Results 31 to 40 of about 860 (255)

Ta2O5/SiO2 insulating acoustic mirrors for AlN-based X-band BAW resonators [PDF]

, 2011
This work describes the performance of AlN-based bulk acoustic wave resonators built on top of insulating acoustic reflectors and operating at around 8 GHz.
Capilla Osorio, José, Clement Lorenzo, Marta, Devos, Arnaud, Felmetsger, Valeriy, Olivares Roza, Jimena   +4 more
core   +1 more source

Bacteria detection with high-frequency gravimetric biosensors based on AlN thin film resonators [PDF]

, 2016
Gravimetric sensors based on shear-mode resonators are suitable for in-liquid detection of biological species because their quality factors barely decrease during in-liquid operation.
Clement Lorenzo, Marta, Díaz Durán, Bárbara, Escolano Moyano, José Miguel, Iborra Grau, Enrique, Mirea, Teona, Olivares Roza, Jimena, Sangrador García, Jesús   +6 more
core   +2 more sources

High frequency surface acoustic wave resonator-based sensor for particulate matter detection [PDF]

, 2016
This paper describes the characterization of high frequency Surface Acoustic Wave Resonator-based (SAWR) sensors, for the detection of micron and sub-micron sized particles.
Cole, Marina, Gardner, J. W., Thomas, Sanju, Villa-López, Farah Helue   +3 more
core   +1 more source

Direct Metal Deposition of Graphene–Ti28Nb35.4Zr Matrix Composites With Enhanced Mechanical, Corrosion, and Biocompatibility Properties for Bone Implants

Advanced Engineering Materials, EarlyView.
Graphene nanoplatelet (0.1 wt.%) reinforcement significantly enhances the performance of β Ti‐28Nb‐35.4Zr alloy. Grain refinement, reduced water contact angle, and improved surface characteristics promote osteoblast adhesion and complete surface coverage after 7 days.
Khurram Munir, Jixing Lin, Yuncang Li, Li Zhu, Paul F. A. Wright, Cuie Wen   +5 more
wiley   +1 more source

Photoswitching Conduction in Framework Materials

Advanced Functional Materials, EarlyView.
This mini‐review summarizes recent advances in state‐of‐the‐art proton and electron conduction in framework materials that can be remotely and reversibly switched on and off by light. It discusses the various photoswitching conduction mechanisms and the strategies employed to enhance photoswitched conductivity.
Helmy Pacheco Hernandez, Stefan Hecht, Wolfgang Wenzel, Lars Heinke, Mariana Kozlowska   +4 more
wiley   +1 more source

Experimental comparison of FBARs and SMRs responsitivities to mass loadings [PDF]

, 2012
The utilisation of thin film technology to develop film bulk acoustic resonators (FBARs) and solidly mounted resonators (SMRs), offers great potential to outperform the sensitivity and minimum detection limit of gravimetric sensors. Up to now, the choice
Capilla Osorio, José, Clement Lorenzo, Marta, Flewitt, A.J., García-Gancedo, Luis, Iborra Grau, Enrique, Luo, J.K., Milne, W.I., Olivares Roza, Jimena, Pedrós Ayala, Jorge   +8 more
core   +1 more source

Magnetic Control of Chiral Hybridized Phonon Magnetic Moments in Ferrimagnets Fe2‐xZnxMo3O8

Advanced Functional Materials, EarlyView.
Helicity‐resolved magneto‐Raman spectroscopy reveals magnetic control of chiral phonon magnetic moments in polar ferrimagnet (ZnxFe2−xMo3O₈). Large spontaneous zero‐field phonon splittings, selective phonon–magnon coupling, and asymmetric Zeeman responses demonstrate that phonon chirality is governed by magnon‐phonon coupling and magnetization.
Youngsu Choi, Dirk Wulferding, Amit Pawbake, Clément Faugeras, Sivasakthi Kuppusamy, Raman Sankar, Gichan Son, Jeongwoo Kim, Kwang‐Yong Choi   +8 more
wiley   +1 more source

Formation of Stable Amorphous Calcium Phosphate and Collagen Assemblies by a Versatile Spray‐Drying Approach

Advanced Functional Materials, EarlyView.
Amorphous calcium phosphate (ACP) microparticles with long‐term and thermal stability are prepared with or without collagen using a scalable one‐pot spray‐drying process. Under simulated physiological conditions, they crystallize into biomimetic bone mineral and, when combined with collagen, form extrudable, fibrillar bone‐like 3D constructs.
Camila Bussola Tovani, Nessma Bennaceur, Celina Benkhellat, Tristan Georges, Clara Doisneau, Vaskar Sardhalia, Thierry Azaïs, Flora Lemaire, Halima Kerdjoudj, Mohamed Selmane, Capucine Sassoye, Marie Albéric, Cédric Boissière, Nadine Nassif   +13 more
wiley   +1 more source

Epitaxial ZnO piezoelectric layer on SiO2/Mo solidly mounted resonator fabricated using epitaxial Au sacrificial layer

Applied Physics Express
In solidly mounted resonator (SMR) type of bulk acoustic wave resonator, it is difficult to fabricate single crystalline piezoelectric thin films in a bottom-up process due to the amorphous SiO _2 in the low acoustic impedance layer of the acoustic Bragg
Satoshi Tokai, Takahiko Yanagitani
doaj   +1 more source

Characterization of Amorphous Tantalum Oxide for Insulating Acoustic Mirrors [PDF]

, 2011
This work describes the assessment of the acoustic properties of sputtered tantalum oxide films intended as high impedance films for the acoustic isolation of bulk acoustic wave devices operating in the GHz frequency range.
Capilla Osorio, José, Clement Lorenzo, Marta, Devos, Arnaud, Iborra Grau, Enrique, Olivares Roza, Jimena, Sangrador García, Jesús   +5 more
core   +3 more sources