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>18%の効率を持つ安定した大面積のペロブスキート太陽電池用モノアモニアム・ポルフィリン
Congping Li1, Jun Yin2, Ruihao Chen2
1State Key Laboratory of Applied Organic Chemistry, Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province, College of Chemistry and Chemical Engineering , Lanzhou University , Lanzhou 730000 , P.R. China.
Journal of the American Chemical Society
|March 16, 2019
まとめ
この研究では,モノアモニウム亜鉛ポルフィリン (ZnP) を大面積のペロブスキート太陽電池 (PSC) に導入しています. ZnPはフィルムの品質と安定性を向上させ,大面積の装置では18.3%の効率を達成し,全体的なPSC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
- 太陽光発電
背景:
- ペロブスキート膜の結晶化と欠陥の効率的な制御は,高性能で安定したペロブスキート太陽電池 (PSC) に不可欠です.
- 大面積の均一なペロブスキート膜の製造は,PSCの商業化にとって重要な課題です.
研究 の 目的:
- 大面積の均一なペロブスキート膜を製造し,光伏の性能と安定性を向上させるための簡単な方法を開発する.
- モノアモニウム亜鉛ポルフィリン (ZnP) がペロブスキート結晶化と受動不全を制御する役割を調査する.
主な方法:
- 表面活性剤のようなモノアモニウム亜鉛ポルフィリン (ZnP) をメチルアモニウムヨウ素ペロブスキート前駆体溶液に直接埋め込む.
- 大面積の均一なペロブスキート薄膜 (最大16cm2) を製造するためのブレードコーティング技術.
- ペロブスキットの結晶化,欠陥の被動化,装置の性能に対するZnPの影響の詳細な分析.
主要な成果:
- ZnPで覆われた大面積 (1.96 cm2) のPSCで前例のない18.3%の電力変換効率を達成しました.
- 小面積 (0.1cm2) の装置では20.5%の高い効率を示した.
- ZnPはペロブスキート表面と粒子の境界で結晶化と受動欠陥を効果的に制御しました.
- 1000時間の安定性試験 (85°C,45%の湿度) の後,ZnPで封じ込められた装置は初期効率の90%以上を保持した.
結論:
- ZnPを用いた分子封じ込めは,ペロブスキートフィルムの大面積のコーティング,形状の調整,および欠陥抑制のためのシナジェスティックなアプローチを提供します.
- この戦略は,ペロブスキート太陽電池の光伏性能と運用安定性を大幅に改善します.
- この発見は,効率的で耐久性の高いPSCのスケーラブルな製造のための有望な経路を示しています.
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