逆転ペロブスキート太陽電池に対する実現可能な電子特性を持つシアゾル改変炭酸ナノシートの影響
Daniel Cruz1, Jose Garcia Cerrillo2, Baris Kumru1
1Department of Colloid Chemistry , Max-Planck-Institute of Colloids and Interfaces , Am Mühlenberg 1 , 14476 Potsdam , Germany.
Journal of the American Chemical Society
|July 17, 2019
まとめ
研究者は,ペロブスキート太陽電池のための金属フリー電子輸送層 (ETL) として,新しいチアゾール改変炭酸を開発しました. この材料は電荷再結合を抑制し,効率と安定性を向上させることで性能を向上させます.
科学分野:
- 材料科学
- 再生可能エネルギー
- ナノテクノロジー
背景:
- 電子輸送層 (ETL) は,電子機器の効率的な電荷抽出に不可欠です.
- ペロブスキート太陽電池は,安定した,費用対効果の高い,高性能なインターフェイスレイヤを必要とします.
- 既存のETLは,処理,コスト,または安定性に関する課題に直面します.
研究 の 目的:
- 新しい金属のない電子輸送層 (ETL) のための簡単な合成経路を開発する.
- 逆転ペロブスキート太陽電池におけるETLとしてのチアゾール改変炭酸ナノシートの有効性を調査する.
- ペロブスキート太陽電池の性能と安定性を向上させ,インターフェイスの充電ダイナミクスを改善する.
主な方法:
- シアゾル改変炭酸塩を1.5nm厚さのナノシートに合成する
- 合成された材料を均質で金属のないETLとして利用した逆転ペロブスキート太陽電池の製造.
- 材料の電子特性とデバイスの性能の特徴,オープン回路の電圧 (Voc) とショート回路の電流密度 (Jsc) を含む.
主要な成果:
- 1.09Vの高開電圧 (Voc) と20.17mA/cm2の短路電流密度 (Jsc) を達成した.
- ペロブスキート/ETLインターフェイスで充電再結合を効果的に抑制することが実証されています.
- 効率的な電荷抽出のための溶液処理可能な,金属のないETLとしての材料の適性を確認しました.
結論:
- シアゾル改性炭酸ナノシートは,高度な電子輸送層のための有望な材料です.
- この炭素窒素基の構造は,p-i-nペロブスキート太陽電池の電荷抽出を大幅に強化します.
- 開発された材料は より効率的で安定的で費用対効果の高いペロブスキート太陽電池技術への道を示しています
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