Development of the energy flow in light-harvesting dendrimers

David L Andrews, Shaopeng Li, Justo Rodriguez, Jo Slota

Research output: Contribution to journalArticlepeer-review

19 Citations (Scopus)

Abstract

Modeling the multistep flow of energy in light-harvesting dendrimers presents a considerable challenge. Recent studies have introduced an operator approach based on a matrix representation of the connectivity between constituent chromophores. Following a review of the theory, detailed applications are now shown to exhibit the time development of the core excitation following pulsed laser irradiation and the steady-state behavior that can be expected under conditions of constant illumination. It is also shown how energy capture by whole dendrimers can be analytically related to chromophore pair-transfer properties and, in particular, the spectroscopic gradient toward the core. Indicative calculations also illustrate the consequences of tertiary folding. In each respect, the model affords opportunities to derive new, physically meaningful information on the photophysical and structural features of dendrimeric systems.
Original languageEnglish
Pages (from-to)134902
Number of pages1
JournalThe Journal of Chemical Physics
Volume127
Issue number13
DOIs
Publication statusPublished - 3 Oct 2007

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