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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Detalles Bibliográficos
Publicado: 2011
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_14639076_v13_n5_p1754_Krause
http://hdl.handle.net/20.500.12110/paper_14639076_v13_n5_p1754_Krause
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id paper:paper_14639076_v13_n5_p1754_Krause
record_format dspace
spelling paper:paper_14639076_v13_n5_p1754_Krause2023-06-08T16:16:24Z 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 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. 2011 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_14639076_v13_n5_p1754_Krause 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.
title Freezing single molecule dynamics on interfaces and in polymers
spellingShingle 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
publishDate 2011
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_14639076_v13_n5_p1754_Krause
http://hdl.handle.net/20.500.12110/paper_14639076_v13_n5_p1754_Krause
_version_ 1768542856262189056

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