Metamaterials have attracted broad attention owing to their unique versatile micro-and nano-
structures. As a kind of typical metamaterial, photonic crystals (PhCs) are capable of …

Photonic crystals (PCs) can greatly enhance the optoelectronic performance of light‐emitting
diodes (LEDs) due to their distinctive color, photonic band gap, etc. Therefore, many …

Nonpolar m-plane AlGaN offers the advantage of polarization-free multiple quantum wells
(MQWs) for ultraviolet (UV) emission and can be achieved on the sidewalls of selective area …

Gallium nitride (GaN) nanowires by selective area epitaxy (SAE) are an emerging platform
for nanophotonic devices. Nonetheless, the use of a high substrate temperature in SAE …

Cu 2+ content in diesel engine lubricating oil refers to a vital parameter suggesting the
quality of oil and judging mechanical wear. Accordingly, the on-site rapid copper ions …

Owing to great luminescent monochromaticity, high stability, and independent of automatic
color filter, low dimensional ultraviolet light-emitting diodes (LEDs) via the hyperpure narrow …

In this work, we report the growth, fabrication, and characterization of aluminum gallium
nitride (AlGaN) nanowire deep ultraviolet light-emitting diodes with a polarization …

The low light extraction efficiency (LEE) stemming from the transverse-magnetic dominant
emission is one of the major factors limiting the performance of aluminum gallium nitride …

We investigated the use of photonic crystals with different opto-geometrical parameters for
light extraction from AlGaInP/InGaP MQW color converters. Blue-to-red and green-to-red …

We demonstrate directional light emission in nano-LEDs using inverse design. Standard
light-extraction strategies in LEDs have been limited to surface roughening or suppressing …