Results 151 to 160 of about 23,229 (304)

Thermoelectric Gating Organic Electrochemical Transistors Enabled by Printable Ionogels With n‐p Convertible Thermopower

open access: yesAdvanced Science, EarlyView.
A type of thermoelectric ionogels with convertible n‐p thermopowers are demonstrated with Seebeck coefficients ranging from ‐3.61 to +9.74 mV K−1. Thus, thermoelectric gating organic electrochemical transistor is achieved by employing ionogel as thermoelectric modules and ionic dielectrics simultaneously, paving the road to self‐powered, highly ...
Xingyu Hu   +8 more
wiley   +1 more source

Determination of the piezoelectric coefficient of monolayers on water surface by Maxwell-displacement-current measurement

open access: yes, 1998
Using the Maxwell-displacement-current (MDC) measurement, the piezoelectric property of monolayers is examined. The equation representing the piezoelectric coefficient is derived in connection with the MDC.
吴晨旭   +4 more
core  

Impedance‐Matched High‐Overtone Thickness‐Shear Bulk Acoustic Resonators With Scalable Mode Volume

open access: yesAdvanced Science, EarlyView.
A bottom‐electrode‐free high‐overtone bulk acoustic resonator is achieved by lateral excitation of antisymmetric thickness‐shear modes on a lithium‐niobate‐on‐silicon platform. Planar electrode geometry eliminates conventional loading along the resonance path and confines acoustic energy within the electrode gap.
Zi‐Dong Zhang   +7 more
wiley   +1 more source

Biomimetic piezoelectric nanocomposite membranes synergistically enhance osteogenesis of deproteinized bovine bone grafts

open access: yes, 2019
Yunyang Bai,1–3 Xiaohan Dai,4 Ying Yin,4 Jiaqi Wang,4 Xiaowen Sun,3 Weiwei Liang,1 Yiping Li,4 Xuliang Deng,1,5,6 Xuehui Zhang3,5,61Department of Geriatric Dentistry, Peking University School and Hospital of Stomatology, Beijing 100081, People ...
Yin Y   +8 more
core  

A Soft Mechanoluminescent Skin for High‐Resolution Optical Tactile Sensing in Human–Machine Interaction

open access: yesAdvanced Science, EarlyView.
A soft mechanoluminescent tactile sensor that converts force directly into light is presented, enabling imaging‐based, wiring‐free touch sensing. By integrating a flexible ML‐skin with CMOS readout, the system achieves high sensitivity, fast response, and high spatial resolution, while maintaining structural simplicity and energy efficiency, offering a
Yu Feng   +11 more
wiley   +1 more source

Microsphere‐Modulated Sensing‐in‐Energy Supercapacitor With Self‐Filtering Ultra‐Large Signal Under High‐g Shocks

open access: yesAdvanced Science, EarlyView.
To overcome severe signal oscillation under extreme impact conditions, this work presents a Sensing‐in‐Energy microdevice which integrates a MEMS inertial structure directly within a supercapacitor electrolyte cavity. Utilizing shock‐driven transient contact and electrolyte damping for signal self‐filtering, it achieves weak‐oscillation, large ...
Zhihao Zheng   +7 more
wiley   +1 more source

Integrated Ultrasonic Platform for Bioelectronic Control through Biological Barriers Based on Metasurface

open access: yesAdvanced Science, EarlyView.
A metasurface‐enabled ultrasonic platform achieves precise multi‐focal control through biological barriers, real‐time physiology‐driven modulation, and simultaneous wireless power and data transmission. By unifying wavefront engineering, closed‐loop feedback, and acoustic communication, this work establishes key enabling technologies toward scalable ...
Chuanxin Zhang   +3 more
wiley   +1 more source

Dynamic method for measurement of piezoelectric coefficients [PDF]

open access: yesActa Crystallographica Section A Foundations of Crystallography, 2006
R. Ochrombel, M. Lindner, L. Bohatý
openaire   +1 more source

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