ELECTRONIC EXCITATION TRANSFER IN ORGANIZED MOLECULAR ASSEMBLIES

被引：151

作者：

YAMAZAKI, I

TAMAI, N

YAMAZAKI, T

机构：

[1] Department of Chemical Process Engineering, Faculty of Engineering, Hokkaido University

来源：

JOURNAL OF PHYSICAL CHEMISTRY | 1990年 / 94卷 / 02期

关键词：

D O I：

10.1021/j100365a007

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Dynamics of electronic excitation transfer under restricted molecular geometries was investigated by means of a picosecond time-resolved fluorescence spectrophotometer and was compared among several kinds of molecular assemblies such as vesicles, Langmuir-Blodgett films, and photosynthetic light-harvesting antenna. The form of fluorescence decay curves depends on (1) dimensionality of systems (2-D, 3-D, or stacking multilayers) and (2) distribution of functional chromophores in a supramolecular assembly framework. The fluorescence decay curves of photoexcited donors were analyzed and revealed fractal behaviors with respect to spatial distribution of chromophores or energetically hierarchical structure among different sites with slightly different energy levels. © 1990 American Chemical Society.

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页码：516 / 525

页数：10

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