Light Guide Layer Thickness Optimization for Enhancement of the Light Extraction Efficiency of Ultraviolet Light–Emitting Diodes [PDF]
Nanoscale Research Letters, 2021 Consider material machinability and lattice mismatch sapphire as substrates for the ultraviolet-C light-emitting diodes (UV-C LEDs) are commonly used, but their high refractive index can result in the total internal reflection (TIR) of light whereby some
Zhi Ting Ye +4 more
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Double-Grating Displacement Structure for Improving the Light Extraction Efficiency of LEDs [PDF]
The Scientific World Journal, 2012 To improve the light extraction efficiency of light-emitting diodes (LEDs), grating patterns were etched on GaN and silver film surfaces. The grating-patterned surface etching enabled the establishment of an LED model with a double-grating displacement ...
Zhibin Wang +5 more
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Light extraction efficiency enhancement of flip-chip blue light-emitting diodes by anodic aluminum oxide [PDF]
Beilstein Journal of Nanotechnology, 2018 We produced an anodic aluminum oxide (AAO) structure with periodic nanopores on the surface of flip-chip blue light-emitting diodes (FC-BLEDs).
Yi-Ru Huang +8 more
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Higher Light Extraction Efficiency in Organic Light-Emitting Devices by Employing 2D Periodic Corrugation [PDF]
Frontiers in Chemistry, 2022 Photons trapped in the form of waveguide (WG) modes associated with the organic–organic interface and in the form of surface plasmon polariton (SPP) modes associated with the metallic electrode–organic interface result in a large energy loss in organic ...
Yu Bai +3 more
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Lattice Constant Effect on Diffracted Transmission of ITO Periodic Nanostructures and Improvement of the Light Extraction Efficiency of Light-Emitting Diodes [PDF]
Micromachines, 2021 We studied the effects of the lattice pitch of indium-doped tin oxide (ITO) periodic nanostructures on the diffracted transmission to improve the light extraction efficiency of light-emitting diodes (LEDs). Periodic hexagonal ITO nanopillars with lattice
Zhanxu Chen +3 more
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Increasing the Light Extraction Efficiency of Organic Light-Emitting Devices by Electrochemically Corroded Patterned Substrates [PDF]
Micromachines, 2023 A substrate with microstructure can increase the light extraction efficiency of OLEDs. However, the present preparation methods for micro- and nanostructures are not suited for broad-area manufacturing.
Yang Wang +3 more
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Tripling the light extraction efficiency of a deep ultraviolet LED using a nanostructured p-contact [PDF]
Scientific Reports, 2022 Despite a wide array of applications, deep ultra-violet light emitting diodes offer relatively poor efficiencies compared to their optical counterparts.
Eduardo López-Fraguas +7 more
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Single-step-fabricated disordered metasurfaces for enhanced light extraction from LEDs [PDF]
Light: Science & Applications, 2021 While total internal reflection (TIR) lays the foundation for many important applications, foremost fibre optics that revolutionised information technologies, it is undesirable in some other applications such as light-emitting diodes (LEDs), which are a ...
Peng Mao +8 more
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Enhancement of Light Extraction Efficiency Using Wavy-Patterned PDMS Substrates [PDF]
NanomaterialsThis study introduces an organic light-emitting diode (OLED) light extraction method using a wavy-patterned polydimethylsiloxane (PDMS) substrate created via oxygen (O2) plasma treatment. A rapid fabrication process adjusted the flow, pressure, duration,
Jian Cheng Bi +7 more
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Enhancement of Light Extraction Efficiency of UVC-LED by SiO2 Antireflective Film
Crystals, 2022 In order to achieve high quantum efficiency of AlGaN-based deep ultraviolet light-emitting diodes (UVC-LED), it is important to improve the light extraction efficiency (LEE).
Yu Wang +4 more
doaj +2 more sources