Results 101 to 110 of about 42,237 (297)

Bandgap Tuning of β‐(AlxGa1‐x)2O3 Nanosheets via Liquid Metal Interface Engineering

open access: yesAdvanced Optical Materials, EarlyView.
Ultrathin β‐(AlxGa1‐x)2O3 nanosheets with controlled composition are synthesized via low‐temperature squeeze‐printing of Al─Ga liquid alloys. Aluminium preferentially migrates to the surface of the liquid alloy, forming Al‐rich oxide layers with tunable bandgaps up to 6.4 eV. This compositionally precise approach enables the fabrication of 2D ultrawide‐
Somayeh Rafiezadeh   +8 more
wiley   +1 more source

Oligomerization‐Induced Supramolecular Glass with Superior Processability and Optical Functions

open access: yesAdvanced Optical Materials, EarlyView.
Oligomerization‐induced supramolecular glass (BGG) is formed via a catalyst‐free melt‐quenching strategy from benzoguanamine. The in situ formation of diverse oligomers suppresses crystallization, enabling glass formation. BGG exhibits a high Tg (100.1 °C), polymer‐like modulus, and bright aggregation‐induced emission, and is readily processed into ...
Zixuan Liu   +9 more
wiley   +1 more source

MINERALOGY OF INCLUSIONS IN CORUNDUM FROM THE MINE NO. 418, ILMEN STATE RESERVE, SOUTH URALS [PDF]

open access: yesМинералогия, 2018
Corundum crystals with rims of spinel and a wide spectrum of inclusions are studied from actinolite-mica veins in altered ultramafic rocks located among metaterrigenous rocks of the Ilmeny-Vishnevogorsk polymetamorphic complex.
M.A. Rassomakhin, V.A. Kotlyarov
doaj  

Mitigating Losses in Hyperbolic Asymptotic Eigenmodes

open access: yesAdvanced Photonics Research, EarlyView.
Herein, hyperbolic asymptotic eigenmodes, high‐k modes aligned with asymptotic directions in hyperbolic metamaterials, are introduced. By tuning permittivity tensors to balance loss compensation (Re(ε∥)/Re(ε⊥)=Im(ε∥)/Im(ε⊥))$\left(\right. \text{Re} \left(\right. \left(\epsilon\right)_{\parallel} \left.\right) / \text{Re} \left(\right.
Lu Song   +5 more
wiley   +1 more source

Advances in GaN‐on‐Glass for Optoelectronic Devices: Progress in Epitaxial Growth, Device Integration, and Applications

open access: yesAdvanced Photonics Research, EarlyView.
This review presents recent advances in GaN‐on‐glass technology, with a focus on epitaxial growth strategies, preorienting layers, and device integration. Innovations in material processing have been shown to enhance structural quality, orientation control, and scalability, highlighting their significance in light‐emitting diodes, photodetectors, and ...
Jungwook Min, Kwangwook Park
wiley   +1 more source

Modeling the Color Characteristics of Sapphires through the Statistical Method and Function Simulation Method

open access: yesApplied Sciences
The aim of this study was to explore the feasibility of quantitatively evaluating a sapphire’s color by analyzing gemstone images. The color characteristics of gemstones through photography and color extraction were accurately captured, and the key color
Fukang Liu   +3 more
doaj   +1 more source

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