An activated scheme for resonance energy transfer in conjugated materials

Koese M. E.

JOURNAL OF CHEMICAL PHYSICS, cilt.135, sa.24, 2011 (SCI-Expanded) identifier identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 135 Sayı: 24
  • Basım Tarihi: 2011
  • Doi Numarası: 10.1063/1.3673962
  • Dergi Adı: JOURNAL OF CHEMICAL PHYSICS
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Kocaeli Üniversitesi Adresli: Hayır

Özet

Energy transfer mechanism in conjugated materials has been demonstrated with an activated expression, which is equivalent to Fermi's golden rule. Spectral overlap integrals obtained from simulated spectra of model chromophores agree very well with the results obtained with the activated formula. Although this approach works best for chromophores with spectral profiles resembling a Gaussian distribution, the activated expression formula also performs quite well for chromophores with vibronically resolved spectra. Activation energies for exciton hopping can also be predicted using a phonon coupled exciton relaxation scheme. The accuracy of predictions with this new approach is quite attractive and hence should allow practical applications. (C) 2011 American Institute of Physics. [doi: 10.1063/1.3673962]