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Characterizing the functional dynamics of zinc phthalocyanine from femtoseconds to nanoseconds

Paper ID Volume ID Publish Year Pages File Format Full-Text
28721 44087 2008 7 PDF Available
Title
Characterizing the functional dynamics of zinc phthalocyanine from femtoseconds to nanoseconds
Abstract

A promising photosensitizer, zinc phthalocyanine, is investigated by means of steady-state and time-resolved pump-probe spectroscopies. Spectrally resolved pump-probe data are recorded on time scales ranging from femtoseconds to nanoseconds. Global analysis yields the excited-state absorption spectra and lifetimes, as well as the pathways and efficiencies of the competing relaxation processes from the initially excited S1 state. In addition to the expected nanosecond-scale processes of fluorescence, internal conversion and inter-system crossing that follow the generally accepted kinetic scheme, we also resolve ultrafast dynamics. The nature of these fast processes and their implications to the functional pathway involving triplet formation are discussed.

Keywords
Photosensitizer; Ultrafast dynamics; Energy-flow diagram; Triplet yield; Zinc phthalocyanine
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Characterizing the functional dynamics of zinc phthalocyanine from femtoseconds to nanoseconds
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Publisher
Database: Elsevier - ScienceDirect
Journal: Journal of Photochemistry and Photobiology A: Chemistry - Volume 196, Issue 1, 30 April 2008, Pages 99–105
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us