Abstract
Three novel distyrylbenzene derivatives have been synthesized and their optical properties have been investigated. All the compounds give large two-photon absorption (TPA) cross sections and their TPA cross sections are significantly enhanced with the temperature decreases. Especially, the compound of TMVDB is highly luminescent as the fluorescence quantum yield of 0.83. TPA cross section of TMVDB is 1164 GM and ratio of TPA cross section divided to molecular weight is as high as 2.08. All the results of TMVDB show its excellent TPA induced emission performance. The TMVDB is doped into the solid matrix and a solid-state film with strong TPA induced emission is obtained.
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