Surface Ligand Engineering for Efficient Perovskite Nanocrystal-Based Light-Emitting Diodes

2019 ◽  
Vol 11 (8) ◽  
pp. 8428-8435 ◽  
Author(s):  
Jong Hyun Park ◽  
Ah-young Lee ◽  
Jae Choul Yu ