Journal
CHEMICAL PHYSICS
Volume 269, Issue 1-3, Pages 441-445Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/S0301-0104(01)00345-7
Keywords
nonlinear optical properties; two-photon absorption; INDO/CI; sum-over-states
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A new series of two-dimensional charge-transfer chromophores were designed and two of them were synthesized. Both theoretical and experimental results show there is no linear absorption in 620-1200 nm, so two-photon properties can be expected in this range. Two-photon absorption (TPA) cross-sections were theoretical studied by using quantum-chemical INDO/CI method combined with sum-over-states expression. The results suggest those compounds possess large TPA cross-sections as well as appropriate corresponding wavelengths, implying that they are good candidates for two-photon applications. (C) 2001 Elsevier Science B.V. All rights reserved.
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