Results 241 to 250 of about 11,988 (287)

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

open access: yesAdvanced 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   +7 more
wiley   +1 more source

Dual‐Wavelength Vat Photopolymerization With Dissolvable, Recyclable Support Structures

open access: yesAdvanced Materials Technologies, EarlyView.
Selective solubility vat photopolymerization (SSVP) uses a single resin to produce dissolvable thermoplastics and insoluble thermosets in a single 3D print. Wavelength‐selective curing and thermal post‐processing provide 3D spatial control over dissolution kinetics, enabling dissolvable support structures and programmable dissolution profiles.
Nicholas S. Diaco   +7 more
wiley   +1 more source

Surface Oxidation of 2D γ‐Indium Sulfide Nanoplatelets and Its Impact on Photoluminescence

open access: yesAdvanced Photonics Research, EarlyView.
Photoluminescence of defective 2D γ‐In2S3 can be modulated after exposure to air or oxygen‐containing ligands. Cryogenic photoluminescence measurements reveal that a new acceptor level is introduced upon oxidation, modulating the relative intensity of the emission bands.
Leyre Aldaz‐Caballero   +6 more
wiley   +1 more source

Effect of Nanoparticle Distribution on Photothermal Absorption in Binary Mixtures of Colloidal Supraballs

open access: yesAdvanced Photonics Research, EarlyView.
This work combines molecular dynamics and finite‐difference time‐domain computational approaches to study the photothermal properties of melanin nanoparticle–based supra‐assemblies. Based on the results of this study, the binary mixtures of melanin and silica with higher concentrations of melanin and with more segregated levels of mixing are able to ...
Hanieh Mohsenzadeh Hedeshi   +6 more
wiley   +1 more source

Refuting `a new theory for X-ray diffraction' - a reciprocal-space approach. [PDF]

open access: yesActa Crystallogr A Found Adv
Vlieg E, Tinnemans P, de Gelder R.
europepmc   +1 more source

High‐Isolation LCoS‐Based Optical Switch with Phase Hologram Parameter Optimization

open access: yesAdvanced Photonics Research, EarlyView.
A 1 × 9 liquid crystal on silicon (LCoS)‐based optical switch is experimentally demonstrated, revealing that the worst‐case port isolation exceeds 37 dB within the wavelength range of 1460–1540 nm. This work offers an alternative route for the development of optical switches with a large number of ports and high isolation, applicable to large‐capacity ...
Linbojie Huang   +8 more
wiley   +1 more source

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