/ CHEMICAL SOLUTION OF LEAD MAGNESIUM NIOBATE/LEAD TITANATE FOR FERROELECTRIC THIN FILM

摘要

PURPOSE: Provided is a coating solution which does not show the crystal precipitation and the gelation, and which has little change of viscosity as time goes by, and which can form a uniform ferroelectric film when coated on substrate, dried and then sintered. CONSTITUTION: The solution comprises (a) organic metal compounds of lead, magnesium, niobium, and titanium metals, which forms ferroelectrics; (b) at least one of organic acid selected from the group consisting of 4-methoxyphenylacetic acid, cyclohexane propionic acid, 4-methylcyclohexaneacetic acid, 2-octanoic acid, 3-cyclopentylpropionic acid, 6-heptenoic acid, 2-methylhexanoic acid, 2,2-dimethylbutyric acid, hexanoic acid, isovaleric acid, methyloxy acetic acid, isobutyric acid, propionic acid, acetic acid, and mixture thereof, and organic coordination compound selected from the group consisting of amines such as monoethanolamine, diethanolamine, triethanolamine, pyridine, benzoyl acetone, acetyl acetone, dibenzoyl acetone, and a mixture thereof; (c) water; and (d) organic solvent.