A general density-matrix formulation is derived in a way suitable for the analysis of optical and magnetic effects due to the triplet-exciton kinetics in molecular crystals, in the presence of a microwave field inducing transitions among the spin levels. The expansion of the density matrix as a power series of the microwave field intensity provides a hierarchy of systems of equations, the knowledge of higher-order corrections requiring the solutions of all lower-order terms. The solutions of the zeroth-, first- and second-order equations are relevant for the calculation of polarization and delayed fluorescence effects. ESR lineshapes and DF ODMR spectral profiles, respectively.

Phenomenological representation of triplet-exciton kinetics

FERRARINI, ALBERTA;SEGRE, ULDERICO;MORO, GIORGIO;NORDIO, PIER LUIGI
1985

Abstract

A general density-matrix formulation is derived in a way suitable for the analysis of optical and magnetic effects due to the triplet-exciton kinetics in molecular crystals, in the presence of a microwave field inducing transitions among the spin levels. The expansion of the density matrix as a power series of the microwave field intensity provides a hierarchy of systems of equations, the knowledge of higher-order corrections requiring the solutions of all lower-order terms. The solutions of the zeroth-, first- and second-order equations are relevant for the calculation of polarization and delayed fluorescence effects. ESR lineshapes and DF ODMR spectral profiles, respectively.
File in questo prodotto:
Non ci sono file associati a questo prodotto.
Pubblicazioni consigliate

Caricamento pubblicazioni consigliate

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11577/2485698
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 3
  • ???jsp.display-item.citation.isi??? 5
social impact