Results 101 to 110 of about 13,492 (249)

Evolution of Collisionally Merged Massive Stars [PDF]

open access: bronze, 2007
Takeru K. Suzuki   +5 more
openalex   +1 more source

Single‐Crystalline Lateral p‐SnS/n‐SnSe van der Waals Heterostructures by Vapor Transport Growth with In Situ Bi Doping

open access: yesAdvanced Functional Materials, EarlyView.
In‐situ doping during growth of SnSe and subsequent attachment of SnS produces high‐quality lateral pn‐heterojunctions between van der Waals semiconductors. Electron beam induced current measurements demonstrate electrically active pn‐junctions, paving the way for devices that harness charge separation at lateral interfaces in layered heterostructures.
Peter Sutter   +4 more
wiley   +1 more source

Does a Morphotropic Phase Boundary Exist in ZrxHf1‐xO2‐Based Thin Films?

open access: yesAdvanced Functional Materials, EarlyView.
This study investigates 6 nm zirconium‐rich hafnium‐zirconium oxide thin–film metal–insulator–metal capacitors using a combination of experimental methods and machine learning–based molecular dynamics simulations to provide insight into the physical mechanisms that enhance the dielectric constant near 0 V and attribute it to the field‐induced ...
Pramoda Vishnumurthy   +9 more
wiley   +1 more source

Massive stars in Cygnus OB2

open access: yes, 2019
Esta tesis es un compendio de tres art´ıculos (m´as un cap´ıtulo adicional) donde se recogen los frutos de un estudio enfocado en Cygnus OB2, una de las asociaciones de formaci´on estelar OB m´as cercana, masiva y joven de nuestra Galaxia. Esta regi´on supone un excelente lugar donde estudiar las propiedades, formaci´on y evoluci´on de estrellas ...
openaire   +2 more sources

Broadband, Flexible, Skin‐Compatible Carbon Dots/Graphene Photodetectors for Wearable Applications

open access: yesAdvanced Functional Materials, EarlyView.
Broadband, flexible photodetectors integrating nitrogen‐rich carbon dots with single‐layer graphene on plastic substrates are demonstrated. A biocompatible chitosan–glycerol electrolyte enables efficient low‐voltage gating and on‐skin operation. The devices exhibit ultraviolet‐to‐near‐infrared response, mechanical robustness under bending, and verified
Nouha Loudhaief   +20 more
wiley   +1 more source

Recomposable Layered Metasurfaces for Wavelength‐Multiplexed Optical Encryption via Modular Diffractive Deep Neural Networks

open access: yesAdvanced Functional Materials, EarlyView.
Modular diffractive deep neural network metasurfaces encode and reconstruct holograms across layer combinations and wavelengths, enabling secure, multifunctional operation. Each layer acts independently yet composes jointly, yielding up to m(2N −1) channels for m wavelengths and N layers.
Cherry Park   +4 more
wiley   +1 more source

First submillimeter lights from Dome A: Tracing the carbon cycle in the feedback of massive stars. [PDF]

open access: yesSci Adv
Gong Y   +40 more
europepmc   +1 more source

Low-metallicity massive single stars with rotation

open access: diamond
Dorottya Szécsi   +7 more
openalex   +1 more source

Gaia-4b and 5b: Radial Velocity Confirmation of Gaia Astrometric Orbital Solutions Reveal a Massive Planet and a Brown Dwarf Orbiting Low-mass Stars [PDF]

open access: green
Guđmundur Stefánsson   +33 more
openalex   +1 more source

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