Articles with "light extraction" as a keyword



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Efficient Light Extraction of Organic Light-Emitting Diodes on a Fully Solution-Processed Flexible Substrate

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Published in 2017 at "Advanced Optical Materials"

DOI: 10.1002/adom.201700307

Abstract: A flexible, nanocomposite substrate for maximizing light outcoupling efficiencies of organic light-emitting diodes (OLEDs) is introduced. In depth investigation is performed on designing the integrated strategy based on considerations of surface conductivity, microcavity tuning, and… read more here.

Keywords: light extraction; light; emitting diodes; organic light ... See more keywords
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Spontaneously Embedded Scattering Structures in a Flexible Substrate for Light Extraction.

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Published in 2017 at "Small"

DOI: 10.1002/smll.201604168

Abstract: A flexible hazy substrate (FHS) with embedded air bubbles to increase light extraction efficiency of organic light-emitting diodes (OLEDs) is reported. In order to embed the air bubbles in the flexible substrate, micropatterned substrates are… read more here.

Keywords: extraction; fhs; light extraction; flexible substrate ... See more keywords
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Randomly Disassembled Nanostructure for Wide Angle Light Extraction of Top-Emitting Quantum Dot Light-Emitting Diodes.

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Published in 2023 at "Small"

DOI: 10.1002/smll.202206133

Abstract: The quantum dot light-emitting diode (QLED) represents one of the strongest display technologies and has unique advantages like a shallow emission spectrum and superior performance based on the cumulative studies of state-of-the-art quantum dot (QD)… read more here.

Keywords: extraction; light extraction; quantum dot; dot light ... See more keywords
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Design of patterned sapphire substrates in flip-chip LEDs for improvement of light-extraction efficiencies

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Published in 2018 at "Optical and Quantum Electronics"

DOI: 10.1007/s11082-018-1414-3

Abstract: Patterned sapphire substrates (PSSs) in flip chip light-emitting diodes (FC-LEDs) were designed to improve the light extraction efficiencies (LEEs). Two typical types were considered in the cross-section of the PSS pattern; an extruded type and… read more here.

Keywords: patterned sapphire; flip chip; light extraction; extraction efficiencies ... See more keywords
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Light extraction efficiency improvement through double sided periodic photonic structures for deep UV light emitting diodes

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Published in 2021 at "Optical and Quantum Electronics"

DOI: 10.1007/s11082-021-02840-z

Abstract: Polarization-dependent light extraction efficiency (LEE) of AlGaN based flip-chip deep ultraviolet light emitting diode (peak emission at 280 nm) with embedded periodic photonic structure (PPS), surface PPS and double-sided PPS configuration have been studied by utilizing… read more here.

Keywords: light extraction; double sided; light emitting; extraction efficiency ... See more keywords
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Enhancement of light extraction in Y3Al5O12:Tb3+ thin films through nanopatterning

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Published in 2020 at "Chemical Engineering Science"

DOI: 10.1016/j.ces.2019.115416

Abstract: Abstract Light extraction is a key parameter to improve the performances of optical devices. Nanopatterned Y3Al5O12:Tb3+ luminescent coatings usable in such devices have been elaborated and have shown enhanced emission efficiency compared to their unpatterned… read more here.

Keywords: extraction; extraction y3al5o12; enhancement light; light extraction ... See more keywords
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Enhancement of light extraction efficiency with different molar amount of europium in TiO 2 :Eu 3+ for WLEDs

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Published in 2017 at "Optik"

DOI: 10.1016/j.ijleo.2017.02.031

Abstract: Abstract To evaluate of light extraction efficiency and structural properties, Eu3+ doped TiO2 sphere were prepared by means of solvothermal reaction method. The influence of Eu3+ concentration on the size and surface morphology of TiO2… read more here.

Keywords: extraction efficiency; eu3 doped; light extraction;
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Enhanced light extraction of GaN-based vertical LEDs with patterned trenches and nanostructures

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Published in 2017 at "Materials Science in Semiconductor Processing"

DOI: 10.1016/j.mssp.2016.09.036

Abstract: Abstract An efficient surface texturing technique that uses patterned trench etching and the selective formation of GaN nanostructures on the trench bottoms to improve the light extraction of vertical GaN-based light-emitting diodes (VLEDs) is proposed… read more here.

Keywords: enhanced light; extraction gan; gan based; light extraction ... See more keywords
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Simulation for light extraction efficiency of OLEDs with spheroidal microlenses in hexagonal array

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Published in 2018 at "Optics Communications"

DOI: 10.1016/j.optcom.2018.01.044

Abstract: Abstract A theoretical model based on ray optics is used to simulate the optical performance of organic light-emitting diodes (OLEDs) with spheroidal microlens arrays (MLAs) in a hexagonal array configuration using the Monte Carlo method.… read more here.

Keywords: hexagonal array; lee enhancement; oleds spheroidal; extraction efficiency ... See more keywords
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Enhanced light extraction efficiency of chip-on board light-emitting diodes through micro-lens array fabricated by ion wind

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Published in 2017 at "Optics and Laser Technology"

DOI: 10.1016/j.optlastec.2016.09.045

Abstract: Abstract Low light extraction efficiency (LEE) is a key challenge of chip-on board (COB) packaging light-emitting diodes (LEDs). In this paper, a facile preparation of micro-lens array was proposed based on the ion wind patterning.… read more here.

Keywords: light extraction; extraction efficiency; micro lens; ion wind ... See more keywords
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Highly efficient flexible OLEDs based on double-sided nano-dimpled substrate (PVB) with embedded AgNWs and TiO2 nanoparticle for internal and external light extraction

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Published in 2019 at "Optical Materials"

DOI: 10.1016/j.optmat.2019.04.007

Abstract: Abstract A light extraction structure and a flexible electrode have been developed to enhance the electroluminescence (EL) efficiency of flexible organic light-emitting diodes (FOLEDs). However, these structures are still influenced by optical losses, poor electrical… read more here.

Keywords: light extraction; external light; tio2 nanoparticle; pvb ... See more keywords