Hello,everyone,

I am doing some work about ferroelectric copolymer P(VDF-TrFE).
but I know a little about this copolymer. During spin -coating this copolymer on
glass substrate, I found that higher-spin-rate ( more than 500 rpm)formed films
has a bad crystallinity after annealing at 140 degree, and then this polymer can
not adhere preferably to the glass substrate. I need a spin-coated films with a
better crystallinity and good adhering to glass substrate, but I don't know why
high spin rate can lead to this bad crystallinity for P(VDF-TrFE). If someone
has some experience in P(VDF-TrFE), please give me advice. Many thanks.

J.J.Li
Research Institute of Electronics
Shizuoka University
Japan
E-mail: [email protected]