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. 2005 Apr 7;109(13):2996-9.
doi: 10.1021/jp050747h.

Large two-photon absorption (TPA) cross-section of directly linked fused diporphyrins

Deok Yun Kim  1 , Tae Kyu Ahn, Jung Ho Kwon, Dongho Kim, Takahisa Ikeue, Naoki Aratani, Atsuhiro Osuka, Motoyuki Shigeiwa, Shuichi Maeda
Affiliations

Large two-photon absorption (TPA) cross-section of directly linked fused diporphyrins

Deok Yun Kim et al. J Phys Chem A. .

Abstract

The excited state dynamics and two-photon absorption properties of four novel triply linked porphyrin dimers in toluene have been investigated. The fused porphyrin dimers exhibit extremely increased two-photon absorption cross-section values (12,000-15,000 GM) compared with porphyrin monomers owing to much enhanced pi-electron delocalization throughout the porphyrin dimer ring.

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