Non-linear optical materials containing high boiling point solvents, and methods of efficiently poling the same

A composition comprising:

• an electro-optic material comprised of a nonlinear optical chromophore, wherein the nonlinear optical chromophore has a general formula (I):
• D-Π-A (I)
• wherein D represents an organic electron-donating group;
• A represents an organic electron-accepting group having an electron affinity greater than the electron affinity of D;
• and Π represents a Π-bridge between A and D;
• wherein the organic electron-donating group is a substituted or unsubstituted tetrahydroquinoline group;
• and
• wherein the electro-optic material having a glass transition temperature (Tgm) greater than or equal to about 100° C.;
• and
• the composition further comprises a solvent having a boiling point greater than or equal to about 100° C.;
• wherein the solvent is present in an amount such that a glass transition temperature of the composition as a whole (Tgc) is less than the Tgm.