scholarly journals Aggregation-induced emission polymers for high performance PLEDs with low efficiency roll-off

2020 ◽  
Vol 4 (4) ◽  
pp. 1206-1211 ◽  
Author(s):  
Jiabao Gu ◽  
Zeng Xu ◽  
Dongge Ma ◽  
Anjun Qin ◽  
Ben Zhong Tang
Keyword(s):  
High Performance ◽  
Solution Process ◽  
Aggregation Induced Emission ◽  
Low Efficiency

AIE polymers pTPE-DPA-Cz and pTPE-DPA-Flu are synthesized and used as emitting layers in doped and non-doped polymeric LEDs through a solution process, and show maximum EQE of 3.26% in the doped PLEDs and CE of 3.69 cd A−1 for the non-doped PLEDs and low efficiency roll-off.

scholarly journals Design and performance study of high efficiency/low efficiency roll-off/high CRI hybrid WOLEDs based on aggregation-induced emission materials as fluorescent emitters

2019 ◽  
Vol 3 (12) ◽  
pp. 2652-2658 ◽  
Author(s):  
Zeng Xu ◽  
Jiabao Gu ◽  
Jian Huang ◽  
Chengwei Lin ◽  
Yuanzhao Li ◽  
...  
Keyword(s):  
High Performance ◽  
High Efficiency ◽  
Performance Study ◽  
Aggregation Induced Emission ◽  
Low Efficiency ◽  
And Performance

AIEgens TPB-AC and CP-BP-PXZ are used as non-doped blue and green layers, and Ir(dmppr-mp)2(divm) doped TCTA is used as red layer to construct high-performance hybrid WOLEDs.

Tetraphenylbenzene-based AIEgens: the Horizontally Oriented Emitters for highly Efficient Non-doped Deep Blue OLEDs and Host for High-Performance Hybrid WOLEDs

2020 ◽  
Author(s):  
Pengbo Han ◽  
Zeng Xu ◽  
Chengwei Lin ◽  
Dongge Ma ◽  
Anjun Qin ◽  
...  
Keyword(s):  
High Performance ◽  
General Strategy ◽  
Flat Panel Displays ◽  
Light Emitting ◽  
Horizontal Orientation ◽  
Deep Blue ◽  
Full Color ◽  
High Emission ◽  
White Oleds ◽  
Low Efficiency

Deep blue organic-emitting fluorophores are crucial for application in white lighting and full color flat-panel displays but emitters with high color quality and efficiency are rare. Herein, novel deep blue AIE luminogens (AIEgens) with various donor units and an acceptor of cyano substituted tetraphenylbenzene (TPB) cores were developed and used to fabricate non-doped deep blue and hybrid white organic light-emitting diodes (OLEDs). Benefiting from its high emission efficiency and high proportion of horizontally oriented dipoles in the film state, the non-doped deep blue device based on CN-TPB-TPA realized a maximum external quantum efficiency 7.27%, with a low efficiency roll-off and CIE coordinates of (0.15, 0.08). Moreover, efficient two-color hybrid warm white OLEDs (CIE<sub>x,y</sub> = 0.43, 0.45) were achieved using CN-TPB-TPA as the blue-emitting layer and phosphor doped host, which realized maximum current, power, external quantum efficiencies 58.0 cd A<sup>-1</sup>, 60.7 lm W<sup>-1</sup> and 19.1%, respectively. This work provides a general strategy to achieve high performance, stable deep blue and hybrid white OLEDs by construction of AIEgens with excellent horizontal orientation

Administration of the D-A structure and steric hindrance effect to construct efficient red emitters for high-performance OLEDs with low efficiency roll-off

2021 ◽  
Vol 192 ◽  
pp. 109398
Author(s):  
Guan-Yu Ding ◽  
Chun-Xiu Zang ◽  
Han Zhang ◽  
Zhong-Min Su ◽  
Guang-Fu Li ◽  
...  
Keyword(s):  
Steric Hindrance ◽  
High Performance ◽  
Low Efficiency

scholarly journals Self-Powered All-Inorganic Perovskite Photodetectors with Fast Response Speed

2021 ◽  
Vol 16 (1) ◽  
Author(s):  
Ting Zhang ◽  
Shibin Li
Keyword(s):  
High Performance ◽  
Solution Process ◽  
Response Speed ◽  
Fast Response ◽  
Single Step ◽  
Inorganic Perovskite ◽  
Perovskite Materials ◽  
Photoactive Materials ◽  
Self Powered ◽  
Solvent Processing

AbstractIn this manuscript, the inorganic perovskite CsPbI2Br and CsPbIBr2 are investigated as photoactive materials that offer higher stability than the organometal trihalide perovskite materials. The fabrication methods allow anti-solvent processing the CsPbIxBr3−x films, overcoming the poor film quality that always occur in a single-step solution process. The introduced diethyl ether in spin-coating process is demonstrated to be successful, and the effects of the anti-solvent on film quality are studied. The devices fabricated using the methods achieve high-performance, self-powered and the stabilized photodetectors show fast response speed. The results illustrate a great potential of all-inorganic CsPbIxBr3−x perovskites in visible photodetection and provide an effective way to achieve high performance devices with self-powered capability.

High-performance inverted planar perovskite solar cells without a hole transport layer via a solution process under ambient conditions

2015 ◽  
Vol 3 (38) ◽  
pp. 19294-19298 ◽  
Author(s):  
Xichang Bao ◽  
Qianqian Zhu ◽  
Meng Qiu ◽  
Ailing Yang ◽  
Yujin Wang ◽  
...  
Keyword(s):  
Relative Humidity ◽  
High Performance ◽  
Perovskite Solar Cells ◽  
Solution Process ◽  
Hole Transport ◽  
Transport Layer ◽  
Hole Transport Layer ◽  
Ambient Conditions ◽  
High Quality ◽  
Ito Glass

High-quality CH3NH3PbI3 perovskite films were directly prepared on simple treated ITO glass in air under a relative humidity of lower than 30%.

Synthesis of red/black phosphorus-based composite nanosheets with Z-scheme heterostructure for high-performance cancer phototherapy

Nanoscale ◽  
2021 ◽  
Author(s):  
Yong Kang ◽  
Zhengjun Li ◽  
Fengying Lu ◽  
Zhiguo Su ◽  
Xiaoyuan Ji ◽  
...  
Keyword(s):  
High Performance ◽  
Research Field ◽  
Black Phosphorus ◽  
Two Dimensional ◽  
The Poor ◽  
Low Efficiency ◽  
Poor Stability

Two dimensional black phosphorus nanosheets (BP NS) have attracted plenty of attentions in the research field of cancer photonic therapy. However, the poor stability and relatively low efficiency in reactive...

High performance, top-emitting, quantum dot light-emitting diodes with all solution-processed functional layers

2017 ◽  
Vol 5 (35) ◽  
pp. 9138-9145 ◽  
Author(s):  
Zhaobing Tang ◽  
Jie Lin ◽  
Lishuang Wang ◽  
Ying Lv ◽  
Yongsheng Hu ◽  
...  
Keyword(s):  
Quantum Dot ◽  
High Performance ◽  
Light Emitting Diodes ◽  
Solution Process ◽  
Solution Processed ◽  
Light Emitting

High performance top-emitting green quantum dot light-emitting diodes have been developed based on an all-solution process and with a bottom Al anode.

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