Large three-photon absorption cross-section in a novel class of bis-(N-carbazolyl) fluorene derivatives
Data(s) |
2005
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Resumo |
Two novel symmetrical charge transfer fluorene derivatives (abbreviated as BCZF and BVCZF) with carbazole end-group as the donor moieties have been synthesized. Three-photon absorption cross-sections of these two compounds have been determined by using a Q-switched Nd:YAG laser pumped with 38 ps pulses at 1064 nm in DMF. The measured 3PA cross-sections are 140 x 10(-78) and 400 x 10(-78) cm(6) s(2) for BCZF and BVCZF, respectively. The geometries, electronic structures and electronic spectra of these two compounds are systematically studied by AM1 and ZINDO/S methods. On the basis of correct UV-vis spectra, the influence of different molecular structure on three-photon absorption cross-sections is discussed micromechanically. (C) 2005 Elsevier B.V. All rights reserved. |
Identificador | |
Idioma(s) |
英语 |
Fonte |
马文波;吴谊群;Han JH;顾冬红;干福熹.,Chem. Phys. Lett.,2005,403(4~6):405-409 |
Palavras-Chave | #光存储 #DYES #MICROFABRICATION #FLUORESCENCE |
Tipo |
期刊论文 |