Results 91 to 100 of about 6,640,031 (344)

Digitally Printed Eco‐Friendly Electronic Devices

open access: yesAdvanced Functional Materials, EarlyView.
Fabrication of electronics using eco‐friendly materials through digital printing routes is a promising strategy for improving life cycle sustainability and reducing the environmental impacts of conventional manufacturing. This review highlights state‐of‐the‐art eco‐friendly materials, green ink formulations, various resource‐efficient digital printing ...
Nitheesh M. Nair   +5 more
wiley   +1 more source

Complex Evaluation of Light Sources in Case of Electric Power Cost Increase

open access: yesИзвестия высших учебных заведений и энергетических объединенний СНГ: Энергетика, 2008
The paper gives complex evaluation of efficiency of incandescent lamps, luminescent and light-emitting-diode (LED) light sources in case of electric power price increase.
Y. N. Kolesnik, A. V. Ivaneychik
doaj  

Association of light emitting diodes (LED) devices with premature aging: a cross-sectional descriptive study

open access: yesJournal of the Pakistan Medical Association
Objective: To assess the relationship between light-emitting diode device usage and premature aging. Method: The cross-sectional, descriptive study was conducted from October 2023 to May 2024 after approval from the ethics review committee of Pakistan
Sadia Rehman   +5 more
doaj   +1 more source

Blue light emitting diode internal and injection efficiency

open access: yesAIP Advances, 2012
A simple experimental method of light emitting diode (LED) injection efficiency (IE) determination was suggested. IE and internal quantum efficiency (IQE) calculation is an actual and difficult problem in LED science.
Ilya E. Titkov   +3 more
doaj   +1 more source

Thickness‐Programmable Opto‐Memristive Dynamics in 6‐In Wafer‐Scale Atomic‐Layer‐Controlled WS2 for Reservoir Computing

open access: yesAdvanced Functional Materials, EarlyView.
A 6‐in wafer‐scale atomic‐layer‐controlled tungsten disulfide (WS2) is achieved by combining plasma‐assisted synthesis with three‐gas reactive ion etching. Precise layer control enables tunable band‐gap evolution and pulse‐history‐dependent opto‐memristive dynamics.
Seongho Kim   +17 more
wiley   +1 more source

Transfer or delivery of micro light-emitting diodes for light-emitting diode displays

open access: yesAIP Advances, 2019
As the next-generation display technology, microscale light-emitting diode (μ-LED) displays have attracted significant attention recently. For applying μ-LEDs as direct emissive pixels in everyday display applications, many chips in a relatively small ...
Jaehee Cho, Jong Kyu Kim
doaj   +1 more source

Material Coupling in Hybrid Neuromorphic Devices: From Fundamentals to System‐Level Applications

open access: yesAdvanced Functional Materials, EarlyView.
Hybrid neuromorphic devices utilize heterointerfaces between emerging semiconductors, where charge transfer and trapping, ion or defect modulation, and photogating are translated into synaptic functions. This paper discusses coupling strategies that tailor interfacial electronic and ionic properties in organic semiconductors, metal oxides, two ...
Minsu So   +5 more
wiley   +1 more source

Architected Bio‐Based Iontronic Skin With Dual‐Mode Pressure and Strain Sensing

open access: yesAdvanced Functional Materials, EarlyView.
Bio‐based acrylates in combination with an ionic liquid create 3D‐printed ionogels with compositionally tuneable mechanics and ionic conductivity. Gyroid architectures amplify low‐pressure sensitivity while preserving robust strain sensing, enabling dual‐mode detection of pressure and deformation.
Maksims Jurinovs   +8 more
wiley   +1 more source

Flip Sapphire Light-Emitting Diode (LED) Chip Package [PDF]

open access: yes, 2023
This publication describes an improved flip sapphire light-emitting diode (LED) chip package. The improved LED chip package overcomes delamination, glue bleeding, insufficient glue, and other adhesion issues that are commonly found in prior LED chip ...
Jin, Suying
core   +1 more source

Light-Emitting Diode-Based Illumination System for In Vitro Photodynamic Therapy

open access: yesInternational Journal of Photoenergy, 2012
The aim of this study is to develop a light-emitting diode- (LED-) based illumination system that can be used as an alternative light source for in vitro photodynamic therapy (PDT).
Defu Chen   +6 more
doaj   +1 more source

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