Results 21 to 30 of about 9,073 (189)

Electroluminescence property of organic light emitting diode (OLED)

open access: yesAIP Conference Proceedings, 2013
Transport properties of electrons and holes were investigated not only in a anthracene-containing poly(p-phenylene-ethynylene)- alt - poly(p-phenylene-vinylene) (PPE-PPV) polymer (AnE-PVstat) light emitting diodes (OLED) but also in an ITO/Ag/polymer/Ag electron and ITO/PEDOT:PSS/polymer/Au hole only devices.
Ozdemir, Orhan   +8 more
openaire   +5 more sources

OLED (Organic Light Emitting Diode) Technology

open access: yes, 2023
Organic light-emitting diodes (OLEDs) have been regarded as one of the most promising technologies for future displays since Kodak's breakthrough in 1987. A variety of materials have been created and enhanced to meet the needs of this application.
B. Madhumitha, T. Priyanka
openaire   +2 more sources

Lensfree OLEDs with over 50% external quantum efficiency via external scattering and horizontally oriented emitters

open access: yesNature Communications, 2018
Light extraction approaches based on a macroscopic lens in organic light-emitting diodes (OLEDs) enables competitive performance, but compromise on the technology’s key benefits.
Jinouk Song   +6 more
doaj   +1 more source

Tailor-made nanostructures bridging chaos and order for highly efficient white organic light-emitting diodes

open access: yesNature Communications, 2019
For organic light-emitting diodes (OLEDs) to reach their potential for lighting applications, improved light out-coupling using industry-compatible methods are required.
Yungui Li   +11 more
doaj   +1 more source

Emergence and control of photonic band structure in stacked OLED microcavities

open access: yesNature Communications, 2021
Understanding and manipulating the photonic band structure formed in stacked Fabry-Pérot microcavity organic light-emitting diodes (OLEDs) is key to optimizing their performance. Here, through intelligent device design, the authors tune the photonic band
David Allemeier   +5 more
doaj   +1 more source

Realization of high-efficiency fluorescent organic light-emitting diodes with low driving voltage

open access: yesNature Communications, 2019
Though organic light-emitting diodes (OLEDs) with electroluminescence at sub-bandgap voltages have been reported, realizing high efficiency in such a device is difficult.
Amin Salehi   +7 more
doaj   +1 more source

An external quantum efficiency of >20% from solution-processed poly(dendrimer) organic light-emitting diodes

open access: yesnpj Flexible Electronics, 2018
Efficient OLEDs from solution: engineering dipole alignment in polymers Dipole alignment is achieved in efficient solution-processed organic light-emitting diodes featuring a novel poly(dendrimer).
Fatemeh Maasoumi   +10 more
doaj   +1 more source

Segment-specific optogenetic stimulation in Drosophila melanogaster with linear arrays of organic light-emitting diodes

open access: yesNature Communications, 2020
Organic light-emitting diodes (OLEDs) can offer an attractive approach for providing light stimulation in high-throughput optogenetics. Here, the authors report a microstructured OLED array that provides local photo-stimulation in Drosophil a ...
Caroline Murawski   +2 more
doaj   +1 more source

Unravelling the electron injection/transport mechanism in organic light-emitting diodes

open access: yesNature Communications, 2021
Understanding the role electron injection and transport in organic light-emitting diodes (OLED) is critical for optimizing device performance. Here, the authors elucidate the electron injection/transport mechanism in OLEDs and identify the cathode ...
Tsubasa Sasaki   +8 more
doaj   +1 more source

Operando ESR observation in thermally activated delayed fluorescent organic light-emitting diodes

open access: yesScientific Reports, 2023
Organic light-emitting diodes (OLEDs) using thermally activated delayed fluorescence (TADF) materials have advantages over OLEDs using conventional fluorescent materials or high-cost phosphorescent materials, including higher efficiency and lower cost ...
Shintaro Yumoto   +6 more
doaj   +1 more source

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