Results 71 to 80 of about 11,743,098 (262)

A novel tunable transmission line and its application to a phase shifter

, 2005
This letter describes the design of a novel transmission line, where characteristic impedance can be adjusted electronically, and its application to a phase shifter.
Hong, Jia Sheng, Chun, Young Hoon
core   +1 more source

Structure‐Guided Balancing of Ambipolar Transport Enables Symmetric Switching in Heterojunction Bilayer Organic Transistor Inverters

Advanced Functional Materials, Volume 36, Issue 86, 26 October 2026.
Balancing the spatially separated p‐ and n‐type transport pathways in heterojunction‐bilayer OTFTs enables symmetric inverter switching (VM ≈ 0.5VDD), whereas discrete integration of unipolar OTFTs gives polarity‐dependent and resistive responses. ABSTRACT High inverter performance in ambipolar organic electronics requires balanced channel strengths ...
Sohyun Choi, Young Yong Kim, Ji Ho Youk, Hoichang Yang   +3 more
wiley   +1 more source

Charge‐Polarized Ni─S4 Single‐Atom Sites Drive Selective Photoreforming of Poly(lactic acid) to Lactate and Hydrogen

Advanced Functional Materials, EarlyView.
Atomically dispersed Ni–S4 sites on CdS nanorods induce interfacial charge polarization, directing photogenerated electrons to H2 evolution and holes to selective ester‐bond cleavage of poly(lactic acid). Without sacrificial reagents, this charge‐coupled system produces lactate while suppressing overoxidation, achieving an H2 evolution rate of 41.74 ...
Yu Yao, Panpan Zhang, Jinqiang Zhang, Xi‐lin Wu, Tara Pukala, Yifei Wang, Bernt Johannessen, Shaobin Wang, Xiaoguang Duan   +8 more
wiley   +1 more source

Hopping‐Mediated Zero‐Bias Photocharge Retention in Solution‐Processed Van Der Waals Heterostructures

Advanced Functional Materials, EarlyView.
Liquid–liquid interface assembly enables the fabrication of solution‐processed MoS2 and WSe2 centimeter‐scale, nanometer‐thick type‐II heterostructures on paper. Interfacial charge separation and hopping‐limited recombination produce rectification and persistent photocharge retention at zero bias.
Aniello Pelella, Andrea Sessa, Yi‐Chen Tsai, Xuzhao Liu, Abdul Mannan, George Greaves, Yahya Saboon, Ben Spencer, Antonio Di Bartolomeo, Cinzia Casiraghi, Jessica Boland, Alessandro Grillo   +11 more
wiley   +1 more source

Design of the Broad Band Phase Shifter for DTV Receiver

, 2003
??? ??????????????? DTV(Digital TV) ?????? ????????? ???????????? ????????? ?????? ???????????? ????????? ?????? ???????????? ???????????? ?????? ????????? DTV ??????????????? 470 MHz?????? 860 MHz?????? 180tex:\small\textstyle$^{\circ}$ ????????? ??????
Kim, Jong phil, Han, Ki Jin, Nah, Hyeong GI   +2 more
core  

Circularly Polarized Electroluminescence and Spin‐Polarized Carrier Transport in Chiral‐Doped Polymer Films

Advanced Functional Materials, EarlyView.
Chiral dopants induce supramolecular chirality in an achiral polymer (PFO), generating spin‐polarized carriers via the chiral‐induced spin selectivity (CISS) and suggesting a possible contribution of Spin‐polarized carrier transport to circularly polarized electroluminescence (CPEL).
Kazuyuki Asahi, Masashi Hasegawa, Yuuya Nagata, Tamaki Nakano, Hiroyuki Nishikawa   +4 more
wiley   +1 more source

Complex loads for millimeter-wave digital phase shifter design

, 2011
The design of a reflection-type digital phase shifter comprising complex loads at the coupler's 3dB output ports is presented. These loads provide the possibility of adjusting both the phase increment and the phase frequency response.
Stark, Alexander, Jacob, Arne F.
core   +1 more source

Advanced characterization of a W-band phase shifter based on liquid crystals and MEMS technology

, 2012
In this paper, we present a continuously tunable phase shifter realized in MEMS technology. Varactors with liquid crystal as a tunable dielectric layer underneath gold bridges are used to build a loaded line phase shifter.
S. Bildik, C. Fritzsch, Giacomozzi, Flavio, Colpo, Sabrina, R. Jakoby, O. H. Karabey   +5 more
core   +1 more source

Photoinduced Charge Separation in Single‐Component Squaraine Films: The Key Role of Electrostatic Disorder

Advanced Functional Materials, EarlyView.
ABSTRACT Neat films of organic dyes are an interesting technological platform for solar cells and photodetectors. Recently, the conventional biphasic bulk‐heterojunction paradigm for photoinduced charge separation was challenged by the observation that charge carriers can be photogenerated in single‐component materials. A comprehensive experimental and
Davide Giavazzi, João Pedro Ferreira Assunção, Michael Bauer, Matthias Diethelm, Wei‐Hsu Hu, Mohammad Jafarpour, Roland Widmer, Antonia Neels, Dimitrios Sapalidis, Bruno F. B. Silva, Roland Hany, Frank Nüesch, Anna Painelli   +12 more
wiley   +1 more source

Design for a linear voltage-controlled 360°-analog phase shifter

, 2010
The article presents the design of a linear voltage-controlled 360° analog phase shifter operating at 2.2 GHz. It is a reflection-type with a simple and compact structure, using a λ/4-coupled-line coupler with the output ports terminated with identical ...
Yuk, TI, Xiao, MX, Cheung, SW, T. I. Yuk, M. X. Xiao, S. W. Cheung   +5 more
core   +1 more source