Results 71 to 80 of about 3,865,697 (340)
Ultraviolet Electrostatic Field Effect Light-Emitting Diode
IEEE Photonics Journal, 2020 The potential of ultraviolet (UV) AlGaN quantum well (QW) light-emitting diodes (LEDs) is stunted due to the lack of efficient p-type doping for this ultra wide bandgap material.
Matthew Hartensveld +2 more
doaj +1 more source
A Review of Light-Emitting Diodes and Ultraviolet Light-Emitting Diodes and Their Applications
PhotonicsThis paper presents an extensive literature review on Light-Emitting Diode (LED) fundamentals and discusses the historical development of LEDs, focusing on the material selection, design employed, and modifications used in increasing the light output. It
Trailokya Bhattarai +2 more
semanticscholar +1 more source
Pressure‐Assisted Dimensional Transformation of 2D Hydrogenated Borophene into 0D Boron Quantum Dots
Advanced Functional Materials, EarlyView.Hydrogenated borophene (HB) is transformed into distinct boron nanostructures through a solvent‐free thermal process. Under flowing nitrogen, hydrogen escape promotes reconstruction into B2O3 nanoplatelets, whereas hydrogen‐induced pressure under sealed conditions facilitates fragmentation into boron quantum dots.
Ozden Gunes Yildiz +11 more
wiley +1 more source
Light-Emitting Diode Based Photoacoustic Imaging System
Frontiers in Biomedical Technologies, 2020 Purpose: A Photoacoustic Imaging (PAI) as a non-invasive hybrid imaging modality has the potential to be used in a wide range of pre-clinical and clinical applications.
Ebrahim Najafzadeh +3 more
doaj +1 more source
Nature Communications, 2023 Nanoscale circularly polarized light sources are an important building block for future integrated photonics. Here the authors demonstrate circularly polarized light emission from a thin organic single crystal light-emitting diode.
Jichao Jia +7 more
doaj +1 more source
High-efficiency perovskite–polymer bulk heterostructure light-emitting diodes [PDF]
Nature Photonics, 2018 Perovskite-based optoelectronic devices are gaining much attention owing to their remarkable performance and low processing cost, particularly for solar cells.
Baodan Zhao +19 more
semanticscholar +1 more source
High‐Efficiency Deep Blue Single‐Gaussian Europium(II) Emitters and Their Emitter‐Host Interactions
Advanced Functional Materials, EarlyView.Crown‐ether ligands and carborate anions enable vacuum‐processable Eu(II) emitters with efficient single‐Gaussian deep‐blue luminescence. Combined photophysical and computational analyses reveal that excited‐electron confinement and steric shielding of the europium center jointly govern compatibility with OLED host materials, establishing molecular ...
Mahmoud Soleimani +8 more
wiley +1 more source
Purely Organic Thermally Activated Delayed Fluorescence Materials for Organic Light‐Emitting Diodes
Advances in Materials, 2017 The design of thermally activated delayed fluorescence (TADF) materials both as emitters and as hosts is an exploding area of research. The replacement of phosphorescent metal complexes with inexpensive organic compounds in electroluminescent (EL ...
M. Y. Wong, E. Zysman‐Colman
semanticscholar +1 more source
Advanced Functional Materials, EarlyView.Top‐down ultrasonication produces highly emissive Cs2ZrCl6:Te4+ nanocrystals (NCs) with a PLQY of 65%, which is higher compared to that of the NCs synthesized by typical bottom‐up hot‐injection synthesis. The colloidal Cs2ZrCl6:Te4+ NCs have been found to be potential candidates for x‐ray scintillation imaging.
Yang Liu +12 more
wiley +1 more source
Nature Communications, 2020 Exploiting low-temperature formed black phase CsPbI3 for light-emitting applications remains a challenge. Here, the authors propose a method to enable the deposition of γ-CsPbI3 films at 100C and demonstrate a light-emitting diode with an external ...
Chang Yi +16 more
doaj +1 more source