Results 101 to 110 of about 3,807,058 (336)

Colour tuneable LEDs and pixelated micro-LED arrays

open access: yes, 2018
Light-emitting diodes (LEDs) are inherently monochromatic light sources. However, owing to their miniature footprints, color mixing using these devices is much more feasible compared to conventional light sources, which are many times larger in ...
Hoi Wai Choi   +5 more
core   +1 more source

Transparent Perovskite Light‐Emitting Diodes with Conductive Oxide Top Electrodes

open access: yesAdvanced Materials, EarlyView.
Transparent perovskite light‐emitting diodes (TrPeLEDs) enable simultaneous display and transparency, expanding application possibilities. Using a metal oxide buffer layer and pulsed laser deposition, TrPeLEDs with diverse compositions and architectures are demonstrated.
Michele Forzatti   +11 more
wiley   +1 more source

Auto-Split Laser Lift-Off Technique for Vertical-Injection GaN-Based Green Light-Emitting Diodes

open access: yesIEEE Photonics Journal, 2013
An auto-split laser lift-off (LLO) method for fabrication of vertical-injection GaN-based green light-emitting diodes (ASV-LEDs) is demonstrated. The ASV-LEDs exhibited a significant improvement in the light output and thermal dissipation, as compared ...
M. Chen   +5 more
doaj   +1 more source

Correlated Charge Transport in an Organic Coulomb Glass

open access: yesAdvanced Materials, EarlyView.
ABSTRACT Advances in the development of organic field‐effect transistors (OFETs), electrically gated organic semiconductors (EGOFETs), and organic electrochemical transistors (OECTs) allow for the operation of these devices at very high charge‐carrier densities, where Coulomb interactions between carriers can be expected to become significant.
Magdalena Sophie Dörfler   +3 more
wiley   +1 more source

White light emitting diod: situation and progress trend

open access: yesТехнологія та конструювання в електронній апаратурі, 2006
The main global trends in the development of high-brightness light-emitting diodes are considered. According to these trends, by 2012 the luminous efficacy of light sources based on white LEDs will exceed that of incandescent lamps by a factor of 100 ...
N. Ja. Struhljak   +3 more
doaj  

Estudo de estruturas de reatores eletrônicos para LEDs de iluminação [PDF]

open access: yes, 2012
Tese (doutorado) - Universidade Federal de Santa Catarina, Centro Tecnológico, Programa de Pós-Graduação em Engenharia Elétrica, Florianópolis, 2010.Este trabalho tem como objetivo específico estudar estruturas de reatores eletrônicos para LEDs de ...
Sá Junior, Edilson Mineiro
core  

Influence of the organic hole transport layer on the dynamics of quantum dot-based light-emitting diodes

open access: yes, 2022
Paper 117061R, 6 S.Colloidal quantum dots (QDs) have attracted considerable interest because of their unique properties, like high quantum efficiencies, size dependent emission wavelength, high color purity and a low-cost solution processability.
Weiß, Alexander   +4 more
core   +1 more source

Thermodynamic Limits to Molecular Doping in Conjugated Polymers: A Perspective on Phase Behavior and Miscibility

open access: yesAdvanced Materials, EarlyView.
Molecular doping of conjugated polymers is fundamentally constrained by thermodynamic phase behavior. This Perspective reframes doping efficiency and stability in terms of miscibility limits, binodals, and solvus boundaries, highlighting the role of effective interaction parameters and charge transfer.
Somayeh Kashani   +10 more
wiley   +1 more source

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