Quinuclidinium salt ferroelectric thin-film with duodecuple-rotational polarization-directions.

ABSTRACT: Ferroelectric thin-films are highly desirable for their applications on energy conversion, data storage and so on. Molecular ferroelectrics had been expected to be a better candidate compared to conventional ferroelectric ceramics, due to its simple and low-cost film-processability. However, most molecular ferroelectrics are mono-polar-axial, and the polar axes of the entire thin-film must be well oriented to a specific direction to realize the macroscopic ferroelectricity. To align the polar axes, an orientation-controlled single-crystalline thin-film growth method must be employed, which is complicated, high-cost and is extremely substrate-dependent. In this work, we discover a new molecular ferroelectric of quinuclidinium periodate, which possesses six-fold rotational polar axes. The mu

SUBMITTER: You YM 

PROVIDER: S-EPMC5382275 | biostudies-literature | 2017 Apr

REPOSITORIES: biostudies-literature