Results 81 to 90 of about 547,155 (381)

Enhanced Switching Performance in Single‐Crystalline PbTiO3 Ferroelectric Memristors for Replicating Synaptic Plasticity

Advanced Functional Materials, EarlyView.
This study demonstrated single‐crystalline PbTiO3‐based memristors with atomically sharp interfaces, well‐ordered lattices, and minimal lattice mismatch. The devices exhibited an ON/OFF ratio exceeding 105, high stability, and rich resistance‐state modulation.
Haining Li, Zhiqiang Liao, Risa Kataoka, Md Sarker Shamim, Takeshi Kijima, Hiroyasu Yamahara, Hitoshi Tabata, Munetoshi Seki   +7 more
wiley   +1 more source

DENTA: A Dual Enzymatic Nanoagent for Self‐Activating Tooth Whitening and Biofilm Disruption

Advanced Functional Materials, EarlyView.
The nanoapatite with dual enzymes (DENTA) accumulates in dentinal tubules, reducing hypersensitivity caused by dental nerve exposure and facilitating continuous ROS generation through salivary glucose for effective, long‐term whitening. The dentin structures remain non‐destructive due to the low concentration of ROS, demonstrating excellent cell ...
Junseok Kim, Dai‐Hwan Kim, Priyannth R. Sundharbaabu, Chae Yeon Lee, Jina Bae, Jiyu Hyun, Young‐Ju Jang, Haeni Kim, Min‐Ho Hong, Juewen Liu, Tobias Fey, Suk Ho Bhang, Jun Hyuk Heo, Jung Heon Lee   +13 more
wiley   +1 more source

Unconventional piezoelectric coefficients in perovskite piezoelectric ceramics

Journal of Materiomics, 2021
Piezoelectric ceramics exhibit three conventional piezoelectric coefficients, i.e., d33, d31, d15, due to their ∞mm crystal symmetry. Unconventional piezoelectric coefficients, such as d11, d12, d13, d14, d16, etc., can only be extracted from ...
Jingen Wu, Zhongqiang Hu, Xiangyu Gao, Miaomiao Cheng, Xinger Zhao, Wei Su, Liqian Wang, Mengmeng Guan, Yongjun Du, Ruohao Mao, Zhiguang Wang, Ziyao Zhou, Shuxiang Dong, Ming Liu   +13 more
doaj   +1 more source

First principles study of strain/electronic interplay in ZnO; Stress and temperature dependence of the piezoelectric constants [PDF]

, 2000
We present a first-principles study of the relationship between stress, temperature and electronic properties in piezoelectric ZnO. Our method is a plane wave pseudopotential implementation of density functional theory and density functional linear ...
A. Ahmin, A. Dal Corso, A. M. Rappe, D. M. Ceperley, H. Hohenberg, H. J. Monkhorst, J. C. Phillips, J. E. Jaffe, J. E. Jaffe, J. L. Martins, J. P. Perdew, J. R. Chelikowsky, L. F. Mattheiss, L. Kleinman, M. C. Payne, M. T. Yin, N. A. Hill, Nicola A. Hill, O. H. Nielsen, P. Bendt, P. Schröer, R. E. Cohen, R. E. Cohen, R. LeSar, S. Bloom, S. G. Louie, U. Rossler, U. V. Waghmare, Umesh Waghmare, W. Kohn, X. Gonze, X. Gonze, X. Gonze   +32 more
core   +2 more sources

Wafer-scale heterostructured piezoelectric bio-organic thin films

Science, 2021
Piezoelectric bioorganic thin films Piezoelectric materials enable a reversible conversion between mechanical pressure and electric charge and are useful for sensors, actuators, and high-precision motors. Yang et al.
Fan Yang, Jun Li, Yin Long, Ziyi Zhang, Linfeng Wang, Jiajie Sui, Yutao Dong, Yizhan Wang, R. Taylor, Dalong Ni, W. Cai, Ping-Gu Wang, T. Hacker, Xudong Wang   +13 more
semanticscholar   +1 more source

Dynamic Control of Synaptic Plasticity by Competing Ferroelectric and Trap‐Assisted Switching in IGZO Transistors with Al2O3/HfO2 Dielectrics

Advanced Functional Materials, EarlyView.
A frequency‐tunable ferroelectric synaptic transistor based on a buried‐gate InGaZnO channel and Al2O3/HfO2 dielectric stack exhibits linear and reversible weight updates using single‐polarity pulses. By switching between ferroelectric and trap‐assisted modes depending on input frequency, the device simplifies neuromorphic circuit design and achieves ...
Ojun Kwon, Dong Ho Lee, Seyoung Oh, Jongwon Yoon, Hyo‐Bae Kim, Ji‐Hoon Ahn, Woojin Park, Han Seul Kim, Byungjin Cho   +8 more
wiley   +1 more source

Nickel Nanowire@Porous NiCo2O4 Nanorods Arrays Grown on Nickel Foam as Efficient Pseudocapacitor Electrode

Frontiers in Energy Research, 2017
A three dimensional hierarchical nanostructure composed of nickel nanowires and porous NiCo2O4 nanorods arrays on the surface of nickel foam is successfully fabricated by a facile route.
Houzhao Wan, Lang Li, Jun Zhang, Xiang Liu, Hanbin Wang, Hao Wang   +5 more
doaj   +1 more source

Spontaneous polarization and piezoelectricity in boron nitride nanotubes

, 2003
Ab initio calculations of the spontaneous polarization and piezoelectric properties of boron nitride nanotubes show that they are excellent piezoelectric systems with response values larger than those of piezoelectric polymers.
Bernholc, J., Buongiorno-Nardelli, M., Calzolari, A., Meunier, V., Nakhmanson, S. M.   +4 more
core   +2 more sources

Interface crack between dissimilar one-dimensional hexagonal quasicrystals with piezoelectric effect [PDF]

, 2019
In this paper, an interface crack between dissimilar one-dimensional (1D) hexagonal quasicrystals with piezoelectric effect under anti-plane shear and in-plane electric loadings is studied. By using integral transform techniques, the mixed boundary value
Chen, X, Hu, KQ, Jin, H, Yang, Zhenjun
core   +1 more source

Functional Materials for Environmental Energy Harvesting in Smart Agriculture via Triboelectric Nanogenerators

Advanced Functional Materials, EarlyView.
This review explores functional and responsive materials for triboelectric nanogenerators (TENGs) in sustainable smart agriculture. It examines how particulate contamination and dirt affect charge transfer and efficiency. Environmental challenges and strategies to enhance durability and responsiveness are outlined, including active functional layers ...
Rafael R. A. Silva, Giulio Fatti, Emanuel Carlos, Guilherme Ferreira, Sumita Goswami, Suman Nandy, Luiz H. C. Mattoso, Elvira Fortunato, Caio G. Otoni, Rodrigo Martins   +9 more
wiley   +1 more source