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

被引:22
作者
Wiesenhofer, H
Zojer, E
List, EJW
Scherf, U
Brédas, JL
Beljonne, D
机构
[1] Univ Mons, B-7000 Mons, Belgium
[2] Georgia Inst Technol, Sch Chem & Biochem, Atlanta, GA 30332 USA
[3] Georgia Inst Technol, Ctr Organ Photon & Elect, Atlanta, GA 30332 USA
[4] Graz Univ Technol, Inst Solid State Phys, A-8010 Graz, Austria
[5] Graz Univ Technol, Inst Solid State Phys, Christian Doppler Lab Adv Funct Mat, A-8010 Graz, Austria
[6] Joanneum Res, Inst Nanostruct Mat & Photon, A-8160 Weiz, Austria
[7] Univ Gesamthsch Wuppertal, Dept Chem, D-42097 Wuppertal, Germany
关键词
D O I
10.1002/adma.200501473
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Excitation diffusion is studied in a molecular host doped with a luminescent guest. An atomistic model based on the coupling of the electronic excitations to low-frequency intramolecular vibrations reproduces remarkably well the measured temperature-dependent host-to-guest energy transfer efficiency (see Figure).
引用
收藏
页码:310 / +
页数:6
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