Results 131 to 140 of about 3,436,516 (244)

Molecular Dynamics Simulation Study of the Plastic/Ferroelectric Crystal Quinuclidinium Perrhenate

open access: yes, 2019
The structures and dynamics of quinuclidinium perrhenate, which is the first example of a plastic/ferroelectric crystal, were investigated by molecular dynamics simulation.
Makoto Yoneya (1503619)   +1 more
core   +1 more source

Programmable Guest‐Induced 5‐Phase‐Transition Topological Reconstructions of Cobalt Formate Metal–Organic Frameworks

open access: yesAdvanced Science, EarlyView.
A reversible five‐phase topological cycle is achieved in a minimalist cobalt formate metal–organic framework. The amorphous phase functions as a programmable reactive hub, selectively reconstructing into four distinct crystalline architectures through cationic templates, humidity, or CO2.
Zhiyu Tao   +6 more
wiley   +1 more source

Dynamical properties of two ferroelectric phases of epoxy compound

open access: yes, 1997
Dielectric methods (FDDS and TDS) were used to study collective and molecular processes of two ferroelectric phases of 4'-[(S,S)-2,3-epoxyhexyloxy] phenyl 4-decyloxy benzoate (EHPDB) which shows the following phase sequence: Is-N*-SmC*-S-3-Cr.
Wrobel, S,   +6 more
core  

Organic Electrochemical Transistors for Neuromorphic Bioelectronics: Materials and Manufacturing Technologies

open access: yesAdvanced Science, EarlyView.
Organic electrochemical transistors bridge biological ionic signaling and neuromorphic computation through volumetric electrochemical gating. This review connects Organic mixed ionic–electronic conductor materials, device architectures, and manufacturing technologies to show how geometry, ion transport, and fabrication strategies program plasticity ...
Hyunjin Lee   +5 more
wiley   +1 more source

Relaxor-like ferroelectric response and achiral–chiral switching in an amorphous molecular solid

open access: yesNature Communications
Organic ferroelectrics offer a molecular platform for integrating polarization dynamics with molecular design, photoresponsiveness and chiroptical functions, including light-triggered achiral-to-chiral transitions, yet these responses remain strongly ...
Hanyu Liu   +4 more
doaj   +1 more source

An Above-Room-Temperature Molecular Ferroelectric: [Cyclopentylammonium]2CdBr4

open access: yes, 2019
Molecular ferroelectrics as alternatives to the conventional inorganic ferroelectrics have been greatly developed in past decades; many of these have been discovered and designed through various chemical means due to their structural adjustability ...
Wei-Qiang Liao   +9 more
core   +1 more source

A Recyclable and Biodegradable High‐Performance Piezoelectric Nanogenerator for Self‐Powered Biosensing and Assistive Human‐Machine Interaction

open access: yesAdvanced Science, EarlyView.
By exploiting multiscale hydrogen‐bonding interactions between HFPD and TOCNF, the composite simultaneously achieves a high piezoelectric coefficient (14.0 pC·N−1), outstanding flexibility (100 000 bending cycles), water‐assisted recyclability, excellent biodegradability, and sensitive wearable/implantable sensing for motion, speech, and Morse code ...
Tingshuai Luo   +9 more
wiley   +1 more source

Fast molecular-dynamics simulation for ferroelectric thin-film capacitors using a first-principles effective Hamiltonian

open access: yes, 2008
A newly developed fast molecular dynamics method is applied to BaTiO3 ferroelectric thin-film capacitors with short-circuited electrodes or under applied voltage.
Kawazoe, Yoshiyuki   +3 more
core   +1 more source

Functional MXene Inks for Printed Electronics: Chemistry, Rheology, and Devices

open access: yesAdvanced Science, EarlyView.
Functional MXene inks are emerging as building blocks for MXetronics, connecting MXene synthesis, surface functionalization, ink formulation, and advanced printing with device‐level applications. This review maps how composition, stability, rheology, and processability govern printed structures and enable high‐performance sensors, energy‐storage ...
Shahzaib Ali   +6 more
wiley   +1 more source

Shear‐Mode Direct Piezoelectric Response of Ferroelectric Nematic Liquid Crystals

open access: yesAdvanced Science, EarlyView.
Periodic shear‐induced electric current measurements are reported on two archetypic ferroelectric nematic liquid crystal compounds. From the temperature, frequency and shear angle dependent results of the first and second harmonic current signals together with temperature and oscillatory rheology measurements, the effective piezoelectric coupling ...
Péter Salamon   +4 more
wiley   +1 more source

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