Dear colleague, Recently I want to spin-coat copolymer P(VDF-TrFE) thin films on the Al-coated glass substrate, but the adhesion between coplymer and Al-coating is not good, and the whole films is not uniform with many holes. how to improve the adhesion and form the uniform copolymer thin films by the spin-coating method.Please give me advice if you have exprience in this field.Many thanks. Regards J.J.Li Research Institute of Electronics Shizuoka University