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Excitation energy relaxation of rhodamine B in Langmuir-Blodgett monolayer films: Picosecond time-resolved fluorescence studies

Authors
Journal
Chemical Physics Letters
0009-2614
Publisher
Elsevier
Publication Date
Volume
147
Issue
1
Identifiers
DOI: 10.1016/0009-2614(88)80217-3

Abstract

Abstract Excitation energy relaxation of N,N′-dioctadecylrhodamine B incorporated in Langmuir-Blodgett monolayers has been studied with a picosecond time-resolved fluorescence spectrophotometer. Relaxation of singlet excitation energy in a monomolecular layer was interpreted in terms of (1) energy migration among different sites with a fractal-like distribution which are energetically or spatially disordered and (2) energy trapping by higher aggregates.

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