Results 81 to 90 of about 11,230 (303)

Advances in Halide Perovskites for Photon Radiation Detectors

Advanced Materials Technologies, EarlyView.
This work highlights recent progress in perovskite‐based photon radiation detectors, covering organic–inorganic hybrid, inorganic, lead‐free double, and vacancy‐ordered halide perovskites. Their detection performance is compared, material‐specific advantages and challenges are examined, and provides insight into current limitations and future ...
Liangling Wang, Jieqi Wang, Xiaojun Cui, Carsten Ronning   +3 more
wiley   +1 more source

Design of the voltage controlled oscillator

, 2012
This bachelor thesis deals with the issues of voltage controlled oscillators. It analyses their current state and provides the examples of them. It also describes phase locked loop stages and the usage of voltage controlled oscillators in phase locked ...
Richter, Vladimír
core   +1 more source

Light Switchable Ionic Conductivity of Arylazopyrazole Modified Polysiloxanes

Advanced Materials Technologies, EarlyView.
We present a polysiloxane functionalized with a novel arylazopyrazole dye that undergoes reversible photoisomerization. Upon lithium bis(trifluoromethanesulfonyl)imide addition and UV irradiation, the polymer exhibits a shift in tan(d) toward higher frequencies and enhanced ionic conductivity.
Malte S. Beccard, Thulasinath Raman Venkatesan, Michael Bauer, Valentin Razvan Lupu, Philipp Scheidegger, Francesco Taddei, Frank A. Nüesch, Dorina M. Opris   +7 more
wiley   +1 more source

Voltage-Mode and Current-Mode Resistorless Third-Order Quadrature Oscillator

Applied Sciences, 2017
This paper presents the realization of a resistorless third-order quadrature oscillator using two multiple-output current controlled current conveyor transconductance amplifiers (MO-CCCCTAs) and three grounded capacitors.
Hua-Pin Chen, Yuh-Shyan Hwang, Yi-Tsen Ku   +2 more
doaj   +1 more source

A voltage-controlled ring oscillator using InP full enhancement-mode HEMT logic

, 2009
A voltage-controlled ring oscillator (VCO) based on a full enhancement-mode InAIAs/InGaAs/InP high electron mobility transistor (HEMT) logic is proposed. An enhancement-mode HEMT (E-HEMT) is fabricated, whose threshold is demonstrated to be 10 mV.
Dai Yang, Yang Fuhua, Chen Yanling, Du Rui   +3 more
core  

CMOS Active Inductor Based Voltage Controlled Oscillator [PDF]

, 2018
A Tunable Active Inductor (TAI) based Voltage Controlled Oscillator (VCO) for Radio Frequency (RF) applications ranging from 670 MHz - 1.53 GHz is presented. A design of low phase noise and compact VCO is proposed.
P Patel, Dhara, A Thakker, Rajesh, Oza, Shruti   +2 more
core   +1 more source

Transducers Across Scales and Frequencies: A System‐Level Framework for Multiphysics Integration and Co‐Design

Advanced Materials Technologies, EarlyView.
Transducers convert physical signals into electrical and optical representations, yet each mechanism is bounded by intrinsic trade‐offs across bandwidth, sensitivity, speed, and energy. This review maps transduction mechanisms across physical scale and frequency, showing how heterogeneous integration and multiphysics co‐design transform isolated ...
Aolei Xu, Mengyao Xiao, Zhouli Sui, Yinpeng Wang, Daoye Zheng, Yuxin Liu, Luwei Wang, Huajun Liu, Chengkuo Lee   +8 more
wiley   +1 more source

Compensation of temperature-induced frequency drift in resonant microwave measurement systems based on VCO

Технологія та конструювання в електронній апаратурі, 2008
It is shown that the influence of temperature fluctuations on the measurement error of parameters in resonant microwave measurement systems based on voltage-controlled oscillator (VCO) can be minimized through software by means of a special correction ...
O. O. Drobakhin, P. I. Zabolotnyy
doaj  

Large Faraday Rotation in Liquid Crystals With Embedded Paramagnetic Ions (Cu2+, VO2+) at Room Temperature

Advanced Optical Materials, EarlyView.
Large Faraday rotation at room temperature is observed in thin films of discotic copper (Cu2+: 3d9) and vanadyl (VO2+: 3d1) enaminoketone complexes. The large Verdet constant originates from a high density of paramagnetic centers, metal‐ligand p−d hybridization and π orbitals involved in optical transitions (identified by DFT calculations), as well as ...
Karolina Łempicka‐Mirek, Adam Krówczyński, Mateusz Król, Nevill Gonzalez Szwacki, Paulina Rybak, Damian Pociecha, Paweł W. Majewski, Barbara Piętka, Jacek Szczytko   +8 more
wiley   +1 more source

On the modeling of amplitude-sensitive electron spin resonance (ESR) detection using voltage-controlled oscillator (VCO)-based ESR-on-a-chip detectors. [PDF]

Magn Reson (Gott), 2021
Chu A, Schlecker B, Kern M, Goodsell JL, Angerhofer A, Lips K, Anders J.   +6 more
europepmc   +1 more source