What is the most favorite and original chemistry developed in your research group?We originally proposed the design principle for molecular ferroelectrics:ferroelectrochemistry,including quasi-spherical theory,the int...What is the most favorite and original chemistry developed in your research group?We originally proposed the design principle for molecular ferroelectrics:ferroelectrochemistry,including quasi-spherical theory,the introduction of homochirality,and H/F substitution.Ferroelectrochemistry changed the blind search for molecular ferroelectrics into targeted chemical design,which will develop into a new discipline.展开更多
Chiral organic-inorganic metal halide semiconductors(OIMHSs)have recently attracted numerous interests due to their unique chirality,structural tunability,and extensive physical properties.However,most reported chiral...Chiral organic-inorganic metal halide semiconductors(OIMHSs)have recently attracted numerous interests due to their unique chirality,structural tunability,and extensive physical properties.However,most reported chiral OIMHSs contain toxic lead,which will be a potential obstacle to their further applications.Herein,we successfully synthesized a novel chiral lead-free tin(IV)-based OIMHS[(R)-3-hydroxyquinuclidinium]_(2)SnCl_(6)([R-HQ]_(2)SnCl_(6)).It exhibits a wide band gap(Eg)of about 4.11 eV.Moreover,[R-HQ]_(2)SnCl6 undergoes a phase transition around 330 K(Tc)and shows distinct dielectric switching characteristics with good repeatability.This work enriches the chiral lead-free OIMHS family and stimulates further exploration of chiral lead-free OIMHS switching materials.展开更多
基金supported by the National Natural Science Foundation of China(21991142,21831004,91856114,and 22175082)。
文摘What is the most favorite and original chemistry developed in your research group?We originally proposed the design principle for molecular ferroelectrics:ferroelectrochemistry,including quasi-spherical theory,the introduction of homochirality,and H/F substitution.Ferroelectrochemistry changed the blind search for molecular ferroelectrics into targeted chemical design,which will develop into a new discipline.
基金supported by the National Natural Science Foundation of China(Nos.22175082,91856114 and 21703033).
文摘Chiral organic-inorganic metal halide semiconductors(OIMHSs)have recently attracted numerous interests due to their unique chirality,structural tunability,and extensive physical properties.However,most reported chiral OIMHSs contain toxic lead,which will be a potential obstacle to their further applications.Herein,we successfully synthesized a novel chiral lead-free tin(IV)-based OIMHS[(R)-3-hydroxyquinuclidinium]_(2)SnCl_(6)([R-HQ]_(2)SnCl_(6)).It exhibits a wide band gap(Eg)of about 4.11 eV.Moreover,[R-HQ]_(2)SnCl6 undergoes a phase transition around 330 K(Tc)and shows distinct dielectric switching characteristics with good repeatability.This work enriches the chiral lead-free OIMHS family and stimulates further exploration of chiral lead-free OIMHS switching materials.
