Bitte benutzen Sie diese Referenz, um auf diese Ressource zu verweisen: doi:10.22028/D291-24066
Titel: Optical properties of an electron bound to a double well potential in a dielectric
Verfasser: Aegerter, Michel A.
Lüty, Fritz W.
Sprache: Englisch
Erscheinungsjahr: 1970
Quelle: Proceedings of the International Conference on Luminescence : held at the Univ. of Delaware, Newark, aug. 25-29, 1969 / ed. Ferd Williams. - Amsterdam : North-Holland, 1970. - (Journal of luminescence ; 1/2), S. 624-632
SWD-Schlagwörter: Absorption
Emission
Oszillator
DDC-Sachgruppe: 500 Naturwissenschaften
Dokumentart : InProceedings (Aufsatz / Paper einer Konferenz etc.)
Kurzfassung: The absorption and emission properties of F2+ center in KCl (2 adjacent anion vacancies which bind 1 electron) were investigated between 0.6 and 5 eV by using an optically aligned center system. Energy positions, level degeneracies, polarization behavior and oscillator strengths of 8 absorption transitions were found in close agreement to the calculated states of the H2+ molecular ion corrected for a single dielectric constant and the proper separation between the 2 effective positive charges. Excitation of the lowest 2póu state at 1.38 ì leads with temperature independent quantum efficiency to a Stokes shifted emission at 1.67 ì almost in mirror symmetry with the zero phonon line at 1.5260 ì. Excitation of all higher absorption transitions (2pðu, etc.) at liquid helium temperature (LHeT) produces a visible luminescence at 600 nm. At higher temperature a thermally activated process (activation energy ÄE = 0.063 eV) transfers the excitation energy to the lowest excited state 2póu quenching the 600-nm luminescence and producing the IR emission.
Link zu diesem Datensatz: urn:nbn:de:bsz:291-scidok-22109
hdl:20.500.11880/24122
http://dx.doi.org/10.22028/D291-24066
SciDok-Publikation: 7-Jul-2009
Fakultät: Sonstige Einrichtungen
Fachrichtung: SE - INM Leibniz-Institut für Neue Materialien
Fakultät / Institution:INM
SE - Sonstige Einrichtungen

Dateien zu dieser Ressource:
Datei Beschreibung GrößeFormat 
aeg010.pdf477,95 kBAdobe PDFÖffnen/Anzeigen


Alle Ressourcen in diesem Repository sind urheberrechtlich geschützt.