Results 51 to 60 of about 296,490 (359)

Direct Integration of Polycrystalline Diamond With 3C‐SiC for Enhanced Thermal Management in GaN HEMTs: Impact of Grain Structure and Interface Engineering

Advanced Materials Technologies, EarlyView.
Polycrystalline diamond (PCD) is directly bonded to 3C‐SiC for GaN HEMTs on a 2‐inch wafer using an advanced room‐temperature process. Despite high thermal conductivity at the growth surface, phonon scattering at the fine‐grained nucleation side raises thermal resistance.
Chiharu Moriyama, Zhe Cheng, Zifeng Huang, Yutaka Ohno, Koji Inoue, Yasuyoshi Nagai, Naoteru Shigekawa, Jianbo Liang   +7 more
wiley   +1 more source

Highly Efficient n‐Type Doped Single‐Crystalline Perylene Diimide Microwires via Solution Processing for High‐Performance Photosensors and Photo‐Neuromorphic Devices

Advanced Materials Technologies, EarlyView.
Solution‐processed high‐performance n‐type doped single‐crystalline organic semiconductor microwires (MWs) are reported. n‐Type dopants are located at the terrace edge of the MW, resulting in rapid doping and high interaction. n‐doped MWs show 5,000 times enhanced photosensitivity than evaporated films and high photo‐neuromorphic characteristics by ...
Yonghee Kim, Hye Won Lee, Min Ju Jung, Sangwook Lee, Joon Hak Oh, Eun Kwang Lee   +5 more
wiley   +1 more source

Unveiling Ultrafast Spin‐Valley Dynamics and Phonon‐Mediated Charge Transfer in MoSe2/WSe2 Heterostructures

Advanced Optical Materials, Volume 13, Issue 8, March 13, 2025.
This study reveals the potential to manipulate spin‐valley polarization dynamics in MoSe2/WSe2 heterostructures by quantifying different scattering processes following selective photoexcitation. The results show that these heterostructures enable ultrafast valley‐selective charge transfer, with phonon scattering playing a significant role in the ...
Julian Wagner, Robin Bernhardt, Lukas Rieland, Omar Abdul‐Aziz, Qiuyang Li, Xiaoyang Zhu, Stefano Dal Conte, Giulio Cerullo, Paul H. M. van Loosdrecht, Hamoon Hedayat   +9 more
wiley   +1 more source

Station-Keeping Maneuver Simulation for the Koreasat Spacecraft Using Mission Analysis Software [PDF]

Journal of Astronomy and Space Sciences, 1995
A series of east/west and north/south station-keeping maneuvers were simulated for the KOREASAT spacecraft which has to be maintained within ±0°.05 at the nominal longitude of 116°E. Weekly and biweekly based station-keeping maneuver plannings were used,
Byoung-Sun Lee, Jong Won Eun
doaj  

Mode‐dependent Far‐field Radiation of Circularly Polarized Light by a Single Plasmonic Nanohelix

Advanced Optical Materials, Volume 13, Issue 8, March 13, 2025.
The numerical simulations explored the chiroptical response and far‐field radiation behaviors of single plasmonic nanoantennas transitioning into helical structures. This study highlights the ability of these plasmonic nanohelices to regulate the far‐field directionality of radiation power and circular polarization in plasmon‐exciton coupled systems ...
Yiou Cui, Yilin Chen, Jing Li, Shengyan Wang, Ruiqian Zhang, Zhongyi Chen, Huan Liu, Ximin Cui, Xihang Shi, Biye Xie, Xiaolu Zhuo   +10 more
wiley   +1 more source

Access and mobility management technologies for 6G satellite communications network

Dianxin kexue, 2021
Analsisand outlook for satellite communication access and mobility management technology in 6G network was presented.Firstly, the access technology of current global representative satellite mobile communications system was introduced, as well as the ...
Xiaowen WU, Xiang LING, Lidong ZHU, Zhenfeng JIAO, Jian CHENG, Bo YANG   +5 more
doaj   +2 more sources

The Influence of the Supporting Substrate on Single‐Particle Circular Differential Scattering of DNA Assembled Nanorod Dimers

Advanced Optical Materials, EarlyView.
For most microscopy measurements the sample is placed on a substrate, which causes symmetry breaking, especially relevant for chiral plasmonic nanostructures. DNA origami mediated X‐shaped AuNR dimers showing high structural purity in solution, exhibit significant diversity in lineshapes and signal intensities for their circular differential scattering
Amrita Chakraborty, Ojasvi Verma, Gopal Narmada Naidu, Mihir Dass, Zhenyang Jia, Christy F. Landes, Alessandro Alabastri, Peter Nordlander, Tim Liedl, Stephan Link   +9 more
wiley   +1 more source

A New Class of Diarylethene Compounds that Exhibit Turn‐On Emission: From Aggregation‐Induced Emission to Anti‐Kasha Emission

Advanced Optical Materials, EarlyView.
A new class of diarylethene compounds containing backbone phosphine oxide groups are reported, exhibiting turn‐on aggregation‐induced emission. Side chain functionalization enabled emission color tunability and turn‐on anti‐Kasha emission. Abstract Diarylethenes (DAE) are a well‐known class of photochromic compounds with diverse applications ranging ...
Zhen Xu, Josianne Owona, Qian T. Liu, Sarrah Putwa, Lanting Jiang, Ka‐Ming Tong, Duane Hean, Brian O. Patrick, Keng C. Chou, Claire Tonnelé, Frédéric Castet, David Casanova, Michael O. Wolf   +12 more
wiley   +1 more source

Pressure‐Induced Structural and Optoelectronic Modulations in 2D Dion‐Jacobson Hybrid Lead Iodide Perovskites With a Rigid Spacer

Advanced Optical Materials, EarlyView.
Compression to ≈2.0 GPa results in a non‐monotonic enhancement of the Pb‐I bond distortion, rarely observed in other 2D lead‐iodide hybrid perovskites. The octahedral distortion together with the rigidity of spacer cation are found to play a dominant role in determining the optoelectronic properties of DPDAPbI4 under high pressure.
Aditya Kutty, Jesse Ratté, Rongfeng Guan, Jingyan Liu, Sean Tao, Yanqian Lin, Matthew P. Hautzinger, Willa Mihalyi‐Koch, Song Jin, Yang Song   +9 more
wiley   +1 more source

Scientometric Analysis of Published Scientific Productions in the Field of Satellite Constellations [PDF]

فصلنامه علوم و فناوری فضایی
Satellite constellations consist of similar satellites distributed in a specific orbital pattern to accomplish a joint mission. They are commonly used for global telecommunications, positioning, and remote sensing missions.
Hossein Eftekhari, Pedram Hajipour, Ali Kheirdoost, Hassan Yeganeh   +3 more
doaj   +1 more source