Determination of layer morphology of rough layers in organic light emitting diodes by X-ray reflectivity

Article Materials Science, Multidisciplinary

Ultrasonic Spray Coating of Silver Nanowire-Based Electrodes for Organic Light-Emitting Diodes

Inge Verboven et al.

Summary: The study demonstrates that ultrasonically spray coating is an excellent printing technique for applying silver nanowires and conductive polymers, forming electrodes with high transparency and conductivity, which have been successfully applied in organic light-emitting diodes.

ADVANCED ENGINEERING MATERIALS (2022)

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Review Chemistry, Multidisciplinary

A Brief History of OLEDs-Emitter Development and Industry Milestones

Gloria Hong et al.

Summary: Organic light-emitting diodes (OLEDs) have undergone significant development over the past 30 years, with advancements in emitter materials leading to three generations of OLED devices. Research is now focused on the fourth generation of OLEDs, with academia and industry achieving milestones in the development of green, orange-red, and blue OLED emitters.

ADVANCED MATERIALS (2021)

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Article Materials Science, Multidisciplinary

Inkjet-Printed Lenses with Adjustable Contact Angle to Improve the Light Out-Coupling of Organic Light-Emitting Diodes

Ian Sachs et al.

Summary: Research on enhancing the out-coupling efficiency of organic light-emitting diodes (OLEDs) is ongoing, with the use of macrolenses to prevent total internal reflection at the glass-air interface. The design of the lenses considers the dimensions of the OLED and the contact angle, and a process based on inkjet etching and printing allows for the printing of lenses with defined radius and contact angle, resulting in improved luminance measurements.

ADVANCED ENGINEERING MATERIALS (2021)

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Article Multidisciplinary Sciences

Green phosphorescent organic light-emitting diode exhibiting highest external quantum efficiency with ultra-thin undoped emission layer

Shin Woo Kang et al.

Summary: This study reports highly efficient green phosphorescent OLEDs with ultra-thin EMLs, achieving a peak EQE of approximately 24% using Ir(ppy)(3) as the dopant. The result demonstrates that OLEDs with ultra-thin EML structures can achieve ultra-high efficiency.

SCIENTIFIC REPORTS (2021)

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Article Chemistry, Multidisciplinary

Ultrathin non-doped thermally activated delayed fluorescence emitting layer for highly efficient OLEDs

Gyana Prakash Nanda et al.

Summary: In this study, highly efficient ultrathin non-doped green and bluish-green OLEDs were achieved using a TADF emitter. The green OLED with an ultrathin EML showed a 2.6-fold higher EQE(max) of 13.5% compared to the conventional device with a luminance of 17,250 cd m(-2).

CHEMICAL COMMUNICATIONS (2021)

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Article Optics

Influence of surface and interface roughness on X-ray and extreme ultraviolet reflectance: A comparative numerical study

Yuka Esashi et al.

Summary: The influence of surface and interface roughness on X-ray and EUV reflectometry is becoming increasingly important as layer thicknesses decrease to a few nanometers. Simulations of two different approaches for modeling roughness show a significant discrepancy in certain situations, caution is required when using either approach to model roughness in these scenarios.

OSA CONTINUUM (2021)

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Article Materials Science, Multidisciplinary