半フッ素アルキルサイドチェーンによるポリマー半導体の固体バックボーン組織
Boseok Kang1, Ran Kim2, Seon Baek Lee1
1Department of Chemical Engineering, Pohang University of Science and Technology , Pohang 790-784, Korea.
Journal of the American Chemical Society
|December 15, 2015
まとめ
研究者らは,半フッ素付サイドチェーンを使用して,新しいn型結合ポリマーを開発しました. これらのポリマーは,高電子移動性とフィールド効果トランジスタの優れたオンオフ比を示し,有機電子学の重要な課題に取り組んでいます.
科学分野:
- 材料科学
- オーガニック電子
- ポリマー化学
背景:
- 高可動性p型結合ポリマーは一般的だが,高可動性n型結合ポリマーは依然として稀である.
- 有機電子機器の進歩には,効率的なn型有機半導体の開発が不可欠です.
研究 の 目的:
- 強化されたn型半導体特性を持つナフタリン二酸化物ベースの新型ポリマーを設計し合成する.
- 半フッ化アルキルサイドチェーンがポリマー発注と充電輸送に与える影響を調査する.
主な方法:
- 半フッ化アルキルサイドチェーンを含むナフタレン二酸化物ベースのポリマー (PNDIF-T2とPNDIF-TVT) の合成
- 電荷輸送特性を評価するためのフィールド効果トランジスタの製造と特徴付け
- 構造的技術を用いたポリマー上部構造の分析とオーダーリング.
主要な成果:
- 設計された半フッ素化側鎖は,強い自己組織化を誘導し",脊柱結晶"と"側鎖結晶"の上部構造を形成した.
- これはポリマーバックボーン方向に沿ってオーダーを強化しました.
- 単極のnチャネル輸送が達成され,電子の移動性は6.50cmまでで,V{-1}s{-1}であり,オン・オフ電流比は10{-5}である.
結論:
- 半フッ素アルキル側鎖は,自己組織化を促進し,結合ポリマー背骨の順序を高めるのに有効です.
- 開発されたポリマーは,高性能なn型有機フィールドエフェクトトランジスタのための重要な可能性を証明しています.
- この研究は,高流動性n型結合ポリマーを設計するための有望な戦略を提供します.
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