Photophysical Processes of Polymethlne Dyes
- Autores
- Bilmes, Gabriel Mario; Tocho, Jorge Omar; Braslavsky, Silvia E.
- Año de publicación
- 1989
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión enviada
- Descripción
- Laser Hash photolysis, laser induced optoacoustic spectroscopy (LIOAS), and fluorescence data were used for the study of the photophysical deactivation processes of excited 3,3 diethylthiadicarbocyanine iodide (DTDCI). Direct excitation of this molecule in air saturated methanol solutions at room temperature results in the formation of only one transient species, a photoisomer, the spectrum of which was derived for the 600-680 nm spectral range. The energy content difference between the ground state of the stable form and that of the photoisomer was evaluated, $latex \Delta E = 0.15 \pm 0.15 \enspace eV$, as well as limit values for the photoisomer fluorescence quantum efficiency $latex(\Phi _{f} ^{P}) < 0.2$ and for the quantum yield for the back photoisomerization from the first excited singlet state of the photoisomer to the ground state of the stable form $latex(\Phi _{PN}\leq 0.14)$.
- Materia
-
Ciencias Físicas
laser hash photolysis
laser induced optoacoustic spectroscopy
fluorescence data
ground state
stable form
photoisomer fluorescence quantum efficiency - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- http://creativecommons.org/licenses/by/4.0/
- Repositorio
- Institución
- Comisión de Investigaciones Científicas de la Provincia de Buenos Aires
- OAI Identificador
- oai:digital.cic.gba.gob.ar:11746/498
Ver los metadatos del registro completo
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spelling |
Photophysical Processes of Polymethlne DyesBilmes, Gabriel MarioTocho, Jorge OmarBraslavsky, Silvia E.Ciencias Físicaslaser hash photolysislaser induced optoacoustic spectroscopyfluorescence dataground statestable formphotoisomer fluorescence quantum efficiencyLaser Hash photolysis, laser induced optoacoustic spectroscopy (LIOAS), and fluorescence data were used for the study of the photophysical deactivation processes of excited 3,3 diethylthiadicarbocyanine iodide (DTDCI). Direct excitation of this molecule in air saturated methanol solutions at room temperature results in the formation of only one transient species, a photoisomer, the spectrum of which was derived for the 600-680 nm spectral range. The energy content difference between the ground state of the stable form and that of the photoisomer was evaluated, $latex \Delta E = 0.15 \pm 0.15 \enspace eV$, as well as limit values for the photoisomer fluorescence quantum efficiency $latex(\Phi _{f} ^{P}) < 0.2$ and for the quantum yield for the back photoisomerization from the first excited singlet state of the photoisomer to the ground state of the stable form $latex(\Phi _{PN}\leq 0.14)$.Centro de Investigaciones Ópticas (CIOP)1989info:eu-repo/semantics/articleinfo:eu-repo/semantics/submittedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttps://digital.cic.gba.gob.ar/handle/11746/498enghttp://digital.cic.gba.gob.ar/handle/123456789/68info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by/4.0/reponame:CIC Digital (CICBA)instname:Comisión de Investigaciones Científicas de la Provincia de Buenos Airesinstacron:CICBA2025-09-29T13:40:23Zoai:digital.cic.gba.gob.ar:11746/498Institucionalhttp://digital.cic.gba.gob.arOrganismo científico-tecnológicoNo correspondehttp://digital.cic.gba.gob.ar/oai/snrdmarisa.degiusti@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:94412025-09-29 13:40:23.447CIC Digital (CICBA) - Comisión de Investigaciones Científicas de la Provincia de Buenos Airesfalse |
dc.title.none.fl_str_mv |
Photophysical Processes of Polymethlne Dyes |
title |
Photophysical Processes of Polymethlne Dyes |
spellingShingle |
Photophysical Processes of Polymethlne Dyes Bilmes, Gabriel Mario Ciencias Físicas laser hash photolysis laser induced optoacoustic spectroscopy fluorescence data ground state stable form photoisomer fluorescence quantum efficiency |
title_short |
Photophysical Processes of Polymethlne Dyes |
title_full |
Photophysical Processes of Polymethlne Dyes |
