Results 111 to 120 of about 2,694,809 (245)

Phase Engineering for Enhanced Piezoresponse in P(VDF‐TrFE) and Its Composites

Advanced Materials Interfaces
The negative piezoelectricity in ferroelectric polymers cannot be fully explained by their crystal structure alone. The semi‐crystalline nature of these materials suggests a coupling between the intermixed crystalline and amorphous phases. In this study,
Soyun Joo, Yoonah Ko, Rama K. Vasudevan, Seungbum Hong   +3 more
doaj   +1 more source

Flexoelectric Suppression of Interfacial Carrier Loss in BaTiO3 Thin‐Film Bulk Photovoltaic Systems

Advanced Science, EarlyView.
In single‐crystalline BaTiO3 thin films, flexoelectric strain gradients strongly enhance photocurrent by suppressing interfacial carrier loss. Loading experiments reveal a ∼35‐fold photocurrent increase with applied force. Self‐consistent electrostatic modeling shows that strain gradients reshape the interfacial potential landscape, strengthen local ...
Minwoo Jang, Hyunkyu Lim, Sanghoon Yeom, Jaewhan Oh, Yongsoo Yang, Hyungwoo Lee   +5 more
wiley   +1 more source

Revisiting contrast mechanism of lateral piezoresponse force microscopy

, 2023
Piezoresponse force microscopy (PFM) has been widely used for nanoscale analysis of piezoelectric properties and ferroelectric domains. Although PFM is useful because of its simple and nondestructive features, PFM measurements can be obscured by non ...
Yeom, Jiwon, Hong, Seungbum, Kim, Jaegyu, Cho, Seongwoo, Eom, Seongmun   +4 more
core  

Magnetoelectric Nanoparticles Enable Modulation of Cortical Networks by Low‐Intensity Static Magnetic Fields In Vitro

Advanced Science, EarlyView.
Neuromodulation strategies are increasingly needed to stimulate, restore, or replace altered neuronal activity in disease. Cobalt ferrite‐barium titanate (CFO–BTO) magnetoelectric nanoparticles convert low‐intensity static magnetic fields into local electrical modulation of cortical networks.
Nathalia Cancino‐Fuentes, Alejandro Suarez‐Perez, Elric Zhang, Hao Ye, Marta Bonato, Joana Covelo, Vitaly Pustovalov, Anton Guimera‐Brunet, Xavi Illa, Valentin Gantenbein, Cagatay M. Oral, Marta Parazzini, Salvador Pané, Maria V. Sanchez‐Vives   +13 more
wiley   +1 more source

Quantitative determination of tip parameters in piezoresponse force microscopy [PDF]

, 2007
One of the key limiting factors in the quantitative interpretation of piezoresponse force microscopy (PFM) is the lack of knowledge on the effective tip geometry. Here the authors derive analytical expressions for a 180 degrees domain wall profile in PFM
Sergei V. Kalinin, Jesse, S., Venkatraman Gopalan, Rodriguez, Brian J., Anna N. Morozovska, Stephen Jesse, Brian J. Rodriguez, Kalinin, S. V., et al., Eugene A. Eliseev   +9 more
core   +1 more source

Piezoelectric Effect and Electroactive Phase Nucleation in Self-Standing Films of Unpoled PVDF Nanocomposite Films

Nanomaterials, 2018
Novel polymer-based piezoelectric nanocomposites with enhanced electromechanical properties open new opportunities for the development of wearable energy harvesters and sensors.
Marco Fortunato, Chandrakanth Reddy Chandraiahgari, Giovanni De Bellis, Paolo Ballirano, Francesca Sarto, Alessio Tamburrano, Maria Sabrina Sarto   +6 more
doaj   +1 more source

Electronic Chip‐Mimetic Medical Implants for Controllable Sonothermal Treatments

Advanced Science, EarlyView.
Inspired by the thermal effect of working electronic chips, which consist of various heterostructures, an sonothermal‐responsive platform has been developed through constructing metal‐semiconductor interface on implants. Biofilm infection and deep vein thrombosis can be successfully treated by controllable ultrasound treatments.
Zhengdong Zhang, Pan Liu, Jie Lei, Shuchang Peng, Qiu Chen, Wei Guan, Yizhou Zhu, Gang Liu, Xiaobo Feng, Cao Yang, Lei Tan   +10 more
wiley   +1 more source

Investigation of additional responses caused by sample surface topography in piezoresponse force microscopy measurement

Nihon Kikai Gakkai ronbunshu
The purpose of this study is to elucidate the origin of the additional response signals arising from the surface topography of samples during piezoresponse force microscopy (PFM) measurements.
Shotaro IKEMOTO, Masataka ABE, Azusa N. HATTORI, Takashi SUMIGAWA   +3 more
doaj   +1 more source

Ferroelectric domains in epitaxial PbxSr1−xTiO3 thin films investigated using X-ray diffraction and piezoresponse force microscopy

APL Materials, 2016
We present a detailed study of compressively strained PbxSr1−xTiO3 thin films grown by off-axis radio frequency magnetron sputtering on (001)-oriented Nb-doped SrTiO3 substrates. Film tetragonality and the ferroelectric critical temperatures are measured
S. Fernandez-Peña, C. Lichtensteiger, P. Zubko, C. Weymann, S. Gariglio, J.-M. Triscone   +5 more
doaj   +1 more source

Piezoresponse force microscopy of ferroelectric thin films [PDF]

, 2009
This thesis focuses on ferroelectric thin film characterization through Piezoresponse Force Microscopy (PFM) technique. During the last decades ferroelectric thin films have emerged as an interesting subject for nanoscale applications such as Micro- and ...
Morelli, Alessio,, Morelli, Alessio
openaire   +11 more sources