Exciton-scaling and optical excitations of self-similar phenylacetylene dendrimers

Evgeni Y. Poliakov, Vladimir Chernyak, Sergei Tretiak, Shaul Mukamel

Research output: Contribution to journalArticlepeer-review

95 Citations (Scopus)

Abstract

The collective electronic oscillators method is used to construct an effective Frenkel exciton Hamiltonian for conjugated dendrimers with fractal geometry. Self-similarity and the high degree of symmetry utilized by decomposing the space of optical excitations into irreducible representations make it possible to compute the one-exciton states and the linear optical response with reduced numerical effort that scales linearly rather than exponentially with the number of generations. The linear optical response is dominated by localized excitons belonging to the periphery.

Original languageEnglish
Pages (from-to)8161-8175
Number of pages15
JournalJournal of Chemical Physics
Volume110
Issue number16
DOIs
Publication statusPublished - 22 Apr 1999
Externally publishedYes

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