Hot Paper: The impact of charge defects and resonance enhancement on the two-photon absorption activity of spirofluorene and ladder-type pentaphenylene derivatives

Graphical abstract: The impact of charge defects and resonance enhancement on the two-photon absorption activity of spirofluorene and ladder-type pentaphenylene derivativesResearchers 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

Namchul Cho, Gang Zhou, Kenji Kamada, Ran Hee Kim, Koji Ohta, Sung-Ho Jin, Klaus Müllen and Kwang-Sup Lee, J. Mater. Chem., 2012, DOI: 10.1039/C1JM13481G (Advance Article)

To keep up-to-date with all the latest research, sign up for the journal’s e-alerts or RSS feeds or follow Journal of Materials Chemistry on Twitter.

Digg This
Reddit This
Stumble Now!
Share on Facebook
Bookmark this on Delicious
Share on LinkedIn
Bookmark this on Technorati
Post on Twitter
Google Buzz (aka. Google Reader)