Near infrared organic light emitting devices based on a new erbium(iii) β-diketonate complex: synthesis and optoelectronic investigations

This paper deals with the synthesis of a new near infra-red emitting Er(iii) β-diketonate complex of low coordinate structure, its characterisation and fabrication of organic light emitting diode using the complex as emitting layer.

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Highly soluble fluorous alkyl ether-tagged imaging materials for the photo-patterning of organic light-emitting devices

Journal of Materials Chemistry C ◽

10.1039/c6tc04111f ◽

2017 ◽

Vol 5 (4) ◽

pp. 926-930 ◽

Cited By ~ 6

Author(s):

Jongchan Son ◽

Hyun-Taek Oh ◽

O Jun Kwon ◽

Jong-Min Lim ◽

Heeyoung Jung ◽

...

Keyword(s):

Light Emitting Diode ◽

Alkyl Ether ◽

Light Emitting ◽

Light Emitting Devices ◽

Organic Light Emitting Diode ◽

Organic Light ◽

Organic Light Emitting Devices

A photolithographic patterning scheme for organic light-emitting diode (OLED) pixels was proposed, requiring highly soluble imaging materials in fluorous solvents.

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High Brightness White Organic Light Emitting Devices Employing Phosphorescent Iridium Complex as RGB Dopants

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.364-366.1072 ◽

2007 ◽

Vol 364-366 ◽

pp. 1072-1076

Author(s):

Rui Li Song ◽

Yu Duan

Keyword(s):

Power Efficiency ◽

Light Emitting Diode ◽

Iridium Complex ◽

Light Emitting ◽

Light Emitting Devices ◽

Organic Light Emitting Diode ◽

Organic Light ◽

Color Mixing ◽

Coordinate Changes ◽

Cie Chromaticity

An efficient phosphorescent white organic light-emitting diode (WOLED) was realized by using a bright blue-emitting layer, iridium (III) bis [(4, 6-di-fluoropheny)-pyridinato-N, C2’] picolinate doped 4.4’-bis (9-carbazolyl)-2, 2’-dimethyl-biphenyl, together with tris (2- Phenylpyridine) iridium and bis (1-phenyl-isoquinoline) acetylacetonate iridium (III) were codoped into 4,4’-N,N’-dicarbazole-biphenyl layer to provide blue, green, and red emission for color mixing. The device emission color was controlled by varying dopant concentrations and the thickness of blue and green-red layers as well as tuning the thickness of exciton-blocking layer. The maximum luminance and power efficiency of the WOLED were 37100cd/m2 at 17 V and 7.37lm/W at 5V, respectively. The Commission Internationale de 1’Eclairage (CIE) chromaticity coordinate changes from (0.41, 0.42) to (0.37, 0.39) when the luminance rangeed from 1000cd/m2 to 30000cd/m2.

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Tri-Metal Layered Semitransparent Electrode for Red Phosphorescent Organic Light-Emitting Diodes

Journal of Nanoscience and Nanotechnology ◽

10.1166/jnn.2015.11268 ◽

2015 ◽

Vol 15 (10) ◽

pp. 8144-8148 ◽

Cited By ~ 1

Author(s):

Jae Woo Lee ◽

Ho Won Lee ◽

Song Eun Lee ◽

Hyung Jin Yang ◽

Sung Kyu Lee ◽

...

Keyword(s):

Indium Tin Oxide ◽

Glass Substrate ◽

Light Emitting Diode ◽

Metal Layer ◽

Flexible Substrate ◽

Flexible Display ◽

Light Emitting ◽

Light Emitting Devices ◽

Organic Light Emitting Diode ◽

Organic Light

In this paper, we fabricated tri-metal layered thin film semitransparent electrodes consisting of a thin conductive metal layer, sandwiched between two nickel layers. An equal red phosphorescent organic light-emitting diode (PHOLED) structure was deposited on the anodes of indium tin oxide (ITO) and three types of tri-metal layers (Ni/Al/Ni, Ni/Cu/Ni, and Ni/Ag/Ni, thickness of 3/7/3 nm in common) on a glass substrate. The optical and electrical performances of the device using Ni/Ag/Ni were improved more than the performances of the other devices due to the micro-cavity effect in accordance with the various electrode characteristics. Moreover, we fabricated the same red PHOLED structures on a flexible substrate, as a consequence, showed competitive emission characteristics compared to the devices fabricated on a glass substrate. Therefore, this study could succeed to additional research on flexible display panel and light-emitting devices with ITO-free electrodes.

