Results 81 to 90 of about 20,019 (258)

Crystal growth and property characterization for PIN–PMN–PT ternary piezoelectric crystals [PDF]

Journal of Advanced Dielectrics, 2014
Binary piezoelectric crystal Pb(Mg1/3Nb2/3)O3–PbTiO3 (PMN–PT) has excellent dielectric and piezoelectric properties, which has led to the commercialization for medical ultrasound imaging.
Jian Tian, Pengdi Han
doaj   +1 more source

Discovery of Novel Materials with Giant Dielectric Constants via First‐Principles Phonon Calculations and Machine Learning

Advanced Intelligent Discovery, EarlyView.
We discovered novel materials with giant dielectric constants by combining first‐principles phonon calculations and machine learning. Screening 525 perovskites identified six candidates. RbNbO3 was synthesized under pressure and showed ε ≈ 800–1000. This validates our framework as a powerful tool for high‐performance dielectric materials discovery.
Hiroki Moriwake, Kazuki Shitara, Rie Yokoi, Takeharu Kato, Isao Tanaka, Ayako Yamamoto, Kimitoshi Murase, Yosuke Hamasaiki, Yoshitaka Ehara, Mitsuru Itoh   +9 more
wiley   +1 more source

Ab-initio study of the relation between electric polarization and electric field gradients in ferroelectrics

, 2012
The hyperfine interaction between the quadrupole moment of atomic nuclei and the electric field gradient (EFG) provides information on the electronic charge distribution close to a given atomic site.
A. S. Fenta, A. Stroppa, D. C. Dening, G. Schatz, J. G. Correia, J. N. Gonçalves, S. Picozzi, T. Butz, V. S. Amaral   +8 more
core   +1 more source

Unraveling Mechanisms and Engineering Strategies for Superior Photocarrier Dynamics Toward Efficient Photocatalysis

EcoEnergy, EarlyView.
Despite its potential, photocatalysis is limited by inefficient charge carrier separation and transport. This article reviews the mechanisms, characterization methods, and strategies for improvement, concluding with future challenges in the field. ABSTRACT Photocatalysis offers a promising solution to environmental and renewable energy issues. However,
Leqi Cheng, Xin Wang, Yishen Zhang, Xinrong Zhang, Jung‐Ho Yun, Songcan Wang   +5 more
wiley   +1 more source

Nanosize confinement induced enhancement of spontaneous polarization in a ferroelectric nanowire

, 2010
We theoretically showed that the spontaneous polarization in ferroelectric (FE) nanowires (NWs) can be considerably enhanced due to the nanosize confinement by the first-principles calculations.
Cai, M. Q., Wang, B., Yang, G. W., Zheng, Y.   +3 more
core   +1 more source

Biofunctional Interface Integrated Multilayer SPR Biosensor for Precise Detection of Basal Cell Carcinoma

Electron, EarlyView.
A biofunctional multilayer SPR biosensor based on CsF/TiO2/Ag/CaTiO3/BP/PEG/anti‐BerEP4 is proposed for highly sensitive and selective detection of basal cell carcinoma. The sensor demonstrates enhanced performance with high sensitivity, strong resonance characteristics, and reliable differentiation between normal and cancerous cells, supporting early ...
Raonak Karim, Nahian Montasir, Tasnim Ferdous Toha, Tabah Maimuna Momo, Md. Al Amin Islam Utshob, Maymona Binte Juwel, Khandakar Mohammad Ishtiak   +6 more
wiley   +1 more source

Highly Sensitive and Selective PbTiO3 Gas Sensors with Negligible Humidity Interference in Ambient Atmosphere.

ACS Applied Materials and Interfaces, 2019
Three PbTiO3 nanostructures were synthesized using a one-step hydrothermal reaction with different TiO2 powders as Ti sources, and their gas-sensing properties were investigated.
Xingyu Ma, Hua-Yao Li, S. Kweon, Seong-Yong Jeong, Jong‐Heun Lee, S. Nahm   +5 more
semanticscholar   +1 more source

Rotator and extender ferroelectrics: Importance of the shear coefficient to the piezoelectric properties of domain-engineered crystals and ceramics

, 2007
The importance of a high shear coefficient d15 (or d24) to the piezoelectric properties of domain-engineered and polycrystalline ferroelectrics is discussed.
Dragan Damjanovic, Jaffe B., Marko Budimir, Matthew Davis, Nava Setter, Nye J. F.   +5 more
core   +1 more source

Atomic substitution effects on the structural and vibrational properties of NixPb1-xTiO3: X-ray diffraction and Raman scattering investigations

AIP Advances, 2015
The effects of the atomic substitution of Pb by Ni in the PbTiO3 ferroelectric perovskite on the vibrational and structural properties was studied using x-ray diffraction and Raman scattering.
R. C. da Costa, T. A. de Toledo, J. W. M. Espinosa, P. S. Pizani   +3 more
doaj   +1 more source

Ferroelectric Oxide Nanocomposites with Trimodal Pore Structure for High Photocatalytic Performance

Nano-Micro Letters, 2019
An effective method to improve the photocatalytic performances of powder catalysts is to use the internal electric field from ferroelectrics to separate photogenerated charge carriers.
Tingting Xu, Xuan Liu, Shulan Wang, Li Li   +3 more
doaj   +1 more source