期刊
ACS NANO
卷 11, 期 11, 页码 11739-11745出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsnano.7b07090
关键词
chiral molecules; ferroelectrics; mechanical robustness; electro-optic effects; electroresistance
类别
资金
- U.S. Department of Energy, Office of Basic Energy Sciences, Division of Materials Sciences and Engineering [DE-SC0017928]
- National Natural Science Foundation of China [NSFC-91622104, NSFC-21427801, 51472118]
- U.S. Department of Energy (DOE) [DE-SC0017928] Funding Source: U.S. Department of Energy (DOE)
Multifunctional properties of chiral molecules arise from the coexistence of mirror-symmetry-induced stereoisomers and optical rotation characteristics in one material. One of these complex phenomena in these molecules is chiral ferroelectricity, providing the coupling between polarized light and the spatial asymmetry induced dipole moment. Herein we describe the chiral polarization and electroresistance in molecular ferroelectric (R)-(-)-3-hydroxyquinuclidinium chloride thin films with a Curie temperature of 340 K. The high transmittance of chiral ferroelectrics is coupled with polarized light for a linear electro-optic effect, which exhibits angle-dependent optical behaviors. The polarization-controlled conductance imposes a large on/off ratio (similar to 26.6) of electroresistive switching in molecular ferroelectrics with superior antifatigue endurance.
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