Researchers studying new two-photon absorption chromophores based on spirofluorene and ladder-type pentaphenylenes have investigated the effect of structure on two-photon absorption efficiency.
The team say that spirofluorenes with different donors at the both terminals show an increase in two-photon absorption activity as the donor strength increases. The ladder-type pentaphenylenes derivatives show the larger two-photon absorption efficiency than spirofluorene derivatives due to better coplanarity throughout the molecule. Interested to know more? Read the full article for free
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