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Flash Infrared Annealing for Perovskite Solar Cell Processing
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液体イオン添加物を用いた長時間安定性を持つ平面ペロブスキート太陽電池
Sai Bai1,2, Peimei Da3, Cheng Li4,5
1Clarendon Laboratory, University of Oxford, Oxford, UK. sai.bai@liu.se.
Nature
|July 12, 2019
まとめ
イオン液体はペロブスキート太陽電池の効率と長期の安定性を高めます この改良された太陽電池は 長期にわたる厳しい条件下で 最小限の性能低下を示し 信頼性の高いペロブスキート光伏技術への道を切り開いています
科学分野:
- 材料科学
- 再生可能エネルギー
- 太陽光発電
背景:
- 金属ハリドペロブスキート太陽電池は非常に有望な光発電技術です.
- 長期の安定性は改善されたが,イオン移動は,特に運用上のストレス (熱と光) の下では,依然として重要な課題である.
研究 の 目的:
- ペロブスキート太陽電池の効率と長期の安定性を高めるため
- ペロブスキート活性層のイオン移動の問題に対処する.
主な方法:
- ペロブスキート膜にイオン液体を取り込みます.
- 陽性・内在・陰性 (PIN) の光発電装置の製造
- 高温 (70~75°C) で連続的にシミュレートされた全スペクトルの太陽光下での装置の安定性を試験する.
主要な成果:
- イオン性液体を含む装置は,効率が向上したことを示した.
- 装置の長期安定性の顕著な改善が観察されました.
- 最も安定したカプセル化された装置は,厳しい条件下で1,800時間の継続的な動作後に5%の性能低下しか示さなかった.
- 80%の性能を維持するための推定寿命は約5,200時間です.
結論:
- イオン液体組み込みはペロブスキート太陽電池の効率と安定性を改善する効果的な戦略です.
- このアプローチはイオン移動の問題を大幅に軽減し,デバイスの長寿を高めます.
- 激しい環境下での長期の安定性は,信頼性の高いペロブスキート光伏技術への重要な進歩を表しています.
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