Results 131 to 140 of about 2,694,809 (245)

Piezoelectricity and charge trapping in ZnO and Co-doped ZnO thin films

AIP Advances, 2017
Piezoelectricity and charge storage of undoped and Co-doped ZnO thin films were investigated by means of PiezoResponse Force Microscopy and Kelvin Probe Force Microscopy.
Domenico D’Agostino, Cinzia Di Giorgio, Antonio Di Trolio, Anita Guarino, Anna Maria Cucolo, Antonio Vecchione, Fabrizio Bobba   +6 more
doaj   +1 more source

Ferroionic Electrostatic Landscapes Enabling Wireless Energy Harvesting, Storage, and Sensing

Advanced Electronic Materials, EarlyView.
By integrating experiments and electrostatic field simulations, we show that long‐range wireless coupling in Li‐based ferroionics devices emerges from the cooperative interaction between ionic migration and electronic polarization. This coupling sustains self‐polarized electrostatic fields across centimeter‐scale air gaps without external bias or ...
M. Helena Braga, Beatriz M. Gomes, António B. Vale, Beatriz A. Maia, Ilídio B. Costa, Filipa Braz, Jorge C. Ribeiro, João C. Ribeiro   +7 more
wiley   +1 more source

Artificial Intelligence for Fluorite Ferroelectric Materials: From Discovery to Optimization

Advanced Electronic Materials, EarlyView.
Artificial intelligence accelerates the discovery and optimization of HfO2‐based fluorite ferroelectrics by linking synthesis, structure, properties, and device performance. Machine learning, deep‐learning analysis, and AI‐driven atomistic modeling enable predictive design, dopant screening, and closed‐loop optimization toward next‐generation ...
Faizan Ali, David Lehninger, Florencio Sánchez, Ignasi Fina   +3 more
wiley   +1 more source

Tuning Local Modulus at Liquid Metal‐Polymer Interfaces Regulates Electrocaloric Effect in Ferroelectric Nanocomposites

Advanced Electronic Materials, EarlyView.
Liquid metal nanoparticles create mechanically compliant polymer interfaces that facilitate reversible dipolar reorientation under electric fields, whereas rigid interfaces impose stronger local constraints. This soft–rigid interface comparison reveals local interfacial modulus as a key parameter for tuning electrocaloric entropy change in ...
Tian Yao, Shanyu Zheng, Binzhou Sun, Zhenhua Ma, Feiyu Zhang, Lu Yu, Qiang Li, Ruhong Luo, Feihong Du, Yifan Zhao, Yezhan Lin, Chunyu Wang, Xin Chen, Shi‐Yang Tang, Tiannan Yang, Xiaoshi Qian   +15 more
wiley   +1 more source

Piezoelectric Nanofibrous Scaffolds for Promoting the Growth of Spiral Ganglion Neurons via Acoustic Stimulation. [PDF]

Smart Med
The piezoelectric nanofibrous scaffolds containing PANI, PLLA and Gelatin exhibited biomimetic structure, components, and piezoelectricity. Benefiting from the oriented nanofibers and electrical stimulation induced by wireless acoustic excitation, the SGNs cultured on the scaffolds showed enhanced neurite alignment, extension, and growth cone ...
Xu D, Cheng C, Xu S, Bu C, He S, Song S, Wang Y, Tong B, Hu Y, Wang H, Chai R.   +10 more
europepmc   +2 more sources

Selenocyanate Driven Organic Cations Homogenization in Wide‐Bandgap Perovskite

Advanced Energy Materials, EarlyView.
Selenocyanate pseudohalide doping stabilizes 1.66 eV wide‐bandgap formamidinium (FA)‐based perovskite lattices via strong FA+ hydrogen bonding and matched ionic radii. Uniform cation distribution and suppressed ion migration reduces defect losses, delivering >24% single‐junction efficiency and 32.66% perovskite/silicon tandem performance with ...
Zhi‐Wen Gao, Jun Fang, Yehui Wen, Longbin Qiu, Jiajia Zhang, Yong Wang, Wallace C. H. Choy   +6 more
wiley   +1 more source

Isomorphic contact resonance force microscopy and piezoresponse force microscopy of an AlN thin film: demonstration of a new contact resonance technique. [PDF]

Nano Futures, 2020
Robins LH, Brubaker MD, Tung RC, Killgore JP.   +3 more
europepmc   +1 more source

Internal Electric Field‐Guided, Low‐Adsorption Ferroelectric Anode Protective Layers for Sustainable Suppression of Polysulfide Side Reactions in Lithium–Sulfur Batteries

Advanced Energy Materials, EarlyView.
A positively polarized ferroelectric β‐pvdf layer incorporating fluorinated boron nitride nanosheets (PPFBN) establishes a strong internal field that promotes Li+ transport toward the anode while suppressing the migration of polysulfide anions. In addition, its intrinsically low polysulfide affinity helps preserve protective‐layer functionality ...
Daehun Han, Hyerim Jang, Junyoung Heo, Kyungjun Kim, Hawon Gu, Jun‐Woo Park, Sang‐Min Lee   +6 more
wiley   +1 more source

Channel‐trap coupled charge modulation in sulfur‐vacancy‐rich nanotransducer for enhanced dual‐mode cancer catalytic therapy

BMEMat, EarlyView.
Sulfur vacancy‐rich ZnS–NCx heterojunctions are engineered as dual‐function nanotransducers, in which channel‐trap‐coupled electronic pathways enable efficient capture and transport of ultrasound‐induced piezoelectrons. This vacancy‐mediated regulation simultaneously enhances sonodynamic activity and biomimetic POD/GSHOx catalysis, triggering a self ...
Songjing Zhong, Zeyu Zhang, Wenting Chen, Quanhong Hu, Hongyi Sun, Ruidong Yin, Qinyu Zhao, Hongbo Fan, Yuanbo Cui, Yuxuan Zhang, Linlin Li   +10 more
wiley   +1 more source

Imaging mechanism of piezoresponse force microscopy of ferroelectric surfaces [PDF]

, 2002
In order to determine the origin of image contrast in piezoresponse force microscopy (PFM), analytical descriptions of the complex interactions between a small tip and ferroelectric surface are derived for several sets of limiting conditions.
Kalinin, Sergei V., Bonnell, Dawn A
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