サイドチェーン工学による形状の最適化により,優れた充填率と安定性を持つ全ポリマー太陽電池が可能
Xi Liu1,2, Chaohong Zhang3, Chunhui Duan1
1Institute of Polymer Optoelectronic Materials and Devices, State Key Laboratory of Luminescent Materials and Devices , South China University of Technology , Guangzhou 510640 , People's Republic of China.
Journal of the American Chemical Society
|June 27, 2018
まとめ
研究者らは,エンジニアリングされたポリマーを使用して,新しい全ポリマー太陽電池 (全PSC) を開発しました. この戦略は,ナノスケールの形態学を改善し,高電力変換効率 (PCE) とポリマー:ポリマーブレンドの安定性を高めます.
科学分野:
- 材料科学
- オーガニック電子
- ポリマー化学
背景:
- オールポリマー太陽電池 (オールPSC) は,大量ヘテロジャンクションでドナーと受容体の役割の両方に結合されたポリマーを使用します.
- ポリマー:ポリマー混合物の最適形態の達成は,すべてのPSCのパフォーマンスにとって重要な課題です.
研究 の 目的:
- ナノスケールの組織を最適化するための新しい戦略を開発する.
- ナフタリン二酸化物 (NDI) ベースのポリマー受容体を設計し,性能と安定性を向上させる.
主な方法:
- 線形オリゴエチレン酸化物 (OE) 鎖を導入することによって,NDIベースのポリマーN2200のサイドチェーンエンジニアリング.
- 異なるOE含有量を持つNDIベースのポリマー受容体 (NOE x) の一連の合成
主要な成果:
- 10%OEチェーン置換によるNOE10ポリマーは,8.1%のパワー変換効率 (PCE) と0.75の充填因数 (FF) を達成した.
- NOE10をベースにしたすべてのPSCは,65°Cで300時間後に最初のPCEの97%以上を保持し,優れた長期および熱安定性を示しました.
結論:
- サイドチェーンエンジニアリングは,すべてのPSCにおける形態の最適化のための効果的な戦略です.
- NOE10ポリマーは,すべてのPSCにおける既存の受容体ポリマーの高性能で安定した代替品として大きな可能性を秘めている.
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