コアシアン酸ペリレンカルボキシルジミド誘導体に基づく有機nチャンネルトランジスタ
R Thomas Weitz1, Konstantin Amsharov, Ute Zschieschang
1Max Planck Institute for Solid State Research, Heisenbergstrasse 1, 70569 Stuttgart, Germany. t.weitz@fkf.mpg.de
Journal of the American Chemical Society
|March 14, 2008
まとめ
フッ素機能化された有機半導体は,空気安定のnチャンネルトランジスタを可能にします. 研究者らはフッ素を発見した.
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:
- 有機薄膜フィールド効果トランジスタ (OTFT) は,柔軟な電子機器に不可欠です.
- 空気安定性のあるnチャネル有機半導体の開発は依然として課題です.
- フッ素機能化は,空気の安定性を高めるための一般的な戦略です.
研究 の 目的:
- 新型コアシアン化ペリレンカルボキシルジミド (PDI) の合成と特徴付け.
- トランジスタの性能と空気の安定性に対するフッ素を含む置換物の影響を調査する.
- 空気安定のnチャネル操作を実現するフッ素の役割を解明する.
主な方法:
- 5つのフッ素機能化されたコアシアネートPDIの合成.
- nチャネル有機薄膜フィールド効果トランジスタ (OTFT) の製造.
- 分子構造,薄膜形態,環境条件下におけるデバイスの性能の特徴.
主要な成果:
- 0.1cm2/Vs.までのキャリアモビリティを持つ空気安定のnチャンネルOTFTを達成しました.
- 分子設計,膜形態学,堆積温度,装置特性の間の相関関係が確立されています.
- 空気の安定性におけるフッ素の役割は,以前の仮定とは異なることが観察されました.
結論:
- フッ素の機能化は,空気に安定したnチャネル有機トランジスタにつながる可能性があります.
- 分子構造と処理条件は,デバイスの性能に大きな影響を与えます.
- 空気の安定性に対するフッ素の貢献の正確なメカニズムについては,さらなる調査が必要である.
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