ディベンゾチオフェノ[6,5-b:6',5'-f]チエノ[3,2-b]チオフェン (DBTTT):フィールド効果トランジスタ用の高性能小分子有機半導体
Jeong-Il Park1, Jong Won Chung1, Joo-Young Kim1
1Material Research Center, Samsung Advanced Institute of Technology, Samsung Electronics Co., Ltd. , Samsung-ro 130, Yongtong-gu, Suwon-si, Gyeonggi-do 443-803, Korea.
Journal of the American Chemical Society
|April 1, 2015
まとめ
新しい有機半導体であるディベンゾチオフェノ[6,5-b:6]
科学分野:
- オーガニック・エレクトロニクス
- マテリアルサイエンス 材料科学
- 半導体物理学の物理
背景:
- 有機半導体は,柔軟な電子機器に不可欠です.
- チオフェンベースの材料は,調節可能な電子特性を提供します.
- 分子間相互作用の強化は,電荷輸送の改善の鍵です.
研究 の 目的:
- 新しいチオフェンに富んだヘテロアセンを合成し,特徴づけること,ディベンゾチオフェノ[6,5-b:6',5'-f]チエノ[3,2-b]チオフェン (DBTTT).
- S-S相互作用が分子包装と電荷移転に与える影響を調査する.
- フィールド効果トランジスタにおけるDBTTTの性能を評価する.
主な方法:
- DBTTTの合成について.
- 構造分析のためのX線結晶学.
- ポリクリスタル薄膜トランジスタの製造と特徴付け.
主要な成果:
- DBTTTは,強いS-S相互作用により,強化された分子間電荷移転を示す.
- 結晶構造は,DNTTと比較して, π-π 距離の短縮とより高いパッキング密度を示しています.
- DBTTTの薄膜トランジスタで最大19.3cm(2) ·V(-1) ·s(-1) の穴の移動性を達成し,DNTTの6倍に達しました.
- イソトロピック角移動性と,高温140°Cまでの熱安定性が実証されています.
結論:
- DBTTTは優れた電荷輸送特性を持つ有望な有機半導体です.
- 分子デザインは,分子間相互作用を効果的に強化し,パフォーマンスを向上させます.
- DBTTTは,オーガニック・エレクトロニクスにおけるデバイスの均一性と処理可能性の可能性を示しています.
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