Results 91 to 100 of about 943 (216)

Pulse Generation by On‐Chip Dispersion Compensation at 8 µm Wavelength

Laser &Photonics Reviews, EarlyView.
This work demonstrates on‐chip pulse generation at 8 μm$\mathrm{\mu}\mathrm{m}$ using chirped Bragg gratings in SiGe graded‐index photonic circuits to compensate the quadratic phase of quantum cascade laser frequency combs. With this approach pulses as short as 1.39 ps were produced, close to the transform limit, representing a key step toward compact,
Annabelle Bricout, Mathieu Bertrand, Philipp Täschler, Barbara Schneider, Victor Turpaud, Stefano Calcaterra, Davide Impelluso, Marco Faverzani, David Bouville, Jean‐René Coudevylle, Samson Edmond, Etienne Herth, Carlos Alonso‐Ramos, Laurent Vivien, Jacopo Frigerio, Giovanni Isella, Jérôme Faist, Delphine Marris‐Morini   +17 more
wiley   +1 more source

DFT Modeling and Impedance Spectroscopy Analysis of a High Performance Zirconia‐Based Solar Cell

Nano Select, EarlyView.
p‐SnS/n‐CdS heterojunction solar cells with Al‐ZnO/i‐ZnO window layers simulated using SCAPS‐1D and impedance spectroscopy enabled tracking of solar cell parameters. The optimal performance (η = 22.76%, Voc = 0.77 V) was achieved with a 5 µm SnS absorber at Rs = 1Ω.cm−2 and Rsh = 10 kΩ.cm−2.
George G. Njema, Rkia Zari, Elmostafa Elmesbahi, Abderrahmane Elmelouky, Abdelkhalek El Rharib, Abdelaziz Amine, Joshua K. Kibet, Mimoun Zazoui   +7 more
wiley   +1 more source

Anisotropy Analysis of Bamboo and Tooth Using 4‐Angle Polarization Micro‐Spectroscopy

Nano Select, EarlyView.
Super‐resolution via orientation: spatial distribution of specific molecular vibrations are revealed at 1/20 of the diffraction limit. ABSTRACT To investigate the anisotropic properties of biomaterials, two distinct classes are considered as follows: polymer‐based (cellulose in plants) and crystalline‐based (enamel in teeth), each demonstrating ...
Meguya Ryu, Hsin‐Hui Huang, Jitraporn Vongsvivut, Soon Hock Ng, Irma Dumbrytė, Donatas Narbutis, Mangirdas Malinauskas, Saulius Juodkazis, Junko Morikawa   +8 more
wiley   +1 more source

Epitaxy and Phase Stability of 2D Hexagonal Gallium Telluride on Silicon

physica status solidi (RRL) – Rapid Research Letters, EarlyView.
Two‐stage amorphization as a function of annealing temperature of continuous, strain‐free, high‐crystalline‐quality 2D hexagonal gallium telluride on silicon obtained by van der Waals epitaxy. Controlling crystal quality during epitaxial growth is essential for the advancement of novel materials with industrial relevance.
Andrea Pianetti, Stefano Cecchi, Michael Hanke, Jonathan J. Finley, Fabrizio Arciprete, Raffaella Calarco, Eugenio Zallo   +6 more
wiley   +1 more source

Ionic‐Liquid‐Assisted Synthesis of NiTe/CoTe Heterostructure With Te Vacancies in N, P, and F Co‐Doped Hollow Carbon Nanorods for Efficient Alkaline Hydrogen Evolution and High‐Performance Flexible Supercapacitors

Rare Metals, EarlyView.
ABSTRACT Low conductivity, slow ion‐diffusion, and limited reactive sites are common problems in electrocatalysts and electrode materials. In this study, a complex NiTe–CoTe heterojunction with abundant Te vacancies embedded in N, P, and F co‐doped hollow carbon nanorods (NiTe1−x–CoTe1−x/NPFC) was fabricated via a simple ionic liquid‐assisted ...
Mingjie Yi, Shuanghui Lv, Leqian Chu, Song Lei, Lijun Lin, Jianhui Huang, Hao Wang, Jiaheng Zhang   +7 more
wiley   +1 more source

Rational Design of Multifunctional Nano–Architected Coatings for Bipolar Plates in Proton Exchange Membrane Fuel Cells

Rare Metals, EarlyView.
ABSTRACT Proton exchange membrane fuel cells (PEMFCs) require advanced bipolar plate coatings to enhance efficiency, durability, and commercialization potential. This review presents a systematic framework for evaluating and designing bipolar plate coatings, integrating material selection, performance metrics, deposition techniques, and future ...
Shijie Li, Shuai Xiao, Xin Yong, Siyu Qin, Jianbang Ge, Zhe Wang, Zhijing Yu, Xinrui Wang, Yi Lu, Xiaodong Chen, Xuefeng Zhang, Zhenghao Pu, Wei Lin   +12 more
wiley   +1 more source

Interface Issues of Inorganic Solid‐State Electrolytes in Secondary Magnesium Batteries

Rare Metals, EarlyView.
ABSTRACT Solid‐state magnesium batteries (SSMBs) have gained significant attention as promising candidates for next‐generation safe energy storage systems because of the abundance of magnesium (Mg) in the earth's crust, superior energy density, and inherent nonflammability.
Jiren Wang, Yangyang Wang, Jinming Wang, Yong Sun, Jinyu Li, Weihao Yang, Wei Gao, Carlos Fernandez, Qiuming Peng, Guodong Zou   +9 more
wiley   +1 more source

Climate‐Resilient Crop Production Under Agrivoltaics: Experimental Evaluation of Amaranth Production With Semi‐Transparent Photovoltaic Modules in Canada Under Changing Climates

Sustainable Development, EarlyView.
ABSTRACT Climate change threatens global food security, requiring climate‐smart systems that enhance both crop resilience and sustainable energy production. While agrivoltaics is recognized for combining solar power generation with agriculture, its effects on emerging stress‐tolerant crops such as amaranth remain largely unexplored, particularly under ...
Uzair Jamil, Linda Alrayes, Joshua M. Pearce, Raymond Thomas   +3 more
wiley   +1 more source

Evidence for and evaluation of fluorine-tellurium chalcogen bonding. [PDF]

Chem Sci, 2023
Weiss R, Aubert E, Groslambert L, Pale P, Mamane V.   +4 more
europepmc   +1 more source

Opportunities for 2D‐Material‐Based Multifunctional Devices and Systems in Bioinspired Neural Networks

Small, EarlyView.
Bio‐inspired computing offers a route to highly energy‐efficient artificial intelligence. The unique physical properties of two‐dimensional (2D) materials can further enhance such computing approaches. This perspective highlights recent developments in 2D materials‐based neuromorphic devices and discusses future opportunities for integrating such novel
Jin Feng Leong, Maheswari Sivan, Jieming Pan, Zihang Fang, Jianan Li, Zefeng Xu, Shi Zhao, Quanzhen Wan, Evgeny Zamburg, Aaron Voon‐Yew Thean   +9 more
wiley   +1 more source