Highly efficient and stable blue quantum-dot light-emitting diodes based on polyfluorenes with carbazole pendent groups as hole-transporting materials

2021 ◽  
Vol 92 ◽  
pp. 106138
Author(s):  
Peili Gao ◽  
Jianing Wang ◽  
Lunhui Wang ◽  
Dan Wang ◽  
Wen Peng ◽  
...  
Keyword(s):  
Quantum Dot ◽  
Light Emitting Diodes ◽  
Light Emitting ◽  
Highly Efficient ◽  
Pendent Groups ◽  
Hole Transporting ◽  
Hole Transporting Materials

Novel Hole-Transporting Materials with High Triplet Energy for Highly Efficient and Stable Organic Light-Emitting Diodes

2016 ◽  
Vol 120 (33) ◽  
pp. 18748-18755 ◽  
Author(s):  
Hirohiko Fukagawa ◽  
Takahisa Shimizu ◽  
Hiroyuki Kawano ◽  
Shota Yui ◽  
Toshinobu Shinnai ◽  
...  
Keyword(s):  
Light Emitting Diodes ◽  
Organic Light Emitting Diodes ◽  
Triplet Energy ◽  
Light Emitting ◽  
Highly Efficient ◽  
Organic Light ◽  
Hole Transporting ◽  
Hole Transporting Materials

scholarly journals Polymeric Hole Transport Materials for Red CsPbI3 Perovskite Quantum-Dot Light-Emitting Diodes

Polymers ◽  
2021 ◽  
Vol 13 (6) ◽  
pp. 896
Author(s):  
Zong-Liang Tseng ◽  
Shih-Hung Lin ◽  
Jian-Fu Tang ◽  
Yu-Ching Huang ◽  
Hsiang-Chih Cheng ◽  
...  
Keyword(s):  
Quantum Dot ◽  
Comparative Study ◽  
External Quantum Efficiency ◽  
Light Emitting Diodes ◽  
Hole Transport ◽  
Device Performance ◽  
Light Emitting ◽  
Device Structures ◽  
Hole Transporting ◽  
Hole Transporting Materials

In this study, the performances of red CsPbI3-based all-inorganic perovskite quantum-dot light-emitting diodes (IPQLEDs) employing polymeric crystalline Poly(3-hexylthiophene-2,5-diyl) (P3HT), poly(9-vinycarbazole) (PVK), Poly(N,N′-bis-4-butylphenyl-N,N′-bisphenyl)benzidine (Poly-TPD) and 9,9-Bis[4-[(4-ethenylphenyl)methoxy]phenyl]-N2,N7-di-1-naphthalenyl-N2,N7-diphenyl-9H-fluorene-2,7-diamine (VB-FNPD) as the hole transporting layers (HTLs) have been demonstrated. The purpose of this work is an attempt to promote the development of device structures and hole transporting materials for the CsPbI3-based IPQLEDs via a comparative study of different HTLs. A full-coverage quantum dot (QD) film without the aggregation can be obtained by coating it with VB-FNPD, and thus, the best external quantum efficiency (EQE) of 7.28% was achieved in the VB-FNPD device. We also reported a standing method to further improve the degree of VB-FNPD polymerization, resulting in the improved device performance, with the EQE of 8.64%.

Highly Efficient Quantum-Dot Light-Emitting Diodes with DNA−CTMA as a Combined Hole-Transporting and Electron-Blocking Layer

ACS Nano ◽  
2009 ◽  
Vol 3 (3) ◽  
pp. 737-743 ◽  
Author(s):  
Qingjiang Sun ◽  
Guru Subramanyam ◽  
Liming Dai ◽  
Michael Check ◽  
Angela Campbell ◽  
...  
Keyword(s):  
Quantum Dot ◽  
Light Emitting Diodes ◽  
Blocking Layer ◽  
Electron Blocking Layer ◽  
Light Emitting ◽  
Highly Efficient ◽  
Hole Transporting

An Efficient Hole Transporting Polymer for Quantum Dot Light‐Emitting Diodes

2021 ◽  
pp. 2100731
Author(s):  
Wenhai Wu ◽  
Zhao Chen ◽  
Yunfeng Zhan ◽  
Bochen Liu ◽  
Weidong Song ◽  
...  
Keyword(s):  
Quantum Dot ◽  
Light Emitting Diodes ◽  
Light Emitting ◽  
Hole Transporting

Solution-processable highly efficient deep-red and orange organic light-emitting diodes based on multi-functional Ir(iii) complexes

2017 ◽  
Vol 5 (38) ◽  
pp. 10029-10038 ◽  
Author(s):  
Woosum Cho ◽  
Ganguri Sarada ◽  
Athithan Maheshwaran ◽  
Yeong-Soon Gal ◽  
Yeonsig Nam ◽  
...  
Keyword(s):  
Light Emitting Diodes ◽  
Organic Light Emitting Diodes ◽  
Improve Performance ◽  
Light Emitting ◽  
Highly Efficient ◽  
Organic Light ◽  
Hole Transporting ◽  
Solution Processable

Linking the hole transporting/electron transporting functional moieties to the Ir(iii) complex is a key strategy to improve performance of PhOLEDs.

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