H. Kang et al., Second-order nonlinearities of poled film containing the multi-intramolecular charge-transfer chromophore, SYNTH METAL, 121(1-3), 2001, pp. 1469-1470
To achieving better nonlinearity-transparency-thermal stability trade-off a
multi-intramolecular charge transfer chromophore with diamine end group wa
s synthesized. The donor-embedded polyimide film was prepared and investiga
ted by using the simultaneous poling and addition polymerization technique
and monitored by the in-situ SHG measurement. Its temporal orientation stab
ility at 150 degreesC was over 1000 hours.