title_fullStr |
Photophysical Processes of Polymethlne Dyes |
title_full_unstemmed |
Photophysical Processes of Polymethlne Dyes |
title_sort |
Photophysical Processes of Polymethlne Dyes |
dc.creator.none.fl_str_mv |
Bilmes, Gabriel Mario Tocho, Jorge Omar Braslavsky, Silvia E. |
author |
Bilmes, Gabriel Mario |
author_facet |
Bilmes, Gabriel Mario Tocho, Jorge Omar Braslavsky, Silvia E. |
author_role |
author |
author2 |
Tocho, Jorge Omar Braslavsky, Silvia E. |
author2_role |
author author |
dc.subject.none.fl_str_mv |
Ciencias Físicas laser hash photolysis laser induced optoacoustic spectroscopy fluorescence data ground state stable form photoisomer fluorescence quantum efficiency |
topic |
Ciencias Físicas laser hash photolysis laser induced optoacoustic spectroscopy fluorescence data ground state stable form photoisomer fluorescence quantum efficiency |
dc.description.none.fl_txt_mv |
Laser Hash photolysis, laser induced optoacoustic spectroscopy (LIOAS), and fluorescence data were used for the study of the photophysical deactivation processes of excited 3,3 diethylthiadicarbocyanine iodide (DTDCI). Direct excitation of this molecule in air saturated methanol solutions at room temperature results in the formation of only one transient species, a photoisomer, the spectrum of which was derived for the 600-680 nm spectral range. The energy content difference between the ground state of the stable form and that of the photoisomer was evaluated, $latex \Delta E = 0.15 \pm 0.15 \enspace eV$, as well as limit values for the photoisomer fluorescence quantum efficiency $latex(\Phi _{f} ^{P}) < 0.2$ and for the quantum yield for the back photoisomerization from the first excited singlet state of the photoisomer to the ground state of the stable form $latex(\Phi _{PN}\leq 0.14)$. |
description |
Laser Hash photolysis, laser induced optoacoustic spectroscopy (LIOAS), and fluorescence data were used for the study of the photophysical deactivation processes of excited 3,3 diethylthiadicarbocyanine iodide (DTDCI). Direct excitation of this molecule in air saturated methanol solutions at room temperature results in the formation of only one transient species, a photoisomer, the spectrum of which was derived for the 600-680 nm spectral range. The energy content difference between the ground state of the stable form and that of the photoisomer was evaluated, $latex \Delta E = 0.15 \pm 0.15 \enspace eV$, as well as limit values for the photoisomer fluorescence quantum efficiency $latex(\Phi _{f} ^{P}) < 0.2$ and for the quantum yield for the back photoisomerization from the first excited singlet state of the photoisomer to the ground state of the stable form $latex(\Phi _{PN}\leq 0.14)$. |
publishDate |
1989 |
dc.date.none.fl_str_mv |
1989 |
dc.type.none.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/submittedVersion http://purl.org/coar/resource_type/c_6501 info:ar-repo/semantics/articulo |
format |
article |
status_str |
submittedVersion |
dc.identifier.none.fl_str_mv |
https://digital.cic.gba.gob.ar/handle/11746/498 |
url |
https://digital.cic.gba.gob.ar/handle/11746/498 |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
http://digital.cic.gba.gob.ar/handle/123456789/68 |
dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/4.0/ |
eu_rights_str_mv |
openAccess |
rights_invalid_str_mv |
http://creativecommons.org/licenses/by/4.0/ |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Centro de Investigaciones Ópticas (CIOP) |
publisher.none.fl_str_mv |
Centro de Investigaciones Ópticas (CIOP) |
dc.source.none.fl_str_mv |
reponame:CIC Digital (CICBA) instname:Comisión de Investigaciones Científicas de la Provincia de Buenos Aires instacron:CICBA |
reponame_str |
CIC Digital (CICBA) |
collection |
CIC Digital (CICBA) |
instname_str |
Comisión de Investigaciones Científicas de la Provincia de Buenos Aires |
instacron_str |
CICBA |
institution |
CICBA |
repository.name.fl_str_mv |
CIC Digital (CICBA) - Comisión de Investigaciones Científicas de la Provincia de Buenos Aires |
repository.mail.fl_str_mv |
marisa.degiusti@sedici.unlp.edu.ar |
_version_ |
1844618621442064384 |
score |
13.070432 |