Enhanced two-photon absorption with dimers of π-conjugated molecules

被引：18
|
作者：
Morel, Y
Stephan, O
Andraud, C
Baldeck, PL
机构：
[1] Univ Grenoble 1, UMR 5588, Spectrometrie Phys Lab, F-38402 St Martin Dheres, France
[2] Ecole Normale Super Lyon, Lab Stereochim & Interact Mol, F-69364 Lyon 07, France
来源：
SYNTHETIC METALS | 2001年 / 124卷 / 01期
关键词：
two-photon absorption; organic materials;
D O I：
10.1016/S0379-6779(01)00461-1
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The two-photon absorption (TPA) of three organic monomers and dimers with different conjugated systems (biphenyl, fluorene and stilbene) is investigated. Quantum chemistry calculations show an order of magnitude enhancement of the dimer TPA in comparison to the monomer TPA, and an increase of TPA with the strength of the conjugated system. The measured TPA spectra of dimers are in good agreement with calculations. At resonance, the TPA cross-sections of biphenyl, fluorene and stilbene dimers are 1.5, 6 and 13 x 10(-49) cm(4) s/photon-molecule, respectively. (C) 2001 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：237 / 239
页数：3
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