共轭聚合物的单分子光谱学

Single-molecule spectroscopy of conjugated polymers.

作者信息

Barbara Paul F, Gesquiere Andre J, Park So-Jung, Lee Young Jong

机构信息

Center for Nano- and Molecular Science and Technology and Department of Chemistry and Biochemistry, University of Texas at Austin, Austin, Texas 78712, USA.

出版信息

Acc Chem Res. 2005 Jul;38(7):602-10. doi: 10.1021/ar040141w.

DOI:10.1021/ar040141w

PMID:16028895

Abstract

The molecular structure, photochemistry, and device physics of conjugated polymers have been investigated by single-molecule spectroscopy (SMS), using the unique ability of this technique to unravel complex spectra and dynamics. Surprisingly efficient and directional electronic energy funneling was observed for conjugated polymer molecules due to highly ordered conformations. Furthermore, recent studies on the SMS of conjugated polymers embedded in electronic devices demonstrate that SMS is a powerful tool for studying the photophysics and charge-transfer processes of conjugated polymers, giving new insights into the complex interactions among excited and charged species that exist in a device environment.

摘要

共轭聚合物的分子结构、光化学和器件物理已通过单分子光谱法（SMS）进行了研究，利用该技术解析复杂光谱和动力学的独特能力。由于高度有序的构象，在共轭聚合物分子中观察到了惊人高效且定向的电子能量漏斗效应。此外，最近对嵌入电子器件中的共轭聚合物的单分子光谱研究表明，单分子光谱是研究共轭聚合物光物理和电荷转移过程的有力工具，为深入了解器件环境中激发态和带电物种之间的复杂相互作用提供了新的见解。