Hetero-integration of functional semiconductor layers and devices has received strong
research interest from both academia and industry. While conventional techniques such as …

A significant enhancement of light extraction of light-emitting diodes (LEDs) with micro
patterns has been experimentally investigated. The micro patterns on the surface of a …

In this work, the amorphous Eu 3+-doped TiO 2 spheres were synthesized by low cost mixed-
solvent method, while the anatase and rutile spheres can be obtained by annealing the as …

With the expanding application of light-emitting diodes (LEDs), the color quality of white
LEDs has attracted much attention in several color-sensitive application fields, such as …

Ultraviolet (UV)-green emitting MAPbBr3 nanocrystals were synthesized at room
temperature, employing a cost-effective solution-based method. The size control of …

The finite-difference time-domain method is employed to study the light extraction efficiency
of white light emitters. The cone arrays designed on top of white light emitters eliminate the …

We demonstrate a GaN-based flip-chip LED (FC-LED) with a highly reflective indium-tin
oxide (ITO)/distributed Bragg reflector (DBR) ohmic contact. A transparent ITO current …

To enhance the light efficiency of deep ultraviolet light-emitting diodes (DUV-LEDs), a novel
method was proposed through introducing tailored nanostructures on the surfaces of silica …

Lens arrays are introduced to diminish the total internal reflection (TIR) that happens at chip-
encapsulant and encapsulant-air interfaces of chip-on-board light-emitting diodes (COB …

Microlens arrays (MLAs) based imaging devices can be used efficiently in small form factor
cameras as alternatives to traditional optical components. However, MLAs face challenges …