C以下で,大幅な安定性を示した.
結論:
- Formamidiniumベースのペロブスキットは, BrまたはMAのない高性能太陽電池の実行可能で有望な代替品です.
- 非有機カチオンチューニングは,ペロブスキットの結晶性と安定性を高めるための効果的な戦略です.
- MAのないペロブスキットは,タンドムと柔軟な基板に適した,安定した,効率的で商業的に実行可能なペロブスキット太陽電池技術に向けた重要な進歩を表しています.
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