Triplet Yield of Merocyanine 540 in Water Is Wavelength Dependent

Seret, Alain; Hoebeke, Maryse; Van de Vorst, Albert

doi:10.1111/j.1751-1097.1990.tb01805.x

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Article (Scientific journals)

Triplet Yield of Merocyanine 540 in Water Is Wavelength Dependent

Seret, Alain; Hoebeke, Maryse; Van de Vorst, Albert

1990 • In Photochemistry and Photobiology, 52 (3), p. 601-604

Peer Reviewed verified by ORBi

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https://hdl.handle.net/2268/3099

DOI
10.1111/j.1751-1097.1990.tb01805.x

PubMed
2284351

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Keywords :

Merocyanine 540; MC540; Aqueous solutions; First singlet state; Quantum Yield; Visible light; UV light; Isomerization

Abstract :

[en] Monomers and aggregates of Merocyanine 540 (MC540) in water are able to photoisomerize. The shape of the photoisomer absorption spectrum is very similar to that of the ground state. Triplet state of MC540 in water has been produced by energy transfer from triplet anthracene and displays a broad absorption spectrum between 600 and 700 nm. The triplet state may also be produced by direct excitation of MC540 with UV light. However, when the dye is excited by visible light, no triplet state absorbance in the red could be detected so that the triplet yield of MC540 in water seems to be excitation wavelength dependent.

Disciplines :

Chemistry
Physics

Author, co-author :

Seret, Alain ; Université de Liège - ULiège > Physique Expérimentale

Hoebeke, Maryse ; Université de Liège - ULiège > Physique Expérimentale

Van de Vorst, Albert; Université de Liège - ULiège > Physique Expérimentale

Language :

English

Title :

Triplet Yield of Merocyanine 540 in Water Is Wavelength Dependent

Publication date :

September 1990

Journal title :

Photochemistry and Photobiology

ISSN :

0031-8655

Publisher :

Pergamon Press, United Kingdom

Volume :

Issue :

Pages :

601-604

Peer reviewed :

Peer Reviewed verified by ORBi

Additional URL :

http://www3.interscience.wiley.com/journal/119997975/abstract

Available on ORBi :

since 29 December 2008

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Bibliography

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