Origin of external quantum efficiency roll-off in 4,4′-bis[(N-carbazole)styryl]biphenyl (BSBCz)-based inverted organic light emitting diode under high pulsed electrical excitation

2019 ◽  
Vol 126 (18) ◽  
pp. 185501 ◽  
Author(s):  
F. Bencheikh ◽  
A. S. D. Sandanayaka ◽  
T. Fukunaga ◽  
T. Matsushima ◽  
C. Adachi
Keyword(s):  
Quantum Efficiency ◽  
External Quantum Efficiency ◽  
Light Emitting Diode ◽  
Electrical Excitation ◽  
Light Emitting ◽  
Organic Light Emitting Diode ◽  
Organic Light

Single-layer organic light-emitting diode with 2.0% external quantum efficiency prepared by spin-coating

2000 ◽  
Vol 320 (5-6) ◽  
pp. 387-392 ◽  
Author(s):  
Y.D. Jin ◽  
J.P. Yang ◽  
P.L. Heremans ◽  
M. Van der Auweraer ◽  
E. Rousseau ◽  
...  
Keyword(s):  
Quantum Efficiency ◽  
Spin Coating ◽  
External Quantum Efficiency ◽  
Light Emitting Diode ◽  
Single Layer ◽  
Light Emitting ◽  
Organic Light Emitting Diode ◽  
Organic Light

Highly simplified phosphorescent organic light emitting diode with >20% external quantum efficiency at >10,000 cd/m2

2011 ◽  
Vol 98 (7) ◽  
pp. 073310 ◽  
Author(s):  
Z. B. Wang ◽  
M. G. Helander ◽  
J. Qiu ◽  
D. P. Puzzo ◽  
M. T. Greiner ◽  
...  
Keyword(s):  
Quantum Efficiency ◽  
External Quantum Efficiency ◽  
Light Emitting Diode ◽  
Light Emitting ◽  
Organic Light Emitting Diode ◽  
Organic Light

A Fluorescent Organic Light-Emitting Diode with 30% External Quantum Efficiency

2014 ◽  
Vol 26 (32) ◽  
pp. 5684-5688 ◽  
Author(s):  
Jin Won Sun ◽  
Jeong-Hwan Lee ◽  
Chang-Ki Moon ◽  
Kwon-Hyeon Kim ◽  
Hyun Shin ◽  
...  
Keyword(s):  
Quantum Efficiency ◽  
External Quantum Efficiency ◽  
Light Emitting Diode ◽  
Light Emitting ◽  
Organic Light Emitting Diode ◽  
Organic Light

scholarly journals Light-Emitting Diodes: A Fluorescent Organic Light-Emitting Diode with 30% External Quantum Efficiency (Adv. Mater. 32/2014)

2014 ◽  
Vol 26 (32) ◽  
pp. 5577-5577 ◽  
Author(s):  
Jin Won Sun ◽  
Jeong-Hwan Lee ◽  
Chang-Ki Moon ◽  
Kwon-Hyeon Kim ◽  
Hyun Shin ◽  
...  
Keyword(s):  
Quantum Efficiency ◽  
External Quantum Efficiency ◽  
Light Emitting Diodes ◽  
Light Emitting Diode ◽  
Light Emitting ◽  
Organic Light Emitting Diode ◽  
Organic Light

A hybrid white organic light-emitting diode with above 20% external quantum efficiency and extremely low efficiency roll-off

2014 ◽  
Vol 2 (36) ◽  
pp. 7494-7504 ◽  
Author(s):  
Ning Sun ◽  
Qi Wang ◽  
Yongbiao Zhao ◽  
Dezhi Yang ◽  
Fangchao Zhao ◽  
...  
Keyword(s):  
Quantum Efficiency ◽  
External Quantum Efficiency ◽  
Light Emitting Diode ◽  
Structure Design ◽  
Device Structure ◽  
Light Emitting ◽  
Organic Light Emitting Diode ◽  
Organic Light ◽  
Low Efficiency

Based on a delicate device structure design, a novel (phosphorescence/fluorescence) hybrid WOLED with nearly 100% exciton harvesting has been demonstrated.

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

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Shin Woo Kang ◽  
Dong-Hyun Baek ◽  
Byeong-Kwon Ju ◽  
Young Wook Park
Keyword(s):  
Quantum Efficiency ◽  
External Quantum Efficiency ◽  
High Efficiency ◽  
Light Emitting Diode ◽  
Organic Light Emitting Diodes ◽  
Emission Layer ◽  
Systematic Analysis ◽  
Light Emitting ◽  
Organic Light Emitting Diode ◽  
Organic Light

AbstractIn this study, we report highly efficient green phosphorescent organic light-emitting diodes (OLEDs) with ultra-thin emission layers (EMLs). We use tris[2-phenylpyridinato-C2,N]iridium(III) (Ir(ppy)3), a green phosphorescent dopant, for creating the OLEDs. Under systematic analysis, the peak external quantum efficiency (EQE) of an optimized device based on the ultra-thin EML structure is found to be approximately 24%. This result is highest EQE among ultra-thin EML OLEDs and comparable to the highest efficiency achieved by OLEDs using Ir(ppy)3 that are fabricated via conventional doping methods. Moreover, this result shows that OLEDs with ultra-thin EML structures can achieve ultra-high efficiency.

Enabling a 6.5% External Quantum Efficiency Deep-Blue Organic Light-Emitting Diode with a Solution-Processable Carbazole-Based Emitter

2018 ◽  
Vol 122 (42) ◽  
pp. 24295-24303 ◽  
Author(s):  
Jwo-Huei Jou ◽  
Jheng-Lin Li ◽  
Snehasis Sahoo ◽  
Deepak Kumar Dubey ◽  
Rohit Ashok Kumar Yadav ◽  
...  
Keyword(s):  
Quantum Efficiency ◽  
External Quantum Efficiency ◽  
Light Emitting Diode ◽  
Light Emitting ◽  
Organic Light Emitting Diode ◽  
Deep Blue ◽  
Organic Light ◽  
Solution Processable
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