Effect of aggregation on the excited-state electronic structure of perylene studied by transient absorption spectroscopy

被引：57

作者：

Furube, Akihiro ^{[1
]}

Murai, Miki ^{[1
]}

Tamaki, Yoshiaki ^{[1
]}

Watanabe, Sadayuki ^{[1
]}

Katoh, Ryuzi ^{[1
]}

机构：

[1] Natl Inst Adv Ind Sci & Technol AIST, Tsukuba, Ibaraki 3058565, Japan

来源：

JOURNAL OF PHYSICAL CHEMISTRY A | 2006年 / 110卷 / 20期

关键词：

D O I：

10.1021/jp060649b

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：

The effect of aggregation on the excited-state electronic structure of perylene was studied through transient absorption measurements of isolated molecules, excimers, monomeric crystals (beta-perylene), and dimeric crystals ( alpha-perylene). Changes of electronic state were clearly identified from the changes in transient absorption spectra. A detailed investigation was made by combining the obtained results with previous measurements of ground-state absorption and fluorescence spectra. The energy level of the ion-pair state in alpha-perylene crystals was estimated, and the results are compared with previous photoconductivity results. Moreover, the relaxation processes of excited states in alpha-perylene crystals were studied by femtosecond transient absorption measurements.

引用

页码：6465 / 6471

页数：7

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