Results 101 to 110 of about 64,276 (298)

Interface Effects in Ultrathin Silicon on Insulator Films

Advanced Functional Materials, EarlyView.
This work establishes a systematic framework to discriminate how bulk and interface phenomena affect charge transport in ultrathin P‐doped silicon‐on‐insulator (SOI) films. For Si films below 15 nm, electrical characterization demonstrates that interface states drive charge transport, shifting the metal‐insulator transition (MIT) critical dopant ...
Andrea Pulici, Gabriele Seguini, Fabiana Taglietti, Roman Gumeniuk, Riccardo Chiarcos, Michele Laus, Johannes Heitmann, Marco Fanciulli, Michele Perego   +8 more
wiley   +1 more source

Submicron Metasurface Reconfigured Multiband Smart Windows

Advanced Functional Materials, EarlyView.
This work presents a submicron metasurface reconfigured multiband thermochromic smart window. By integrating subwavelength nanostructures into a Fabry−Perot resonator configuration, it mitigates conventional trade‐offs to simultaneously deliver high luminous transmittance and robust solar heating and radiative cooling modulation capabilities ...
Guanya Wang, Shancheng Wang, Bin Li, Xinyi Tian, Rong Liu, Jian Chen, Zhendong Dai, Shouqin Tian, Yi Long   +8 more
wiley   +1 more source

A 120 GHz Hybrid Low Noise Amplifier in 40 nm CMOS

IEEE Access
In this paper, we present a 6-stage 120 GHz hybrid low noise amplifier (LNA) for sub-THz radar systems. To enhance the noise figure (NF) and gain performance of the LNA, we propose a hybrid architecture that utilizes a combination of 2-stage single-ended
Dong Ouk Cho, In Cheol Yoo, Dong-Woo Kang, Bon Tae Koo, Chul Woo Byeon   +4 more
doaj   +1 more source

The Noise Performance of a Multiple-Input-Port and Multiple-Output-Port Low-Noise Amplifier Connected to an Array of Coupled Antennas

International Journal of Antennas and Propagation, 2011
We address the noise characterization of a multiple-input-port and multiple-output-port (MIPMOP) device receiving signals from an array of antennas.
Frédéric Broydé, Evelyne Clavelier
doaj   +1 more source

60GHz low noise amplifier

, 2014
Due to the importance of low noise amplifier in the receiver, it is been placed at the first stage of the receiver front-end. After the signal has passes through the atmosphere, it has been weaken through the air.
Neo, Kah Wei
core  

All‐Solution‐Processed HgTe Quantum Dot Photodetectors for Extended Short‐Wavelength Infrared Range Enhanced by Plasmonic ITO Nanocrystals

Advanced Functional Materials, EarlyView.
All‐solution‐processed, low‐cost extended short‐wavelength infrared photodetectors are realized by coupling colloidal HgTe quantum dots to plasmonic In2O3:Sn,F nanocrystals. Localized surface plasmon resonances boost and spectrally tailor light absorption between 1500 and 3000 nm, enabling responsivities above 40 A W−1.
Kseniia A. Sergeeva, Anastasiia V. Sokolova, Chenxi Guo, Yuanfei Huo, Yulia V. Kuznetsova, Ran An, Aleksandr A. Sergeev, Kam Sing Wong, Tianshuo Zhao, Andrey L. Rogach   +9 more
wiley   +1 more source

Microscopic Origin of Temperature‐Dependent Anisotropic Heat Transport in Ultrawide‐Bandgap Rutile GeO2

Advanced Functional Materials, EarlyView.
Rutile GeO2${\rm GeO}_{2}$ exhibits orientation‐dependent heat transport with temperature‐dependent anisotropy, showing higher cross‐plane thermal conductivity along [001] than along the equivalent in‐plane [100] and [010] directions. Temperature‐dependent TDTR measurements and first‐principles phonon calculations identify the microscopic phonon ...
Pouria Emtenani, Marta Loletti, Felix Nippert, Eduardo Bedê Barros, Zbigniew Galazka, Hans Tornatzky, Christian Thomsen, Juan Sebastián Reparaz, Riccardo Rurali, Markus R. Wagner   +9 more
wiley   +1 more source

Ultra low-noise coherent supercontinuum amplification and compression below 100 fs in an all-fiber polarization-maintaining thulium fiber amplifier [PDF]

, 2019
We report an ultra-low noise, polarization-maintaining, ultrafast Thulium-doped all-fiber chirped pulse amplifier, seeded by a polarized all-normal dispersion (ANDi) supercontinuum (SC) driven by an ultrafast Erbium-fiber laser. The system comprises only
Feurer, Thomas, Spangenberg, Dirk-Mathys, Stepanenko, Yuriy, Kardaś, Tomasz, Dobrakowski, Dominik, Klimczak, Mariusz, Stępniewski, Grzegorz, Rampur, Anupamaa, Heidt, Alexander   +8 more
core   +1 more source

Engineered AuNPs/fMWCNT Nanocomposite Electrodes for High‐Sensitivity Methylglyoxal Sensing in Saliva and Sweat for Non‐Invasive Diabetes Monitoring

Advanced Healthcare Materials, EarlyView.
An AuNPs/fMWCNT nanocomposite‐modified screen‐printed carbon electrode was engineered via sequential electrodeposition and integrated into a 3D‐printed microfluidic platform for ultrasensitive methylglyoxal detection. The non‐invasive sensing platform enables rapid analysis in saliva and sweat, highlighting strong potential for wearable point‐of‐care ...
Ahadul Amin Soshi, Md Younus Ali, Dadbeh Pazuki, Matiar M.R. Howlader   +3 more
wiley   +1 more source

Ultra-widwband CMOS Low Noise Amplifier

, 2007
近年來，自從美國聯邦電信委員會(FCC)將頻譜上 3.1GHz 到 10.6GHz 的頻段分配給 UWB無線通訊系統後，UWB 無線系統的發展受到學術界與工業界的高度關注。UWB 系統是一種低耗電、高傳輸速率的無線通訊技術，其應用領域很廣，包括影像系統、穿透牆壁或地面的雷達顯像、追蹤與監視裝置、以及商業上與家庭娛樂的無線高速傳輸系統等等。而位在 UWB 接收系統的第一級電路，就是低雜訊放大器，由於低雜訊放大器是接收系統的第一級，所以在操作頻率範圍內必須具有很小的雜訊指數(大約3dB)並且要提供夠大的增益(
Huang, Yao-I, 黃耀毅
core