22.3: CbzTAZ Hosts in Blue Organic Light Emitting Devices Perform a High Current Efficiency more than 50 cd/A

WOLEDs based on Au-Y and FIrpic demonstrate high current efficiency with ∼4% efficiency roll-off and white emission with CIE coordinates of (0.33, 0.40).

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Dramatic efficiency improvement in single-layer orange phosphorescent organic light-emitting devices with suppressed efficiency roll-off

RSC Advances ◽

10.1039/c6ra07741b ◽

2016 ◽

Vol 6 (60) ◽

pp. 55017-55021 ◽

Cited By ~ 5

Author(s):

Liangmei Zuo ◽

Guangguang Han ◽

Ren Sheng ◽

Kaiwen Xue ◽

Yu Duan ◽

...

Keyword(s):

Current Efficiency ◽

Single Layer ◽

Efficiency Improvement ◽

Light Emitting ◽

Light Emitting Devices ◽

Organic Light ◽

Organic Light Emitting Devices ◽

A Current

We have successfully demonstrated efficient single-layer organic light-emitting devices (OLEDs) with a current efficiency of 31.38 cd A−1.

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Improve the Efficiency of White Organic Light-Emitting Devices Using Double-Doped System

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.152-153.687 ◽

2010 ◽

Vol 152-153 ◽

pp. 687-690

Author(s):

Gui Ying Ding ◽

Wen Long Jiang ◽

Guang De Wang ◽

Qiang Han ◽

Xi Chang

Keyword(s):

Current Efficiency ◽

Light Emitting ◽

Light Emitting Devices ◽

Organic Light ◽

Maximum Current ◽

Hole Transporting ◽

White Oleds ◽

Organic Light Emitting Devices ◽

20 Nm ◽

White Oled

The doped and non-doped white Organic light-emitting devices (OLEDs) were fabricated, using strong yellow emitting and hole-transporting ability of TPAHQZn. When the white OLED is a double-doped structure, greatly enhanced the efficiency of the device. The double-doped white device were fabricated as follows: ITO/2T-NATA (17 nm)/ CBP: 30% TPAHQZn: 8% Ir(ppy)3 (25 nm)/ NPBX (15 nm)/BCP(8nm)/TPBi: 10% Ir(ppy)3 (15nm)/Alq3 (20 nm)/LiF (1.3 nm)/Al. The double-doped white OLEDs were obtained with Commission International de L’Eclairage coordinates of (0.29,0.28) at 17 V, the maximum current efficiency increaed four times that double-doped white device of 4.12cd/A(8V) than non-doped of 1.03 cd/A (10V) .

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Highly efficient bluish green organic light-emitting diodes of iridium(iii) complexes with low efficiency roll-off

Dalton Transactions ◽

10.1039/c8dt00952j ◽

2018 ◽

Vol 47 (22) ◽

pp. 7587-7593 ◽

Cited By ~ 11

Author(s):

Ning Su ◽

Zheng-Guang Wu ◽

You-Xuan Zheng

Keyword(s):

Current Efficiency ◽

External Quantum Efficiency ◽

Light Emitting Diodes ◽

Organic Light Emitting Diodes ◽

High Current ◽

High Current Efficiency ◽

Light Emitting ◽

Organic Light ◽

Bluish Green ◽

Low Efficiency

Two efficient bluish green iridium(iii) complexes were applied as emitters in the organic light-emitting diodes, which showing high current efficiency of 58.17 cd A−1 and external quantum efficiency of 25.33% with low efficiency roll-off.

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Solution-processable, high luminance deep-blue organic light emitting devices based on novel naphthalene bridged bis-triphenylamine derivatives

Journal of Materials Chemistry C ◽

10.1039/c8tc05911j ◽

2019 ◽

Vol 7 (9) ◽

pp. 2686-2698 ◽

Cited By ~ 10

Author(s):

Yuqin Li ◽

Siming Gao ◽

Nan Zhang ◽

Xin Huang ◽

Jinchang Tian ◽

...

Keyword(s):

Current Efficiency ◽

High Luminance ◽

Light Emitting ◽

Light Emitting Devices ◽

Deep Blue ◽

Organic Light ◽

Maximum Current ◽

Solution Processable ◽

Organic Light Emitting Devices ◽

Very High

The optimal device E exhibited a very high luminance of 10 407 cd m−2 and a maximum current efficiency of 7.80 cd A−1.

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High performance solution-processed green phosphorescent organic light-emitting diodes with high current efficiency and long-term stability

Journal of Materials Chemistry C ◽

10.1039/c9tc03559a ◽

2019 ◽

Vol 7 (37) ◽

pp. 11569-11580 ◽

Cited By ~ 5

Author(s):

Athithan Maheshwaran ◽

Vijaya Gopalan Sree ◽

Ho-Yeol Park ◽

Woosum Cho ◽

Hyein Kim ◽

...

Keyword(s):

Current Efficiency ◽

High Performance ◽

Organic Light Emitting Diodes ◽

High Current ◽

Solution Processed ◽

High Current Efficiency ◽

Light Emitting ◽

Long Term Stability ◽

Organic Light

Highly efficient (D–π–A)-type host and green Ir(iii) complexes are introduced for solution-processed PHOLEDs that achieve high CE with considerably high EQE. The devices with symmetrical complex show more stable than those with asymmetrical complex.

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Efficiency Enhancement of Tandem Organic Light-Emitting Devices Fabricated Utilizing an Organic BEDT-TTF and HAT-CN Charge Generation Layer

Journal of Nanoscience and Nanotechnology ◽

10.1166/jnn.2015.11261 ◽

2015 ◽

Vol 15 (10) ◽

pp. 8070-8074

Author(s):

Dae Hun Kim ◽

Tae Whan Kim

Keyword(s):

Current Efficiency ◽

Operating Voltage ◽

Efficiency Enhancement ◽

Charge Generation ◽

Electrical And Optical Properties ◽

Light Emitting ◽

Light Emitting Devices ◽

Organic Light ◽

Highest Occupied Molecular Orbital ◽

Organic Light Emitting Devices

The electrical and optical properties of tandem organic light-emitting devices (OLEDs) fabricated utilizing an organic bis(ethylenedithio)-tetrathiafulvalene (BEDT-TTF) and 1,4,5,8,9,11- hexaazatriphenylenehexacarbonitrile (HAT-CN) charge generation layer (CGL) were investigated to enhance their efficiency. While the operating voltage of the tandem OLEDs with a BEDT-TTF and HAT-CN CGL at 50 mA/cm2 was 11.2 V lower than that of the tandem OLEDs without a CGL, the current efficiency of the tandem OLEDs with a BEDT-TTF and a HAT-CN CGL at 50 mA/cm2 was 0.8 cd/A higher than that of the tandem OLEDs without a CGL. An increase in the current efficiency and a decrease in the operating voltage of the tandem OLEDs with a BEDT-TTF and an HAT-CN CGL were attributed to the enhancement of the electron injection due to its existence in the highest occupied molecular orbital level of the BEDT-TTF between the HAT-CN and the tris-(8- hydroxyquinoline)aluminum layer.

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