Articles with "emission zone" as a keyword



A Thermally Activated Delayed Fluorescence Green OLED with 4500 h Lifetime and 20% External Quantum Efficiency by Optimizing the Emission Zone using a Single‐Emission Spectrum Technique

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Published in 2022 at "Advanced Materials"

DOI: 10.1002/adma.202201409

Abstract: Device optimization of light‐emitting diodes (LEDs) targets the most efficient conversion of electrically injected charges into emitted light. The emission zone in an LED is where charges recombine and light is emitted from. It is… read more here.

Keywords: emission zone; emission; efficiency; single emission ... See more keywords

Determining the Width of the Dynamic Emission Zone in Light‐Emitting Electrochemical Cells

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Published in 2025 at "Advanced Optical Materials"

DOI: 10.1002/adom.202501128

Abstract: The light‐emitting electrochemical cell (LEC) forms a p‐n junction doping structure by bipolar electrochemical doping during its initial operation. The light emission originates from the p‐n junction region through the formation and radiative decay of… read more here.

Keywords: emitting electrochemical; width dynamic; emission; light emitting ... See more keywords

Influence of the bias-dependent emission zone on exciton quenching and OLED efficiency

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Published in 2019 at "Organic Electronics"

DOI: 10.1016/j.orgel.2019.04.027

Abstract: Abstract We present an electro-optical model of a three-layer phosphorescent OLED which accurately describes the measured current efficiency and transient electroluminescence decay for different biases. Central findings are a bias-dependent emission zone, which influences light… read more here.

Keywords: bias dependent; dependent emission; emission zone; exciton quenching ... See more keywords

Constraining γ-ray dissipation site in gravitationally lensed quasar - PKS 1830−211

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Published in 2025 at "Monthly Notices of the Royal Astronomical Society"

DOI: 10.1093/mnras/staf021

Abstract: Variable γ-ray flares upto minute timescales reflect extreme particle acceleration sites. However, for high-redshift blazars, the detection of such rapid variations remains limited by current telescope sensitivities. Gravitationally lensed blazars serve as powerful tools to… read more here.

Keywords: pks 1830; 1830 211; gravitationally lensed; emission ... See more keywords