Results 81 to 90 of about 10,013 (252)

Quartz tuning fork-based high sensitive photodetector by co-coupling photoelectric and the thermoelastic effect of perovskite.

Optics Express, 2023
This paper reports a new strategy for enhancing the photoresponse of a quartz tuning fork (QTF). A deposited light absorbing layer on the surface of QTF could improve the performance only to a certain extent.
Cunguang Lou, J. Dai, Yaxin Wang, Yu Zhang, Yifan Li, Xiu-Ru Liu, Ruikai Li, Yufei Ma   +7 more
semanticscholar   +1 more source

Quartz Tuning Forks and Acoustic Phenomena: Application to Superfluid Helium [PDF]

Journal of Low Temperature Physics, 2014
20 pages, 9 ...
Rysti, J., Tuoriniemi, J.
openaire   +2 more sources

Cyclic Olefin Copolymers as Versatile Materials for Advanced Engineering Applications

Advanced Functional Materials, EarlyView.
Cyclic olefin copolymers (COCs) are presented as highly versatile materials combining tunable synthesis, excellent optical properties, and mechanical robustness. Their potential spans microfluidics, bioengineering, and advanced electronics, while emerging self‐healing and sustainable solutions highlight future opportunities.
Giulia Fredi, Norma Mallegni, Andrea Dorigato, Mario Milazzo   +3 more
wiley   +1 more source

Comparison and excitation optimization of commercial quartz tuning forks for QEPAS

Frontiers in Physics
Quartz-enhanced photoacoustic spectroscopy (QEPAS) is a powerful technique for trace gas sensing, in which the quartz tuning fork (QTF) plays a key role in determining detection performance.
Lei Peng, Yihua Qian, Yaohong Zhao, Qing Wang, Yifeng Zhao, Qiang Fu   +5 more
doaj   +1 more source

Moving Beyond Oligoethers: Polar Side‐Chain Engineering for Aqueous Mixed Ionic–Electronic Conductors

Advanced Functional Materials, EarlyView.
We investigate how side‐chain chemistry and hydrogen bonding affect electrochemical doping in poly(propylenedioxythiophene) polymers. Replacing oligoether side chains with hydroxyl or carboxylic acid groups nearly triples electrochemical conductivity.
Joshua M. Rinehart, Anna M. Österholm, James F. Ponder Jr., Lucas Q. Flagg, Lee J. Richter, John R. Reynolds   +5 more
wiley   +1 more source

A MICROGYRO WITH QUARTZ FORK SENSOR [PDF]

, 2020
Mainly targeting the automotive application, Systron Donner's MicroGyro with quartz fork sensor uses a vibrating quartz tuning fork to sense angular rate, acting as a Coriolis sensor, coupled to a similar fork as a pickup to produce the rate output ...
Frank Wang
core  

A highly sensitive LITES sensor based on a multi-pass cell with dense spot pattern and a novel quartz tuning fork with low frequency

Opto-Electronic Advances
A highly sensitive light-induced thermoelectric spectroscopy (LITES) sensor based on a multi-pass cell (MPC) with dense spot pattern and a novel quartz tuning fork (QTF) with low resonance frequency is reported in this manuscript.
Yahui Liu, Shunda Qiao, Chao Fang, Ying He, Haiyue Sun, Jian Liu, Yufei Ma   +6 more
semanticscholar   +1 more source

Analysis of Size Dependence of Quality Factor of Quartz-Crystal Tuning Fork

, 2011
We derived an approximate formula for the quality factor (Q value or Q) of a quartz-crystal tuning fork by applying the approximate calculation method developed by Landau et al. and Lifshitz et al.
Hideaki Itoh, Tatsuya Seki
core   +1 more source

Off-Beam Acoustic Micro-Resonator for QEPAS Sensor with a Custom Quartz Tuning Fork

Atmosphere
Quartz-enhanced photoacoustic spectroscopy (QEPAS) has shown great promise for monitoring greenhouse gases and pollutants with a high measurement accuracy and limit of detection.
Yong Wang, Gang Wang, Jiapeng Wang, C. Feng, Qingyuan Tian, Yifan Chen, Ruyue Cui, Hongpeng Wu, Lei Dong   +8 more
semanticscholar   +1 more source

Mixed‐Metal Promotion in a Manganese‐Molybdenum Oxynitride as Catalyst to Integrate C─C and C─N Coupling Reactions for the Direct Synthesis of Acetonitrile from Syngas and Ammonia

Advanced Materials, EarlyView.
Transition metal oxy/carbo‐nitrides show great promise as catalysts for sustainable processes. A Mn‐Mo mixed‐metal oxynitride attains remarkable performance for the direct synthesis of acetonitrile, an important commodity chemical, via sequential C─N and C─C coupling from syngas (C1) and ammonia (N1) feedstocks.
M. Elena Martínez‐Monje, Wilson Henao, Tania Rodenas, Patricia Concepción, Virginia Pérez Dieste, Alexander Missyul, Giovanni Agostini, Gonzalo Prieto   +7 more
wiley   +1 more source