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Volumn 129, Issue 27, 2007, Pages 8585-8593

Three-dimensional energy transport in highly luminescent host-guest crystals: A quantitative experimental and theoretical study

Author keywords

[No Author keywords available]

Indexed keywords

ACCEPTOR MOLECULES; ENERGY MIGRATION; HOST-GUEST CRYSTALS; LUMINESCENT PROPERTIES; TIME-RESOLVED FLUORESCENCE SPECTROSCOPY;

EID: 34447508146     PISSN: 00027863     EISSN: None     Source Type: Journal    
DOI: 10.1021/ja0714437     Document Type: Article
Times cited : (54)

References (46)
  • 20
    • 0042330256 scopus 로고    scopus 로고
    • Bongiovanni, G.; Botta, C.; Di, Silvestro, G.; Loi, M. A.; Mura, A.; Tubino, R. Chem. Phys. Lett. 2001, 345, 386.
    • Bongiovanni, G.; Botta, C.; Di, Silvestro, G.; Loi, M. A.; Mura, A.; Tubino, R. Chem. Phys. Lett. 2001, 345, 386.
  • 23
    • 0003667153 scopus 로고    scopus 로고
    • Andrews, D. L, Demidov, A. A, Eds, John Wiley & Sons: Chichester
    • Demidov, A. A. In Resonance Energy Transfer; Andrews, D. L., Demidov, A. A., Eds.; John Wiley & Sons: Chichester, 1999.
    • (1999) Resonance Energy Transfer
    • Demidov, A.A.1
  • 27
    • 34447574711 scopus 로고    scopus 로고
    • More elaborate description of the dielectric screening than the 1/n4 term in the Förster formula involves the correct shape of the molecular cavity as well as the distance dependence of the screening.26 It becomes even more difficult in the present system due to the anisotropy of the PHTP host, and the high concentration of chromophores, which changes the effective polarizability of the medium. However looking at the polarizability tensor of PHTP, the anisotropy turns out to be rather weak, and also the change in the effective polarizability is estimated to be rather small. Moreover, keeping in mind, that the chromophores in the host-guest system are only weakly coupled, the distance dependence should be weak. Last but not least, the shape factor for rod-shaped molecules is expected to change the screening by less then 10% compared to Försters formulation.26
    • 26
  • 33
    • 34447574710 scopus 로고    scopus 로고
    • D are the calculated oscillator strength and the frequency of the electronic transition, respectively. This allows for a perfect match of the DMA results with the PDA model for long intermolecular separations.
    • D are the calculated oscillator strength and the frequency of the electronic transition, respectively. This allows for a perfect match of the DMA results with the PDA model for long intermolecular separations.
  • 37
    • 34447568218 scopus 로고    scopus 로고
    • The dimension is chosen such that, providing the excitation is within the PBC lattice, all sites in the cut-off lattice will still be present in the superlattice. If the excitation moves outside the PBC lattice, the excitation is moved to the corresponding site on the opposite side of the PBC lattice. This method of applying periodic boundary conditions is not exact, because the acceptor distribution and any interchannel disorder are not reproduced at the new site. However, for sufficiently large superlattices artifacts thus introduced are negligible. To ensure that the local structure of the superlattice is always matched by the two sub-lattices, two tables are created to translate the number labels between the lattices
    • The dimension is chosen such that, providing the excitation is within the PBC lattice, all sites in the cut-off lattice will still be present in the superlattice. If the excitation moves outside the PBC lattice, the excitation is moved to the corresponding site on the opposite side of the PBC lattice. This method of applying periodic boundary conditions is not exact, because the acceptor distribution and any interchannel disorder are not reproduced at the new site. However, for sufficiently large superlattices artifacts thus introduced are negligible. To ensure that the local structure of the superlattice is always matched by the two sub-lattices, two tables are created to translate the number labels between the lattices.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.