Synthesis of C60-diphenylaminofluorene dyad with large 2PA cross-sections and efficient intramolecular two-photon energy transfer.
The first, highly two-photon active C60 derivative comprised of a A-sp3-D conjugate structure was synthesized showing effective two-photon absorption cross-sections (sigma 2' = 196 x 10(-48) cm4 sec-1 molecule-1) in the nanosecond regime among the best values for diphenylaminofluorene-based AFX chromophores.
Chiang
Long Y
LY
Department of Chemistry, Institute of Nanoscience and Engineering, University of Massachusetts Lowell, Lowell, MA 01854, USA. Long_Chiang@uml.edu
Padmawar
Prashant A
PA
Canteenwala
Taizoon
T
Tan
Loon-Seng
LS
He
Guang S
GS
Kannan
Ramamurthi
R
Vaia
Richard
R
Lin
Tzu-Chau
TC
Zheng
Qingdong
Q
Prasad
Paras N
PN