High-efficiency non-blocking phosphorescent organic light emitting diode with ultrathin emission layer

2012 ◽  
Author(s):  
Jacky Qiu ◽  
Michael G. Helander ◽  
Zhibin Wang ◽  
Yi-Lu Chang ◽  
ZhengHong Lu
Keyword(s):  
High Efficiency ◽  
Light Emitting Diode ◽  
Emission Layer ◽  
Light Emitting ◽  
Organic Light Emitting Diode ◽  
Organic Light

High efficiency and simplified white organic light-emitting diode based on a single-host emission layer

2016 ◽  
Vol 220 ◽  
pp. 329-333 ◽  
Author(s):  
Runda Guo ◽  
Shiming Zhang ◽  
Shouzhen Yue ◽  
Pingrui Yan ◽  
Yukun Wu ◽  
...  
Keyword(s):  
High Efficiency ◽  
Light Emitting Diode ◽  
Emission Layer ◽  
Light Emitting ◽  
Organic Light Emitting Diode ◽  
Organic Light ◽  
Single Host

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.

A high-efficiency hybrid white organic light-emitting diode enabled by a new blue fluorophor

2015 ◽  
Vol 3 (17) ◽  
pp. 4283-4289 ◽  
Author(s):  
Zhan Chen ◽  
Xiao-Ke Liu ◽  
Cai-Jun Zheng ◽  
Jun Ye ◽  
Xin-Yang Li ◽  
...  
Keyword(s):  
High Efficiency ◽  
Light Emitting Diode ◽  
Light Emitting ◽  
Organic Light Emitting Diode ◽  
Organic Light

High-efficiency hybrid white organic light-emitting diode enabled by a new blue fluorophor.

High efficiency Green Organic Light-emitting Diode Without Roll-off Under High Current Density

2015 ◽  
Vol 36 (11) ◽  
pp. 1307-1310
Author(s):  
田苗苗 TIAN Miao-miao ◽  
贺小光 HE Xiao-guang ◽  
祁金刚 QI Jin-gang ◽  
王 宁 Wang Ning
Keyword(s):  
Current Density ◽  
High Efficiency ◽  
High Current Density ◽  
Light Emitting Diode ◽  
High Current ◽  
Light Emitting ◽  
Organic Light Emitting Diode ◽  
Organic Light

Efficient deep-blue non-doped organic light-emitting diode with improved roll-off of efficiency based on hybrid local and charge-transfer excited state

RSC Advances ◽  
2016 ◽  
Vol 6 (74) ◽  
pp. 70085-70090 ◽  
Author(s):  
Haichao Liu ◽  
Qing Bai ◽  
Weijun Li ◽  
Yachen Guo ◽  
Liang Yao ◽  
...  
Keyword(s):  
Excited State ◽  
High Efficiency ◽  
Light Emitting Diode ◽  
Blue Emission ◽  
Light Emitting ◽  
Organic Light Emitting Diode ◽  
Deep Blue ◽  
Organic Light ◽  
Slow Roll ◽  
Donor Acceptor

Acceptor–donor–acceptor triphenylamine–phenanthroimidazole derivate (TPA–2PPI) servers as an emitter, whose device exhibits deep-blue emission, high efficiency and slow roll-off of efficiency.

High efficiency above 20% in polymeric thermally activated delayed fluorescent organic light-emitting diodes by a host embedded backbone structure

2019 ◽  
Vol 10 (35) ◽  
pp. 4872-4878 ◽  
Author(s):  
Yun Hwan Park ◽  
Ho Jin Jang ◽  
Jun Yeob Lee
Keyword(s):  
High Efficiency ◽  
Light Emitting Diodes ◽  
Light Emitting Diode ◽  
Organic Light Emitting Diodes ◽  
Light Emitting ◽  
Organic Light Emitting Diode ◽  
Thermally Activated ◽  
Highly Efficient ◽  
Organic Light ◽  
Backbone Structure

A highly efficient polymeric thermally activated delayed fluorescent (TADF) organic light-emitting diode was developed by synthesizing a copolymer with 9-vinylcarbazole (VCz) and TADF repeating units.

Investigation of charge-transporting layers for high-efficiency organic light-emitting diode

2018 ◽  
Vol 51 (45) ◽  
pp. 454002 ◽  
Author(s):  
Jwo-Huei Jou ◽  
Jia-Wei Weng ◽  
Sudam Dhudaku Chavhan ◽  
Rohit Ashok Kumar Yadav ◽  
Tzu-Wei Liang
Keyword(s):  
High Efficiency ◽  
Light Emitting Diode ◽  
Light Emitting ◽  
Organic Light Emitting Diode ◽  
Organic Light
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