結合有機金属ポリマーネットワークにおける高電荷キャリアの移動性
Akshay Kokil1, Irina Shiyanovskaya, Kenneth D Singer
1Department of Macromolecular Science and Engineering, Case Western Reserve University, Cleveland, Ohio 44106-7202, USA.
Journal of the American Chemical Society
|August 22, 2002
まとめ
結合ポリマーに結合クロスリンクを導入することで,電荷輸送が著しく促進されます. 新しいプラチナを含むポリマーネットワークは,記録的に高いキャリアモビリティを示し,有機電子学の研究を進めています.
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:
- 結合ポリマーにおける電荷輸送は,有機電子機器にとって極めて重要です.
- これらの材料におけるキャリア・モビリティの改善は,依然として重要な研究課題である.
研究 の 目的:
- 強化された電荷輸送特性を持つ新しい有機金属ポリマーネットワークを合成する.
- 結合クロスリンクがポリマーのキャリアモビリティに与える影響を調査する.
主な方法:
- プラチナ (Pt0) を用いたポリエチニレン (PPE) デリバティブベースのポリマーネットワークの合成.
- 線形PPEと低分子Pt複合体の間のリガンド交換反応.
- 充電キャリアの移動性を決定するための飛行時間測定.
主要な成果:
- 達成された両極電荷キャリアの移動性は,最大で1.6 x 10^-2 cm^2 V^-1 s^-1.1までです.
- モビリティは整ったポリマーのモビリティよりも数倍高い.
- これまでのところ,無秩序結合ポリマーで観測された最も高い流動性を表しています.
結論:
- 結合クロスリンクの導入は,結合ポリマーのキャリアモビリティを大幅に高めます.
- Pt0を含む新しいポリマーネットワークは,優れた電荷輸送能力を示しています.
- これらの発見は,先進的な有機電子材料の道を開く.
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