Electro-Optical Properties of Polymers Containing Alternating Nonlinear Optical Chromophores and Bulky Spacers
journal contributionposted on 21.02.2006, 00:00 by Yi Liao, Cyrus A. Anderson, Philip A. Sullivan, Andrew J. P. Akelaitis, Bruce H. Robinson, Larry R. Dalton
Alternating polymers of a nonlinear optical chromophore and bulky spacers were synthesized. High chromophore loading and efficient site isolation were achieved with this approach. The effects of chromophore loading density and electric poling field on the electro-optical (EO) properties of the polymers were carefully compared with those of guest−host systems of the same chromophore. The alternating polymer can be poled to higher EO efficiency under a lower poling field than the optimized guest−host system, while the λmax of the polymer film is about 40 nm shorter than that of the guest−host system.