Molecular origin of the temperature-dependent energy migration in a rigid-rod ladder-phenylene molecular host

Advanced Materials

Volumn 18, Issue 3, 2006, Pages 310-314

  Wiesenhofer, Herbert ^a,c   Zojer, Egbert ^b,c   List, Emil J W ^c,d   Scherf, Ullrich ^e   Brédas, Jean Luc ^b   Beljonne, David ^a,b  

^a UNIVERSITY OF MONS   (Belgium)

^b GEORGIA INSTITUTE OF TECHNOLOGY   (United States)

^c GRAZ UNIVERSITY OF TECHNOLOGY   (Austria)

^d JOANNEUM RESEARCH   (Austria)

^e UNIVERSITY OF WUPPERTAL   (Germany)

Author keywords

[No Author keywords available]

Indexed keywords

DIFFUSION; ELECTRONIC STRUCTURE; LUMINESCENCE; OLIGOMERS; TEMPERATURE DISTRIBUTION;

ELECTRONIC EXCITATIONS; LINEWIDTHS;

MOLECULAR DYNAMICS;

EID: 32244435832     PISSN: 09359648     EISSN: None     Source Type: Journal    
DOI: 10.1002/adma.200501473     Document Type: Article

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23. For the hypothetical case of zero disorder, the overall temperature-dependent migration dynamics is also affected by the last hopping step to the RS9 molecule and is sensitive to the value of HB.
24. According to numerical simulations, the expectation value of the energetic spacing between Gaussian distributions of donor and acceptor site energies amounts to ∼1.13 times the standard deviation of the Gaussian function.
25. Note that direct excitation of the RS9 molecule cannot be avoided as its absorption into higher-lying electronically excited states overlaps with the 5LOPP absorption. However, the influence of direct RS9 absorption is small as a result of the low concentration of the acceptor.