薄膜トランジスタのための空気安定,溶液処理可能なnチャネルおよびアンビポラー半導体で,インデノフローレネビス (ダイアノビニレン) コアに基づいています
Hakan Usta1, Antonio Facchetti, Tobin J Marks
1Department of Chemistry and the Materials Research Center, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, USA.
Journal of the American Chemical Society
|June 12, 2008
まとめ
研究者らは,電子機器用の新しい有機半導体であるTIFDMTとP-IFDMT4を開発した. これらの材料は,高性能と優れた空気安定性を示し,先進的な有機電子機器への道を開く.
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
- 半導体に関する研究
背景:
- 高性能オーガニック半導体の開発は,高度な電子アプリケーションにとって極めて重要です.
- 既存の材料は,空気の安定性や加工性に関する課題に直面することが多い.
- これらの制約を克服するために,新しい分子設計が必要です.
研究 の 目的:
- 新しいnチャネル半導体分子であるTIFDMTとチオフェンベースの共ポリマーであるP-IFDMT4.4を合成し,特徴づけること.
- これらの新材料に基づいたデバイスのフィールド効果性能と空気安定性を評価する.
- 溶液処理可能な,空気に安定した両極性ポリマーの可能性を実証する.
主な方法:
- TIFDMTとP-IFDMTの合成と特徴付け4. TIFDMTとP-IFDMTの統合と特徴付け
- スピンコーティングを用いたフィールド効果トランジスタの製造.
- 空気中のデバイスの性能テスト,移動性,オン電圧,オン/オフ比率の測定を含む.
- 環境条件下でのデバイスの安定性の評価.
主要な成果:
- TIFDMTベースのトランジスタは,低開電圧 (0〜+5V) と高いオン/オフ比 (10〜7〜10〜8) で高い電子移動率 (0.10〜0.16cm2/Vs) を達成しました.
- これらのTIFDMT装置は,長期保存中に優れた空気安定性を示しました.
- P-IFDMT4ベースのデバイスは,溶液から処理可能な空気安定の二極性ポリマーの最初の例を表しています.
結論:
- 新型インデノフローレネビス (ディシアノヴィニレン) コアは,高性能のnチャネル有機半導体を可能にします.
- 開発された材料は,実用的な電子アプリケーションの重要な要因である優れた空気安定性を提供します.
- P-IFDMT4は,安定した,溶液処理可能なアンビポラー有機電子機器の開発に有望な材料です.
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