Excitons versus unbound electron-hole pairs and their influence on exciton bleaching: a model study

Physical Review B - Condensed Matter and Materials Physics

Volumn 59, Issue 20, 1999, Pages 13202-13208

  Meier, T ^a   Koch, S W ^a  

^a PHILIPPS UNIVERSITY MARBURG   (Germany)

Author keywords

[No Author keywords available]

Indexed keywords

EID: 0000182837     PISSN: 10980121     EISSN: 1550235X     Source Type: Journal    
DOI: 10.1103/PhysRevB.59.13202     Document Type: Article

References (27)

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19. It should be noted that already for 10 sites the numerical integration of Eq. (9) is quite demanding, since it consists, apart from the band indices, of (Formula presented) real-space components. Thus in a time-step solution of Eq. (9) as is performed here (Formula presented) differential equations have to be evaluated and integrated in each time-step. The calculation of one differential absorption spectrum takes about one day for one Digital Equipment Alpha work station with a 600 MHz processor.
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21. Similar correlation-induced line shapes in the differential absorption spectra induced by thermalized excitons, i.e., bleaching at the exciton resonance and excited-state absorption due to the presence of two excitons were also calculated recently for aggregates of Frenkel excitons, see, e.g., Ref. 19.
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