Effect of Aggregation on the Excited-State Electronic Structure of Perylene Studied by Transient Absorption Spectroscopy

Effect of Aggregation on the Excited-State Electronic Structure of Perylene Studied by Transient Absorption Spectroscopy

The effect of aggregation on the excited-state electronic structure of perylene was studied through transient absorption measurements of isolated molecules, excimers, monomeric crystals (β-perylene), and dimeric crystals (α-perylene). Changes of electronic state were clearly identified from the chan...

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Veröffentlicht in:The journal of physical chemistry. A, Molecules, spectroscopy, kinetics, environment, & general theory Molecules, spectroscopy, kinetics, environment, & general theory, 2006-05, Vol.110 (20), p.6465-6471
Hauptverfasser: Furube, Akihiro, Murai, Miki, Tamaki, Yoshiaki, Watanabe, Sadayuki, Katoh, Ryuzi
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container_title The journal of physical chemistry. A, Molecules, spectroscopy, kinetics, environment, & general theory
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creator Furube, Akihiro
Murai, Miki
Tamaki, Yoshiaki
Watanabe, Sadayuki
Katoh, Ryuzi
description The effect of aggregation on the excited-state electronic structure of perylene was studied through transient absorption measurements of isolated molecules, excimers, monomeric crystals (β-perylene), and dimeric crystals (α-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 α-perylene crystals was estimated, and the results are compared with previous photoconductivity results. Moreover, the relaxation processes of excited states in α-perylene crystals were studied by femtosecond transient absorption measurements.
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title Effect of Aggregation on the Excited-State Electronic Structure of Perylene Studied by Transient Absorption Spectroscopy
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