ポリマーを含むチアディアゾロキノキノキサリン-アセチレンを,アンビポーラフィールド効果トランジスタの半導体として使用する
Timea Dallos1, Dirk Beckmann, Gunther Brunklaus
1Max Planck Institute for Polymer Research, Mainz, Germany.
Journal of the American Chemical Society
|August 13, 2011
まとめ
研究者らは,チアジアゾロキノキサリンとチオフェン単位を含む新しい結合コポリマー,PPTQTとPTTQTを開発しました. PPTQTは両極性半導体特性を実証し,ポリマー電子学の画期的な進歩を示しています.
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:
- 結合ポリマーは,有機電子機器にとって極めて重要です.
- バランスのとれた電荷輸送 (両極性) を有する材料の開発は,重要な課題です.
- エチニレンなどの硬いπ-spacerを組み込むことは,ポリマーの電子特性に影響を与える可能性があります.
研究 の 目的:
- チアジアゾロキノキサリンとチオフェン単位を含む新しい結合コポリマーを合成し,特徴づけること.
- これらの新しい材料の電子特性,特に電荷キャリアの移動性を調査する.
- ポリマーバックボーン内の三重結合の潜在能力を探求し,両極性半導体行動を達成するために.
主な方法:
- 2つの結合コポリマー:PPTQTとPTTQTの合成.
- エチニレン π-スペースを使用して,チアジアゾロキノサリンとチオフェンの部分を結ぶ.
- 荷载体運動性 (穴と電子) を含む材料の性質の特徴.
主要な成果:
- PPTQTとPTTQT共ポリマーの合成に成功しました.
- PPTQTは最大0.028cm2/Vsの穴移動性と0.042cm2/Vsの電子移動性を示した.
- PPTQTは,ポリマーバックボーンに三重結合を持つ最初の二極半導体材料を表しています.
結論:
- 開発されたチアジアゾロキノクサリン基共ポリマーは,有望な半導体特性を示しています.
- エチニレンπ-スペーサーとトリプルボンドの組み込みは,両極電荷輸送を達成するのに有効です.
- これらの材料は,先進的な有機電子機器における応用の可能性を秘めています.
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