Top-Emitting Organic Light-Emitting Devices Based on Silicon Substrate with High Luminance and Low Turn-on Voltage

2004 ◽  
Vol 22 (1) ◽  
pp. 233-235 ◽  
Author(s):  
Wu Zhi-Jun ◽  
Chen Shu-Fen ◽  
Yang Hui-Shan ◽  
Zhao Yi ◽  
Li Chuan-Nan ◽  
...  
Keyword(s):  
Silicon Substrate ◽  
High Luminance ◽  
Light Emitting ◽  
Light Emitting Devices ◽  
Turn On ◽  
Organic Light ◽  
Organic Light Emitting Devices

Top-emitting organic light-emitting devices based on silicon substrate using Ag electrode

2004 ◽  
Vol 19 (9) ◽  
pp. 1138-1140 ◽  
Author(s):  
Zhijun Wu ◽  
Shufen Chen ◽  
Huishan Yang ◽  
Yi Zhao ◽  
Jingying Hou ◽  
...  
Keyword(s):  
Silicon Substrate ◽  
Light Emitting ◽  
Light Emitting Devices ◽  
Ag Electrode ◽  
Organic Light ◽  
Organic Light Emitting Devices

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

2019 ◽  
Vol 7 (9) ◽  
pp. 2686-2698 ◽  
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.

scholarly journals Sub–turn-on exciton quenching due to molecular orientation and polarization in organic light-emitting devices

2020 ◽  
Vol 6 (32) ◽  
pp. eabb2659
Author(s):  
John S. Bangsund ◽  
Jack R. Van Sambeek ◽  
Nolan M. Concannon ◽  
Russell J. Holmes
Keyword(s):  
Transport Layer ◽  
Electron Transport Layer ◽  
Intrinsic Polarization ◽  
Light Emitting ◽  
Light Emitting Devices ◽  
Turn On ◽  
Organic Light ◽  
Organic Light Emitting Devices ◽  
Lock In ◽  
Selection Of

The efficiency of organic light-emitting devices (OLEDs) is often limited by roll-off, where efficiency decreases with increasing bias. In most OLEDs, roll-off primarily occurs due to exciton quenching, which is commonly assumed to be active only above device turn-on. Below turn-on, exciton and charge carrier densities are often presumed to be too small to cause quenching. Using lock-in detection of photoluminescence, we find that this assumption is not generally valid; luminescence can be quenched by >20% at biases below turn-on. We show that this low-bias quenching is due to hole accumulation induced by intrinsic polarization of the electron transport layer (ETL). Further, we demonstrate that selection of nonpolar ETLs or heating during deposition minimizes these losses, leading to efficiency enhancements of >15%. These results reveal design rules to optimize efficiency, clarify how ultrastable glasses improve OLED performance, and demonstrate the importance of quantifying exciton quenching at low bias.

scholarly journals Highly efficient, ultralow turn-on voltage red and white organic light-emitting devices based on a novel exciplex host

2021 ◽  
Author(s):  
Jian Song ◽  
Fujun Zhang ◽  
Liping Yang ◽  
Keming Chen ◽  
Asu Li ◽  
...  
Keyword(s):  
Power Efficiency ◽  
High Performance ◽  
Maximum Power ◽  
Light Emitting ◽  
Light Emitting Devices ◽  
Turn On ◽  
Highly Efficient ◽  
Organic Light ◽  
White Oleds ◽  
Organic Light Emitting Devices

We have prepared high-performance white OLEDs based on exciplex systems and blue ultra-thin FIrPic layers, exhibiting a low turn-on voltage of 2.2 V with a maximum power efficiency of 34.1 lm W−1, and the CIE coordinate (0.33,0.33) at 1000 cd m−2.

scholarly journals Dynamic turn-on behavior of organic light-emitting devices with different work function cathode metals under fast pulse excitation

2003 ◽  
Vol 94 (12) ◽  
pp. 7796 ◽  
Author(s):  
Musubu Ichikawa ◽  
Junko Amagai ◽  
Yasuhiro Horiba ◽  
Toshiki Koyama ◽  
Yoshio Taniguchi
Keyword(s):  
Work Function ◽  
Pulse Excitation ◽  
Light Emitting ◽  
Light Emitting Devices ◽  
Turn On ◽  
Organic Light ◽  
Organic Light Emitting Devices ◽  
Fast Pulse

The study of intramolecular decay and intermolecular energy transfer for phosphorescent organic light-emitting devices

2021 ◽  
Vol 23 (12) ◽  
pp. 7495-7503
Author(s):  
Wanlin Cai ◽  
Kai Ren ◽  
Ancong Zhao ◽  
Xiulan Wu ◽  
Rongxing He ◽  
...  
Keyword(s):  
Energy Transfer ◽  
Rational Design ◽  
Energy Transfer Efficiency ◽  
Transfer Efficiency ◽  
Light Emitting ◽  
Light Emitting Devices ◽  
Organic Light ◽  
Intermolecular Energy ◽  
Intermolecular Energy Transfer ◽  
Organic Light Emitting Devices

Compared to the PtOO7-based system, the greater EQE of the PtON7-based system is mainly governed by the stronger energy transfer efficiency (ηEET); thus, it is necessary to evaluate ηEET from hosts to guests for the rational design of OLEDs.

Mono-, di- and tri-nuclear PtII(C^N)(N-donor ligand)Cl complexes showing aggregation-induced phosphorescent emission (AIPE) behavior for efficient solution-processed organic light-emitting devices

2021 ◽  
Author(s):  
Xi Chen ◽  
Yuling Sun ◽  
Xinyi Zhao ◽  
Xuming Deng ◽  
Xiaolong Yang ◽  
...  
Keyword(s):  
Efficient Solution ◽  
Solution Processed ◽  
Donor Ligand ◽  
Light Emitting ◽  
Light Emitting Devices ◽  
Organic Light ◽  
Organic Light Emitting Devices

Mono-, di- and tri-nuclear PtII(C^N)(N-donor ligand)Cl complexes Ph-PAYPt1, Ph-PAYPt2 and Ph-PAYPt3 are designed and prepared.

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