ペンタセンの薄膜の成長の動態
F J Meyer zu Heringdorf1, M C Reuter, R M Tromp
1IBM T.J. Watson Research Center, Yorktown Heights, New York 10598, USA. meyerzh@us.ibm.com
Nature
|August 3, 2001
まとめ
研究者らは,有機光電子機器のための大粒ペンタセンの薄膜を開発した. この突破は,無機結晶の成長原理を模倣することによって,実用的で高性能な有機電子機器の開発を進めています.
科学分野:
- オーガニック・エレクトロニクス
- マテリアルサイエンス 材料科学
- 薄膜の沈着による薄膜沈着です.
背景:
- 単結晶有機光電子装置は有望ですが,実用的なアプリケーションには,様々な基板に費用対効果の高い有機フィルムが必要です.
- 現在の有機薄膜は単一結晶の好ましい物理的性質を欠くし,その成長原理は十分に理解されていない.
研究 の 目的:
- ペンタセンの薄膜の in situ 進化を調査する.
- デバイスアプリケーションのための有機薄膜の成長と結晶化を理解し,制御する.
主な方法:
- ペンタセンの薄膜進化をリアルタイムで画像化するために,in situ光電子放射顕微鏡を用いた.
- 薄膜の成長に影響を与えるために,慎重に基板の準備と表面エネルギー制御を採用しました.
主要な成果:
- ペンタセンの薄膜で0.1mmに近づく単結晶粒子の大きさを達成し,以前の成果よりも20〜100倍増加しました.
- 成人フィルムは,完全な有機電子機器を完全に包み込むのに十分な大きさでした.
- 有機薄膜の成長は,無機材料の表軸成長に非常に似ていることが観察されました.
結論:
- 無機の表軸増殖のための戦略は,分子薄膜装置の最適化を導くことができます.
- 大粒単結晶有機フィルムを育成する能力は,実用的な有機光電子技術の進歩に不可欠です.
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