Two-Dimensional Layered Perovskite Ferroelectric with Giant Piezoelectric Voltage Coefficient

2019 ◽  
Vol 142 (2) ◽  
pp. 1077-1082 ◽  
Author(s):  
Xiao-Gang Chen ◽  
Xian-Jiang Song ◽  
Zhi-Xu Zhang ◽  
Peng-Fei Li ◽  
Jia-Zhen Ge ◽  
...  
Keyword(s):  
Layered Perovskite ◽  
Two Dimensional ◽  
Voltage Coefficient ◽  
Piezoelectric Voltage

scholarly journals Two-dimensional Ruddlesden–Popper layered perovskite for light-emitting diodes

APL Materials ◽  
2020 ◽  
Vol 8 (4) ◽  
pp. 040901 ◽  
Author(s):  
Bo Sun ◽  
Ying Xu ◽  
Yonghua Chen ◽  
Wei Huang
Keyword(s):  
Light Emitting Diodes ◽  
Layered Perovskite ◽  
Two Dimensional ◽  
Light Emitting

scholarly journals Giant piezoelectric voltage coefficient in grain-oriented modified PbTiO3 material

2016 ◽  
Vol 7 (1) ◽  
Author(s):  
Yongke Yan ◽  
Jie E. Zhou ◽  
Deepam Maurya ◽  
Yu U. Wang ◽  
Shashank Priya
Keyword(s):  
Voltage Coefficient ◽  
Piezoelectric Voltage

scholarly journals Piezoelectric Characteristics of 0.55Pb(Ni1/3Nb2/3)O3-0.45Pb(Zr,Ti)O3 Ceramics with Different MnO2 Concentrations for Ultrasound Transducer Applications

Materials ◽  
2019 ◽  
Vol 12 (24) ◽  
pp. 4115 ◽  
Author(s):  
Myeongcheol Kang ◽  
Lae-Hyong Kang
Keyword(s):  
Dielectric Constant ◽  
Piezoelectric Ceramic ◽  
Electromechanical Coupling ◽  
Solid State Reaction Method ◽  
Electromechanical Coupling Coefficient ◽  
Ultrasound Transducers ◽  
Conventional Solid State Reaction ◽  
Voltage Coefficient ◽  
Piezoelectric Voltage ◽  
Piezoelectric Characteristics

In this study, we investigate the piezoelectric characteristics of 0.55Pb(Ni1/3Nb2/3)O3-0.45Pb(Zr,Ti)O3 (PNN-PZT) with MnO2 additive (0, 0.25, 0.5, 1, 2, and 3 mol%). We focus on the fabrication of a piezoelectric ceramic for use as both actuator and sensor for ultrasound transducers. The actuator and sensor properties of a piezoelectric ceramic depend on the piezoelectric strain coefficient d and piezoelectric voltage coefficient g, related as g = d/εT. To increase g, the dielectric constant εT must be decreased. PNN-PZT with MnO2 doping is synthesized using the conventional solid-state reaction method. The electrical properties are determined based on the resonant frequencies and vibration modes measured by using an impedance analyzer. The MnO2 addition initially improves the tetragonality of the PNN-PZT ceramic, which then saturates at a MnO2 content of 1 mol%. Therefore, the dielectric constant and piezoelectric coefficient d33 steadily decrease, while the mechanical properties (Qm, Young’s modulus), tanδ, electromechanical coupling coefficient k, and piezoelectric voltage coefficient g were improved at 0.5–1 mol% MnO2 content.

scholarly journals PZT/PLZT - elastomer composites with improved piezoelectric voltage coefficient

2018 ◽  
Vol 314 ◽  
pp. 012007
Author(s):  
K. Harikrishnan ◽  
D V Bavbande ◽  
Dhirendra Mohan ◽  
B Manoharan ◽  
M R S Prasad ◽  
...  
Keyword(s):  
Voltage Coefficient ◽  
Elastomer Composites ◽  
Piezoelectric Voltage

Fabrication of two-dimensional layered perovskite [NH3(CH2)12NH3]PbX4 thin films using a self-assembly method

2002 ◽  
pp. 1094-1095 ◽  
Author(s):  
Takashi Matsui ◽  
Akane Yamaguchi ◽  
Yuko Takeoka ◽  
Masahiro Rikukawa ◽  
Kohei Sanui
Keyword(s):  
Thin Films ◽  
Self Assembly ◽  
Layered Perovskite ◽  
Two Dimensional ◽  
Assembly Method

Efficient Trap-Mediated Mn2+ Dopant Emission in Two Dimensional Single-Layered Perovskite (CH3CH2NH3)2PbBr4

2019 ◽  
Vol 123 (23) ◽  
pp. 14239-14245 ◽  
Author(s):  
Binbin Luo ◽  
Yan Guo ◽  
Xianli Li ◽  
Yonghong Xiao ◽  
Xiaochun Huang ◽  
...  
Keyword(s):  
Layered Perovskite ◽  
Two Dimensional

scholarly journals Two-dimensional hybrid perovskites sustaining strong polariton interactions at room temperature

2019 ◽  
Vol 5 (5) ◽  
pp. eaav9967 ◽  
Author(s):  
A. Fieramosca ◽  
L. Polimeno ◽  
V. Ardizzone ◽  
L. De Marco ◽  
M. Pugliese ◽  
...  
Keyword(s):  
Quantum Wells ◽  
Degrees Of Freedom ◽  
Room Temperature ◽  
Optical Cavity ◽  
Oscillator Strengths ◽  
Layered Perovskite ◽  
Two Dimensional ◽  
Coherent Coupling ◽  
Highly Nonlinear ◽  
Order Of Magnitude

Polaritonic devices exploit the coherent coupling between excitonic and photonic degrees of freedom to perform highly nonlinear operations with low input powers. Most of the current results exploit excitons in epitaxially grown quantum wells and require low-temperature operation, while viable alternatives have yet to be found at room temperature. We show that large single-crystal flakes of two-dimensional layered perovskite are able to sustain strong polariton nonlinearities at room temperature without the need to be embedded in an optical cavity formed by highly reflecting mirrors. In particular, exciton-exciton interaction energies are shown to be spin dependent, remarkably similar to the ones known for inorganic quantum wells at cryogenic temperatures, and more than one order of magnitude larger than alternative room temperature polariton devices reported so far. Because of their easy fabrication, large dipolar oscillator strengths, and strong nonlinearities, these materials pave the way for realization of polariton devices at room temperature.

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