Results 11 to 20 of about 15,408,531 (299)

Solvent Engineering Approach Toward Optimized Phase and Morphology of CsPbBr3 Films for Efficient and Stable Planar Perovskite Solar Cells and Photodetectors

open access: yesAdvanced Energy & Sustainability Research, 2022
All‐inorganic perovskite CsPbBr3 has drawn a lot of interest as an active layer applied in photovoltaics due to its outstanding stability in ambient air.
Kaiyuan Xu   +9 more
doaj   +1 more source

Transmission of 4096-QAM OFDM at D-band

open access: yesOptics Express, 2023
We experimentally demonstrate the transmission of multi-order quadrature amplitude modulation (QAM) orthogonal frequency division multiplexing (OFDM) millimeter wave signals at D-band. Meanwhile, the system nonlinearity analysis is also given, which is originated from the unsatisfactory optoelectronic devices, multi-order QAM and the high peak-to ...
Li zhao, Kaihui Wang, Wen Zhou
openaire   +2 more sources

Resurgence of superconductivity and the role of dxy hole band in FeSe1−x Te x

open access: yesCommunications Physics, 2023
Iron-chalcogenide superconductors display rich phenomena caused by orbital-dependent band shifts and electronic correlations. Additionally, they are potential candidates for topological superconductivity due to the band inversion between the Fe d bands ...
Archie B. Morfoot   +6 more
doaj   +1 more source

Beamforming D-band phased array microstrip antennas

open access: yesSensors International, 2022
This paper presents a beamforming D-band phased array in proximity coupled fed microstrip antennas design at 132–160 ​GHz frequency working range.
Uri Nissanov (Nissan), Ghanshyam Singh
doaj   +1 more source

Strain and ligand effects in Pt-Ni alloys studied by valence-to-core X-ray emission spectroscopy

open access: yesScientific Reports, 2021
Experimental detection of the Pt 5d densities of states in the valence band is conducted on a series of Pt-Ni alloys by high energy resolution valence-to-core X-ray emission spectroscopy (VTC-XES) at the Pt L3-edge.
Jiatang Chen   +3 more
doaj   +1 more source

A D-Band Hybrid-Type CMOS Phase Shifter with Full 360° Phase Coverage [PDF]

open access: yesJournal of Electromagnetic Engineering and Science
This paper presents a D-band phase shifter fabricated using 65-nm CMOS technology that provides continuous full 360° phase shift. To achieve moderate insertion loss with low DC power, a hybrid-type topology is adopted by combining a 180° reflection-type ...
Eunjung Kim, Sanggeun Jeon
doaj   +1 more source

A Circularly Polarized Antenna in D-Band [PDF]

open access: yes2021 IEEE Texas Symposium on Wireless and Microwave Circuits and Systems (WMCS), 2021
In this paper a 140 GHz circularly polarized antenna is studied. The motivation of this work is to propose a suitable antenna configuration to reduce the subsequent manufacturing cost and complexity. The resultant antenna consists of a circular waveguide feed and a dielectric cover which is used to increase antenna directivity.
Gu, Chao, Bai, Lu, Cheng, Fei, Yin, Shuo
openaire   +2 more sources

Ligand field tuning of d-orbital energies in metal-organic framework clusters

open access: yesCommunications Chemistry, 2023
Linker functionalization is a common route used to affect the electronic and catalytic properties of metal-organic frameworks. By either pre- or post-synthetically installing linkages with differing linker moieties the band gap, workfunction, and exciton
Brian G. Diamond   +2 more
doaj   +1 more source

Tuned d-band states over lanthanum doped nickel oxide for efficient oxygen evolution reaction

open access: yesNano Materials Science, 2023
The d-band state of materials is an important descriptor for activity of oxygen evolution reaction (OER). For NiO materials, there is rarely concern about tuning their d-band states to tailor the OER behaviors.
Ziyi Xiao   +9 more
doaj   +1 more source

Disruptive TRX design for the D-band

open access: yes, 2023
This paper presents an architecture for broadband wireless transceivers operating in the D-band with the aim of covering tens of GHz of band over the air with a limited bandwidth per channel at the baseband. The main idea is to combine several baseband channels in a multi-channel radio-frequency (RF) signal.
Gonzalez Jimenez, José Luis   +9 more
openaire   +4 more sources

Home - About - Disclaimer - Privacy