オーガニック・エレクトロニクス用の3次元ネットワーク・アセンブリを備えた3刃リレン・プロペラ
Dong Meng1,2, Huiting Fu1,3,2, Chengyi Xiao1,2
1Beijing National Laboratory for Molecular Sciences, Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences , Beijing 100190, China.
Journal of the American Chemical Society
|July 22, 2016
まとめ
2つの新しい結合ペリレン染料であるトリペリレンヘキサイミド (TPH) とセレニウムで無効化されたTPH (TPH-Se) は,優れた電子輸送特性を示しています. これらの染料は太陽電池で高い電力変換効率を達成し,先進的な光電子アプリケーションの可能性を証明しました.
科学分野:
- 材料科学
- オーガニック電子
- 太陽光発電
背景:
- 結合された有機分子は効率的な光電子装置の開発に不可欠です.
- ペリレンビシミド (PBIs) は,その優れた電子受容特性と安定性のために広く研究されています.
- 性能が向上した新しいPBIデリバティブの開発は,依然として活発な研究分野です.
研究 の 目的:
- 2つの新しいC3対称結合ペリレン染料:トリペリレンヘキサイミド (TPH) とセレニウム無効化されたTPH (TPH-Se) の合成と特徴づけ
- TPHとTPH-Seの構造的,光学的,電子的性質を調査する.
- アクセプターベースの太陽電池のTPHとTPH-Seの性能を評価する.
主な方法:
- TPHとTPH-Seを効率的に合成する
- 光学特性を決定するスペクトル解析 (UV-Vis吸収).
- 単一結晶のX線微分法で分子と結晶の構造を明らかにする.
- 電子の移動性を評価するための単結晶トランジスタの製造と試験.
- TPHとTPH-Seベースの太陽電池の構築と特徴付け
主要な成果:
- TPHとTPH-Seは,広大で強い吸収 (300~600 nm) と適切なLUMOレベル (-3.8 eV) を表しています.
- TPHは,歪んだプロペラ構成と強力なπ-π相互作用を持つ3Dネットワークを示しています.
- TPH-Seは,Se·O相互作用により,より歪んだプロペラとコンパクトな3Dネットワークを表示します.
- この2つの材料は,単結晶トランジスタで良好な電子輸送能力を示しています.
- TPHとTPH-Seベースの太陽電池は,それぞれ8.28%と9.28%の高い電力変換効率を達成しています.
結論:
- 合成されたTPHとTPH-Seの染料は,太陽電池の適用に適した光電子特性を持っています.
- 独特の分子構成と分子間相互作用が 性能の向上に貢献しています
- これらの新型ペリレン誘導体は 効率的な有機太陽電池の有望な材料です
関連する概念動画
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