Tuning ferroelectric phase transition temperature by enantiomer fraction.

ABSTRACT: Tuning phase transition temperature is one of the central issues in phase transition materials. Herein, we report a case study of using enantiomer fraction engineering as a promising strategy to tune the Curie temperature (T_C) and related properties of ferroelectrics. A series of metal-halide perovskite ferroelectrics (S-3AMP)_x(R-3AMP)_1-xPbBr₄ was synthesized where 3AMP is the 3-(aminomethyl)piperidine divalent cation and enantiomer fraction x varies between 0 and 1 (0 and 1 = enantiomers; 0.5 = racemate). With the change of the enantiomer fraction, the T_C, second-harmonic generation intensity, degree of circular polarization of photoluminescence, and photoluminescence intensity of the materials have been tuned. Particularly, when x = 

SUBMITTER: Fan CC 

PROVIDER: S-EPMC10874439 | biostudies-literature | 2024 Feb

REPOSITORIES: biostudies-literature