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dc.contributor.author
Rodriguez, Hernan Bernardo  
dc.contributor.author
San Roman, Enrique Arnoldo  
dc.date.available
2016-04-08T21:29:25Z  
dc.date.issued
2013-11  
dc.identifier.citation
Rodriguez, Hernan Bernardo; San Roman, Enrique Arnoldo; Effect of Concentration on the Photophysics of Dyes in Light-Scattering Materials; Wiley; Photochemistry And Photobiology; 89; 6; 11-2013; 1273-1282  
dc.identifier.issn
0031-8655  
dc.identifier.uri
http://hdl.handle.net/11336/5104  
dc.description.abstract
Photoactive materials based on dye molecules incorporated into thin films or bulk solids are useful for applications as photosensitization, photocatalysis, solar cell sensitization and fluorescent labeling, among others. In most cases, high concentrations of dyes are desirable to maximize light absorption. Under these circumstances, the proximity of dye molecules leads to the formation of aggregates and statistical traps, which dissipate the excitation energy and lower the population of excited states. The search for enhancement of light collection, avoiding energy wasting requires accounting the photophysical parameters quantitatively, including the determination of quantum yields, complicated by the presence of light scattering when particulate materials are considered. In this work we summarize recent advances on the photophysics of dyes in light-scattering materials, with particular focus on the effect of dye concentration. We show how experimental reflectance, fluorescence and laser-induced optoacoustic spectroscopy data can be used together with theoretical models for the quantitative evaluation of inner filter effects, fluorescence and triplet formation quantum yields and energy transfer efficiencies.  
dc.format
application/pdf  
dc.language.iso
eng  
dc.publisher
Wiley  
dc.rights
info:eu-repo/semantics/openAccess  
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/  
dc.subject
Fotoquímica  
dc.subject
Sistemas Heterogéneos  
dc.subject
Transferencia de Energía  
dc.subject
Agregación Molecular  
dc.subject.classification
Físico-Química, Ciencia de los Polímeros, Electroquímica  
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Ciencias Químicas  
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CIENCIAS NATURALES Y EXACTAS  
dc.title
Effect of Concentration on the Photophysics of Dyes in Light-Scattering Materials  
dc.type
info:eu-repo/semantics/article  
dc.type
info:ar-repo/semantics/artículo  
dc.type
info:eu-repo/semantics/publishedVersion  
dc.date.updated
2016-05-06 15:52:43.262787-03  
dc.journal.volume
89  
dc.journal.number
6  
dc.journal.pagination
1273-1282  
dc.journal.pais
Reino Unido  
dc.journal.ciudad
Londres  
dc.description.fil
Fil: Rodriguez, Hernan Bernardo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico la Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; Argentina. Universidad Nacional de La Plata; Argentina  
dc.description.fil
Fil: San Roman, Enrique Arnoldo. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Química, Física de Los Materiales, Medioambiente y Energía; Argentina. Universidad de Buenos Aires; Argentina  
dc.journal.title
Photochemistry And Photobiology  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/pmid/23735010  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://onlinelibrary.wiley.com/doi/10.1111/php.12107/abstract  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1111/php.12107  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/10.1111/php.12107