Results 41 to 50 of about 19,868 (287)

Conversor eletrônico para dispositivos de iluminação a OLED [PDF]

, 2012
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico. Programa de Pós-Graduação em Engenharia ElétricaEste trabalho apresenta o estudo e a implementação de um conversor eletrônico para a realização do acionamento de um ...
Tureck, Felipe
core  

Blue Upconversion Organic Light‐Emitting Diodes Achieving 1000 cd m−2 With an Operating Voltage of 2.7 V by Suppressing Interfacial Exciton Quenching

Advanced Functional Materials, EarlyView.
A triplet‐blocking layer controls triplet exciton dynamics in blue upconversion OLEDs. The layer keeps charge transfer (CT)‐generated triplet excitons inside the triplet‐triplet annihilation (TTA) host, suppresses anode‐side interfacial quenching, and increases the steady‐state triplet population.
Qing‐Jun Shui, Hiroto Iwasaki, Kosuke Anraku, Ken Albrecht, Yutaka Majima, Seiichiro Izawa   +5 more
wiley   +1 more source

Sacrificial‐Layer‐Assisted Heat‐Affected‐Zone Suppression in Laser Patterning of PET for High‐Performance Flexible Devices

Advanced Functional Materials, EarlyView.
A removable sacrificial polymer layer engineers the thermal boundary condition during nanosecond laser ablation of PET, suppressing heat‐affected‐zone formation without relying on costly ultrafast lasers. This strategy enables deep, high‐aspect‐ratio trenches with no detectable heat‐affected zone, templating silver‐filled mesh electrodes with record ...
Mehdi Zarei, Mirza Sahaluddin, Mostafa Bedewy, Paul W. Leu   +3 more
wiley   +1 more source

Highly efficient, reliable, and ultraflexible bio-organic light-emitting diode patch

npj Flexible Electronics
Driven by innovations in the form factor of organic light-emitting diode (OLED) displays, the application scope of OLED technology now encompasses the biomedical field, in addition to its existing application domains of mobile phones, televisions, and ...
Jeong Hyun Kwon, Yongmin Jeon, Tae-Yun Lee, Young Hyun Son, Hyeongjun Lee, Dong-Hyun Baek, Sun-Woo Lee, Taek-Soo Kim   +7 more
doaj   +1 more source

Out‐of‐Plane Strain‐Decoupled Architecture for High‐Fill‐Factor Stretchable OLED Displays

Advanced Functional Materials, EarlyView.
A vertically decoupled multilayer SOLED architecture separates emissive pixel islands from deformable interconnects, allowing low‐modulus elastomeric layers to accommodate applied strain and suppress strain transfer to the OLED region. This design, combined with transparent hybrid encapsulation, enables a high fill factor (∼75%), stretchability ...
Young Hyun Son, Kyung Cheol Choi, Jeong Hyun Kwon   +2 more
wiley   +1 more source

Role of the Recombination Zone in Organic Light‐Emitting Devices

Advanced Materials, EarlyView.
This review summarizes the critical role of the recombination zone in organic light‐emitting diodes (OLEDs). We highlight that broadening the recombination zone in OLEDs based on emissive layers with balanced charge transport and high photoluminescence quantum yields provides a promising route toward achieving both long operational lifetime and high ...
Yungui Li, Karl Leo
wiley   +1 more source

Synthesis of a Novel 2-Methyl-8-Quinolinol Complex of Zn (II) and Its Use in Organic Light Emitting Diodes (OLEDs) Fabrication [PDF]

Iranian Journal of Chemistry & Chemical Engineering
A zinc complex, (Me-HQ-H) [ZnI₂(Me-HQ)], was synthesized via a straightforward reaction between ZnI₂ and 2-methyl-8-quinolinol (Me-HQ). The complex was characterized using multiple techniques, including elemental analysis (CHN),     FT-IR, ¹H and ¹³C NMR
Farhad Imanifard, Maryam Daghighi Asli, Ezzatollah Najafi, Behrouz Notash   +3 more
doaj   +1 more source

Progress in the development of the display performance of AR, VR, QLED and OLED devices in recent years

Journal of Information Display, 2022
The remarkable progress of virtual reality, augmented reality, quantum dot light-emitting diode, and organic light-emitting diode as next-generation displays has overcome the leadership of the liquid crystal display during the last two years.
Ho Jin Jang, Jun Yeob Lee, Geun Woo Baek, Jeonghun Kwak, Jae-Hyeung Park   +4 more
doaj   +1 more source

Transparent Perovskite Light‐Emitting Diodes with Conductive Oxide Top Electrodes

Advanced 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, Sergio Martínez‐Saiz, Morena Cervino, Edoardo Stanzani, Sandra Jenatsch, Qingsen Zeng, Joo Sung Kim, Dong‐Hyeok Kim, Eojin Yoon, Tae‐Woo Lee, Daniel Tordera, Henk J. Bolink   +11 more
wiley   +1 more source

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

Advanced 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, Justin Neu, Sung‐Joo Kwon, Runqio Song, Zixuan Chen, Tajah Trapier, Paschalis Gkoupidenis, David Ginger, Wei You, Jasper J. Michels, Harald Ade   +10 more
wiley   +1 more source