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Ytterbium β-diketonate complexes for near infra-red organic light-emitting devices

Thin Solid Films ◽

10.1016/j.tsf.2016.07.076 ◽

2016 ◽

Vol 620 ◽

pp. 34-42 ◽

Cited By ~ 17

Author(s):

Zubair Ahmed ◽

Rian E. Aderne ◽

Jiang Kai ◽

Helmut I.P. Chavarria ◽

Marco Cremona

Keyword(s):

Light Emitting ◽

Light Emitting Devices ◽

Organic Light ◽

Infra Red ◽

Organic Light Emitting Devices

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Red and near-infrared electroluminescence from organic light-emitting devices based on a soluble substituted metal-free phthalocyanine

Optical Materials ◽

10.1016/j.optmat.2008.10.023 ◽

2009 ◽

Vol 31 (6) ◽

pp. 889-894 ◽

Cited By ~ 10

Author(s):

Zhaoqi Fan ◽

Chuanhui Cheng ◽

Shukun Yu ◽

Kaiqi Ye ◽

Rensheng Sheng ◽

...

Keyword(s):

Near Infrared ◽

Light Emitting ◽

Light Emitting Devices ◽

Metal Free ◽

Organic Light ◽

Organic Light Emitting Devices

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A near-infrared organic light-emitting diode based on an Yb(iii) complex synthesized by vacuum co-deposition

Chemical Communications ◽

10.1039/c7cc01580a ◽

2017 ◽

Vol 53 (39) ◽

pp. 5457-5460 ◽

Cited By ~ 18

Author(s):

Kazuya Jinnai ◽

Ryota Kabe ◽

Chihaya Adachi

Keyword(s):

Near Infrared ◽

Light Emitting Diode ◽

Light Emitting ◽

Organic Light Emitting Diode ◽

Organic Light

Yb(DBM)3(DPEPO), an emitter, was directly synthesized on a substrate by the vacuum co-deposition of the precursor Yb(DBM)3(H2O)2 and the ligand DPEPO.

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Efficient Non-doped Near Infrared Organic Light-Emitting Devices Based on Fluorophores with Aggregation-Induced Emission Enhancement

Chemistry of Materials ◽

10.1021/cm3008733 ◽

2012 ◽

Vol 24 (11) ◽

pp. 2178-2185 ◽

Cited By ~ 163

Author(s):

Xiaobo Du ◽

Ji Qi ◽

Zhiqiang Zhang ◽

Dongge Ma ◽

Zhi Y. Wang

Keyword(s):

Near Infrared ◽

Light Emitting ◽

Aggregation Induced Emission ◽

Light Emitting Devices ◽

Organic Light ◽

Emission Enhancement ◽

Organic Light Emitting Devices

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A life estimation model applied to organic light-emitting diodes

Lighting Research and Technology ◽

10.1177/1477153518796265 ◽

2018 ◽

Vol 51 (5) ◽

pp. 764-773

Author(s):

JP Zhang ◽

Y Zong ◽

Y Meng ◽

WG Pan ◽

JS Tang

Keyword(s):

Light Emitting Diodes ◽

Light Emitting Diode ◽

Organic Light Emitting Diodes ◽

Light Emitting ◽

Decay Data ◽

Light Emitting Devices ◽

Organic Light Emitting Diode ◽

Organic Light ◽

Extrapolation Model ◽

Accelerated Life

For predicting life for light-emitting devices quickly and accurately, a novel life prediction model, namely an extrapolation model of accelerated life and stress, has been proposed. In this model, a Weibull function is employed to fit luminance decay data under multiple groups of accelerated stresses, and the corresponding accelerated life is obtained. By determination coefficients and root mean square errors, a power function is determined as an extrapolated function to describe the relationship between accelerated life and stress and the life of the light-emitting devices. For organic light-emitting diodes, three groups of constant-stress accelerated degradation tests were conducted by increasing current stress. An extrapolation model of accelerated life and stress was applied to process the collected luminance decay data and was evaluated by a careful comparison with organic light-emitting diode life. The results indicate that the self-designed experimental scheme for organic light-emitting diode is feasible and versatile; the predicted life is 17,113 hours, which is close to the service life derived from user feedback, and the relative error is only 2.2%. This shows that the extrapolation model of accelerated life and stress has high precision; the model reveals the expected law of luminance changing with time and intuitively depicts the life characteristics under accelerated stresses without conventional life tests. This will pave the way for a new method to predict and evaluate the life of modern light-emitting devices.

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