Literatur vom gleichen Autor/der gleichen Autor*in
plus bei Google Scholar

Bibliografische Daten exportieren
 

Impurity Spectroscopy at Its Ultimate Limit : Relation between Bulk Spectrum, Inhomogeneous Broadening, and Local Disorder by Spectroscopy of (Nearly) All Individual Dopant Molecules in Solids

Titelangaben

Naumov, Andrei V. ; Gorshelev, Aleksey A. ; Vainer, Yuri G. ; Kador, Lothar ; Köhler, Jürgen:
Impurity Spectroscopy at Its Ultimate Limit : Relation between Bulk Spectrum, Inhomogeneous Broadening, and Local Disorder by Spectroscopy of (Nearly) All Individual Dopant Molecules in Solids.
In: Physical Chemistry Chemical Physics. Bd. 13 (2011) Heft 5 . - S. 1734-1742.
ISSN 1463-9084
DOI: https://doi.org/10.1039/C0CP01689F

Volltext

Link zum Volltext (externe URL): Volltext

Abstract

We present a technique for the measurement of the low-temperature fluorescence excitation spectra and imaging of a substantial fraction of all single chromophore molecules (hundreds of thousands and even more) embedded in solid bulk samples as nanometre-sized probes. An important feature of our experimental studies is that the full information about the lateral coordinates and spectral parameters of all individual molecules is stored for detailed analysis. This method enables us to study a bulk sample in a broad spectral region with ultimate sensitivity, combining excellent statistical accuracy and the capability of detecting rare events. From the raw data we determined the distributions of several parameters of the chromophore spectra and their variations across the inhomogeneous absorption band, including the frequencies of the electronic zero-phonon lines, their spectral linewidths, and fluorescence count rates. Relationships between these distributions and the disorder of the matrix were established for the examples of two polycrystalline solids with very different properties, n-hexadecane and o-dichlorobenzene, and the amorphous polymer polyisobutylene. We also found spatially inhomogeneous distributions of some parameters.

Weitere Angaben

Publikationsform: Artikel in einer Zeitschrift
Begutachteter Beitrag: Ja
Institutionen der Universität: Fakultäten
Fakultäten > Fakultät für Mathematik, Physik und Informatik
Fakultäten > Fakultät für Mathematik, Physik und Informatik > Physikalisches Institut
Forschungseinrichtungen > Forschungszentren > Bayreuther Institut für Makromolekülforschung - BIMF
Forschungseinrichtungen
Forschungseinrichtungen > Forschungszentren
Titel an der UBT entstanden: Ja
Themengebiete aus DDC: 500 Naturwissenschaften und Mathematik
500 Naturwissenschaften und Mathematik > 500 Naturwissenschaften
500 Naturwissenschaften und Mathematik > 530 Physik
Eingestellt am: 26 Mär 2015 16:48
Letzte Änderung: 09 Sep 2020 04:55
URI: https://eref.uni-bayreuth.de/id/eprint/8645