Janus NLO dendrimers with different periphery functional groups: convenient synthesis and the enhanced NLO performance with the aid of the Ar-ArF self-assembly
In this work, three dendrimers with different peripheral functional groups were successfully prepared through the powerful “click chemistry” reaction. Thanks to their spherical topological structure, the NLO performance is superior to their corresponding conical dendrimers. Among them, Jauns denderimer J1 with phenyl and pentafluorophenyl groups in the periphery demonstrated the highest NLO effect of 118.0 pm V-1. Also, thanks to the Ar-ArF self-assembly effect, its optical transparency and thermal stability were also improved, with the degradation temperatures higher than 260 oC.