Freezing single molecule dynamics on interfaces and in polymers

Heterogeneous line broadening and spectral diffusion of the fluorescence emission spectra of perylene diimide molecules have been investigated by means of time dependent single molecule spectroscopy. The influence of temperature and environment has been studied and reveals strong correlation to spec...

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Autores principales: Krause, S., Aramendia, P.F., Täuber, D., Von Borczyskowski, C.
Formato: JOUR
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_14639076_v13_n5_p1754_Krause
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Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_14639076_v13_n5_p1754_Krause
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spelling todo:paper_14639076_v13_n5_p1754_Krause2023-10-03T16:16:46Z Freezing single molecule dynamics on interfaces and in polymers Krause, S. Aramendia, P.F. Täuber, D. Von Borczyskowski, C. Heterogeneous line broadening and spectral diffusion of the fluorescence emission spectra of perylene diimide molecules have been investigated by means of time dependent single molecule spectroscopy. The influence of temperature and environment has been studied and reveals strong correlation to spectral diffusion processes. We followed the freezing of the molecular mobility of quasi free molecules on the surface upon temperature lowering and by embedding into a poly(methyl methacrylate) (PMMA) polymer. Thereby changes of optical transition energies as a result of both intramolecular changes of conformation and external induced dynamics by the surrounding polymer matrix could be observed. Simulations of spectral fluctuations within a two-level system (TLS) model showed good agreement with the experimental findings. © the Owner Societies. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_14639076_v13_n5_p1754_Krause
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
description Heterogeneous line broadening and spectral diffusion of the fluorescence emission spectra of perylene diimide molecules have been investigated by means of time dependent single molecule spectroscopy. The influence of temperature and environment has been studied and reveals strong correlation to spectral diffusion processes. We followed the freezing of the molecular mobility of quasi free molecules on the surface upon temperature lowering and by embedding into a poly(methyl methacrylate) (PMMA) polymer. Thereby changes of optical transition energies as a result of both intramolecular changes of conformation and external induced dynamics by the surrounding polymer matrix could be observed. Simulations of spectral fluctuations within a two-level system (TLS) model showed good agreement with the experimental findings. © the Owner Societies.
format JOUR
author Krause, S.
Aramendia, P.F.
Täuber, D.
Von Borczyskowski, C.
spellingShingle Krause, S.
Aramendia, P.F.
Täuber, D.
Von Borczyskowski, C.
Freezing single molecule dynamics on interfaces and in polymers
author_facet Krause, S.
Aramendia, P.F.
Täuber, D.
Von Borczyskowski, C.
author_sort Krause, S.
title Freezing single molecule dynamics on interfaces and in polymers
title_short Freezing single molecule dynamics on interfaces and in polymers
title_full Freezing single molecule dynamics on interfaces and in polymers
title_fullStr Freezing single molecule dynamics on interfaces and in polymers
title_full_unstemmed Freezing single molecule dynamics on interfaces and in polymers
title_sort freezing single molecule dynamics on interfaces and in polymers
url http://hdl.handle.net/20.500.12110/paper_14639076_v13_n5_p1754_Krause
work_keys_str_mv AT krauses freezingsinglemoleculedynamicsoninterfacesandinpolymers
AT aramendiapf freezingsinglemoleculedynamicsoninterfacesandinpolymers
AT tauberd freezingsinglemoleculedynamicsoninterfacesandinpolymers
AT vonborczyskowskic freezingsinglemoleculedynamicsoninterfacesandinpolymers
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