高流動性有機半導体のためのビフェニレンを含むアセンの結晶工学
Jinlian Wang, Ming Chu, Jian-Xun Fan1,2
1Institute of Theoretical Chemistry, Laboratory of Theoretical and Computational Chemistry , Jilin University , Changchun 130023 , China.
Journal of the American Chemical Society
|January 31, 2019
まとめ
新生ビナフト[2
科学分野:
- オーガニックの電子機器
- 材料科学
- 固体物理学
背景:
- ビスナフト[2',3':3,4]サイクロブット[1,2-b:1',2'-i]アントラゼン (BNCBA) 誘導体は,その半導体特性のために研究されている.
- 分子包装は有機半導体における電荷輸送に大きく影響する.
研究 の 目的:
- 新しいBNCBA誘導体を合成し,特徴づけること.
- アルキル鎖の長さのBNCBA分子パッキングと半導体行動への影響を調査する.
- これらの新しい材料の電荷輸送特性を評価する.
主な方法:
- 異なるアルキル置換剤を用いたBNCBA誘導体の合成
- 単一結晶のX線微分法で 分子パッキングを決定する
- チャージキャリアのモビリティの理論的計算.
- 溶液加工薄膜トランジスタ (TFT) の製造と特徴付け
主要な成果:
- アルキル置換はBNCBA結晶のπ-πスタッキングを効果的に修正する.
- テトラヘキシルBNCBAの誘導体は,異常なジグザグ π-π スタッキングの配置を示している.
- 理論上の移動性計算は,観測された負荷輸送特性と相関する.
- すべてのBNCBAデリバティブは,TFTでp型半導体行動を示す.
結論:
- BNCBAのデリバティブは,有望なp型有機半導体である.
- アルキル置換による分子包装の調整は,半導体の性能を向上させるための実行可能な戦略です.
- テトラヘキシル誘導体は,2. 9cm2/Vsの高いフィールド効果の移動性を達成します.
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