高導電性を有する非結合基ポリマーガラス
Yongho Joo1, Varad Agarkar2, Seung Hyun Sung1
1Charles D. Davidson School of Chemical Engineering, 480 Stadium Mall Drive, Purdue University, West Lafayette, IN 47906, USA.
Science (New York, N.Y.)
|March 24, 2018
まとめ
研究者はドーピングなしで高い電気伝導性を達成する 新しい非結合基ポリマーを開発しました この突破は,よりシンプルな合成と高度な電子アプリケーションのための改善された材料特性を提供します.
科学分野:
- 材料科学
- ポリマー化学
- 固体電子
背景:
- 従来の固体伝導ポリマーは,結合された脊髄とドーピングに導電性に依存しています.
- よりシンプルで安定した,処理可能な単一成分の導電マクロモレキュールが必要である.
- 非結合ポリマーは通常,電気伝導性が低い.
研究 の 目的:
- 新しい非結合基ポリマーの 電気的性質を調査する
- 単一構成要素の電荷中性マクロ分子における電荷輸送メカニズムを探求する.
- ドーピングなしの伝導材料としてのラジカルポリマーの可能性を評価する.
主な方法:
- 非結合基ポリマーであるポリー ((4-glycidyloxy-2,2,6,6-tetramethylpiperidine-1-oxyl) の合成
- 熱アニリングを用いた薄膜の電気伝導性の特徴化.
- 熱処理とチャネルの長さによる伝導性の評価
主要な成果:
- 固体電荷移転反応が 急速に行われました
- 80°Cでの熱解熱後,0.6マイクロメートルのチャネルで電気伝導度は28シーメンに達した.
- 導電性は意図的なドーピングによって改善されず,フィルムは高い光学透明性を維持した.
結論:
- 熱アニリングは,非結合型ラジカルポリマーで,ラジカルサイトの浸透ネットワークを形成することによって,電荷輸送を可能にする.
- シングルコンポーネントの 充電中性ラジカルポリマーは 従来のドープされた導電性ポリマーに有望な代替品です
- これらの材料は,電子機器の合成を簡素化し,処理能力を向上させ,環境の安定性を高める機会を提供します.
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