Self-condensed nanoparticles of oligofluorenes with water-soluble side chains.
Self-condensation of the amphiphilic fluorene trimer occurs in the solvent mixture, giving pure "green" fluorescent nanoparticles with controlled radii of 20-100 nm. The origin of the green fluorescence is attributed to the excimer emission via excitation of aggregated dimer structures in the nanoparticles rather than the keto-defects. The present study also suggests the possibility of spectral tuning of emissions from oligofluorene aggregates.
Koizumi
Yoshiko
Y
The Institute of Scientific and Industrial Research, Osaka University, 8-1 Mihogaoka, Ibaraki, Osaka 567-0047, Japan.
Seki
Shu
S
Tsukuda
Satoshi
S
Sakamoto
Shingo
S
Tagawa
Seiichi
S