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Theoretical studies...
Theoretical studies on nonlinear optical properties of two newly synthesized compounds : EPVPC and OPVPC
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Sun, Y. H. (författare)
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Zhao, K. (författare)
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Wang, C. K. (författare)
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- Luo, Yi (författare)
- KTH,Teoretisk kemi
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Yan, Y. X. (författare)
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Tao, X. T. (författare)
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Jiang, M. H. (författare)
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(creator_code:org_t)
- 2004-12-23
- 2005
- Engelska.
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Ingår i: Chinese Physics. - : IOP Publishing. - 1009-1963 .- 1741-4199. ; 14:1, s. 115-119
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- The nonlinear optical properties of two newly synthesized molecules 9-Ethyl-3-{2-[4-(2-Pyridin-4-yl-vinyl)-phenyl]vinyl}-9H-carbazole (EPVPC) and 9-Octadecyl-3-{2-[4-(2-Pyridin-4-yl-vinyl)-phenyl]-vinyl}-9H-carbazole (OPVPC) have been studied with hybrid density functional theory (DFT/B3LYP). The generalized few-state model is employed to calculate the two-photon absorption cross sections of the compounds. The theoretical results are in good agreement with the available experimental measurements. It is found that the maximal two-photon absorption (TPA) cross sections of the compounds can be well described by a three-state model. The numerical simulation shows that both compounds have large two-photon absorption (TPA) cross sections and, furthermore, OPVPC displays a little stronger TPA activity than EPVPC in a lower frequency region.
Nyckelord
- few-state model
- two-photon absorption
- density-functional theory
- absorption cross-sections
- 2-photon absorption
- multibranched structures
- chromophores
- molecules
- derivatives
- acceptor
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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