Results 51 to 60 of about 1,814 (188)

A Comparative Study Between a Micromechanical Cantilever Resonator and MEMS-based Passives for Band-pass Filtering Application [PDF]

open access: yes, 2011
Over the past few years, significant growth has been observed in using MEMS based passive components in the RF microelectronics domain, especially in transceiver components.
Anirban Bhattacharya   +7 more
core   +1 more source

Device Performance of Emerging Photovoltaic Materials (Version 6)

open access: yesAdvanced Energy Materials, Volume 16, Issue 7, 18 February 2026.
Efficiency of single junction perovskite (circles), organic (hexagons), dye sensitized (pentagons), kesterite (diamonds), Sb2Se3 (right triangle), and AgBiS2 (left triangles) solar cells at emerging‐pv.org over the last decade. ABSTRACT This 6th annual Emerging PV Report surveys peer‐reviewed advances since August 2024 across perovskite, organic ...
Osbel Almora   +29 more
wiley   +1 more source

High-Acoustic-Impedance Tantalum Oxide Layers for Insulating Acoustic Reflectors [PDF]

open access: yes, 2012
This work describes the assessment of the acoustic properties of sputtered tantalum oxide films intended for use as high-impedance films of acoustic reflectors for solidly mounted resonators operating in the gigahertz frequency range.
Capilla Osorio, José   +5 more
core   +2 more sources

Plasma biomarker progression across the Alzheimer's disease amyloid beta and tau positron emission tomography trajectories

open access: yesAlzheimer's &Dementia, Volume 22, Issue 2, February 2026.
Abstract INTRODUCTION With increased uptake in disease‐modifying treatments for amyloid beta (Aβ) removal, it is important to measure performance of highly sensitive plasma biomarkers to detect the presence of Aβ and tau in cognitively impaired populations.
Rodrigo Cánovas   +21 more
wiley   +1 more source

On the 1/f Frequency Noise in Ultra-Stable Quartz Oscillators

open access: yes, 2006
The frequency flicker of an oscillator, which appears as a 1/f^3 line in the phase noise spectral density, and as a floor on the Allan variance plot, originates from two basic phenomena, namely: (1) the 1/f phase noise turned into 1/f frequency noise via
Giordano, Vincent, Rubiola, Enrico
core   +4 more sources

Solidly Mounted Resonators with Carbon Nanotube Electrodes for Biosensing Applications [PDF]

open access: yes, 2011
The work reported here shows a direct experimental comparison of the sensitivities of AlN solidly mounted resonators (SMR)-based biosensors fabricated with standard metal electrodes and with carbon nanotube electrodes.
,   +13 more
core   +2 more sources

Exciton Dissociation Efficiency in Organic Solar Cells Quantified Via Thermally Induced Acceptor Aggregation and Photoluminescence Analysis

open access: yesAdvanced Energy Materials, Volume 16, Issue 2, 14 January 2026.
This study introduces a method to determine the exciton dissociation efficiency in non‐fullerene acceptor‐based organic solar cells during thermal aging by monitoring the photoluminescence of non‐dissociated excitons. Compared to optical modeling, the approach provides a substantially lower systematic error.
Jared Faisst   +8 more
wiley   +1 more source

Resonant Ultrasonic Particle Manipulators and their Applications in Sensor Systems

open access: yes, 2004
The paper describes the use of ultrasonic standing waves as bulk acoustic wave actuators, exploiting the acoustic radiation forces within the standing wave to move biological cells or other particles.
Harris, N.R.   +3 more
core   +1 more source

Correlations between microstructure and Q-factor of tunable thin film bulk acoustic wave resonators [PDF]

open access: yes, 2011
Correlations between microstructure and Q-factor of tunable solidly mounted Ba(0.25)Sr(0.75)TiO(3) (BSTO) thin film bulk acoustic wave resonators are studied using analysis of test structures prepared at different growth temperatures of the BSTO films ...
Gevorgian, Spartak   +3 more
core   +1 more source

AlScN/GaN Multichannel Heterostructures Grown by Metal–Organic Chemical Vapor Deposition

open access: yesAdvanced Materials Interfaces, Volume 12, Issue 23, December 8, 2025.
Growth of AlScN/GaN multichannel heterostructures by metal–organic chemical vapor deposition is demonstrated for the first time. The growth of such structures is detailed through changes in growth parameters, such as the number of periods and the thickness of the channel layers, as well as structural studies.
Teresa Duarte   +9 more
wiley   +1 more source

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