ゲートダイエレクトリックとして超薄な交結ポリマーによって有効化された低電圧有機フィールド効果トランジスタとインバーター
Myung-Han Yoon1, He Yan, Antonio Facchetti
1Department of Chemistry and the Materials Research Center, Northwestern University, 2145 Sheridan Road, Evanston, Illinois, 60208, USA.
Journal of the American Chemical Society
|July 21, 2005
まとめ
研究者らは,高性能有機薄膜トランジスタ (OTFT) のための新しい超薄ポリマーブレンドダイエレクトリックを開発した. これらの材料は,柔軟な電子機器の効率的な低電圧操作と溶液処理を可能にします.
科学分野:
- マテリアルサイエンス 材料科学
- オーガニック・エレクトロニクス
- ポリマー化学のポリマー化学について
背景:
- 高性能有機薄膜トランジスタ (OTFT) は,高度なゲート介電材料を必要とします.
- 主要な要件には,優れた絶縁,低電圧操作,およびソリューションの処理能力が含まれます.
- 機械的な柔軟性と様々な材料との互換性は,デバイスのアプリケーションにおいて極めて重要です.
研究 の 目的:
- OTFTのための新しい,スピンコーティング可能なポリマーブレンドダイエレクトリックを開発する.
- 超薄 (<20 nm) のダイエレクトリックを,優れた絶縁性および容量性特性を得るために.
- 低電圧で柔軟なOTFT製造を可能にするために.
主な方法:
- スピンコーティングによるクロスリンクされたポリマーブレンド介電材料の製造.
- 漏れ電流と電容量を含む介電性能的特徴.
- ディエレクトリックをOTFT装置および補完インバーターに統合する.
主要な成果:
- 超薄 (<20 nm) ポリマーブレンドのダイエレクトリックは,優れた絶縁性能 (約. 10(-8) Acm(-2) の漏れ).
- 高ゲート容量 (最大で約. 300 nF cm(-2)) の低圧動作を可能にする.
- 大面積 (約1km) にわたる均一な介電層が実証されています. 150cm(2)) で,良好な粘着力とパターン形成能力がある.
- 2Vで動作する補完インバーターの製造.
結論:
- 開発されたポリマーブレンド介電材は,高性能OTFTの厳しい要件を満たしています.
- これらの材料は,効率的で,低電圧で,溶液処理による柔軟なエレクトロニクスを促進します.
- 新型の介電剤は,先進的な有機電子アプリケーションの有意な約束を示しています.
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