Results 41 to 50 of about 102,224 (204)

Beyond Charge: Field‐Effect Transistors in Multimodal Biosensing Platforms for Biomolecular Interaction Studies

open access: yesAdvanced Electronic Materials, EarlyView.
This review summarizes the developments in field‐effect transistor (FET)‐based dual‐mode sensor platforms and what can be learned from them. It identifies charge as a crucial factor in biomolecular interactions at interfaces, outlines the challenges of hybrid systems, and highlights their benefits.
Roger Hasler   +4 more
wiley   +1 more source

Single Interdigital Transducer as Surface Acoustic Wave Impedance Sensor

open access: yes, 2017
Surface acoustic wave (SAW) devices are well-known for gravimetric sensor applications. In biosensing applications, chemical-and biochemically evoked adsorption processes at surfaces are detected in liquid environments using delay-line or resonator ...
Schnakenberg, Uwe   +12 more
core   +1 more source

Design and Analysis of Interdigital Electrode Parallel Layout of Multilayer SAW Devices

open access: yesIEEE Access
To obtain high-frequency SAW devices, the interdigital transducer electrodes are prepared narrower and the electrode spacing is smaller, which leads to higher cost and lower reliability of high-frequency SAW devices. In this paper, two other interdigital
Xu Meng, Zhipeng Li
doaj   +1 more source

Al1−xHfxN$\text{Al$_{1-x}$Hf$_{x}$N}$ Thin Films with Enhanced Piezoelectric Responses for GHz Surface Acoustic Wave Devices

open access: yesAdvanced Electronic Materials, EarlyView.
Reactively sputtered wurtzite Al1‐xHfxN thin films, exhibiting strong c‐axis texture and enhanced piezoelectric response, are demonstrated as a cost‐effective alternative to Al1‐xScxN. X‐ray absorption spectroscopy reveals that cross‐gap N 2p–Hf 5d hybridization increases the Born effective charge and enables a multifold increase in piezoelectric ...
Laura I. Wagner   +14 more
wiley   +1 more source

Intrinsically Linear and Robust Capacitive Strain Sensors Based on Area‐Variation Mechanism for Soft Machines

open access: yesAdvanced Intelligent Systems, EarlyView.
An intrinsically linear capacitive strain sensor based on an area‐variation mechanism is demonstrated. Lasermicromachined carbon fiber electrodes encapsulated in PDMS yield exceptional linearity and robustness. Integrated into smart gloves and soft continuum robot, this scalable strategy enables precise gesture recognition and real‐time shape ...
Quanliang Zhao   +9 more
wiley   +1 more source

Interface Engineering in Piezoelectric‐on‐Insulator Platforms: Coupling of Electrons, Photons, and Phonons for Multifunctional Integration

open access: yesElectron, EarlyView.
The underlying interface physics and engineering strategies across key POI material systems, including LiNbO3/Si, LiNbO3/SiC, LiNbO3/diamond, and AlN/diamond, were reviewed. The key engineering strategies such as atomic‐scale bonding optimization, nanostructuring, ultrathin phonon‐bridge interlayers, and ferroelectric domain wall engineering for ...
Yunjia Bao   +6 more
wiley   +1 more source

On an approximate method for calculating filters based on acoustic surface waves

open access: yesArchives of Acoustics, 2016
The work describes an electric filter consisting of interdigital transducers deposited on piezoelectric substrate. A method has been presented for computing the transducer parameters with an assumed amplitude-frequency cha¬racteristic.
Zenon CEROWSKI   +3 more
doaj  

Wide‐range and high‐resolution Young's modulus sensing enabled by a complementary indentation‐protrusion architecture

open access: yesFlexMat, EarlyView.
A tactile sensor integrating indentation and protrusion sensing within a single platform enables accurate perception of object Young's modulus. This complementary architecture expands the detectable Young's modulus range to 25.8–2639.2 kPa and achieves an object recognition accuracy of 94.27%, outperforming indentation‐only (84.59%) and protrusion‐only
Jiasen Xie   +9 more
wiley   +1 more source

A micro ultrasonic motor using a micro-machined cylindrical bulk PZT transducer [PDF]

open access: yes, 2006
In this paper, a micro ultrasonic motor using a micro-machined bulk piezoelectric transducer is introduced. The cylindrical shaped bulk piezoelectric transducer, a diameter of 0.8 mm and a height of 2.2 mm, was developed as stator transducer for ...
Morita, Takeshi   +5 more
core   +1 more source

Skin‐like ultra‐sensitive gas flow sensing based on ionically conductive organogels

open access: yesInfoMat, EarlyView.
An elaborately designed gas flow sensor based on organogels was employed to precisely monitor trace gas flow disturbances. Leveraging a reversible ion‐mediated cooperative effect, the skin‐like gas flow sensor exhibited excellent sensing performance toward gas flow, featuring low operation voltage and high sensitivity.
Jiaying Yun   +11 more
wiley   +1 more source

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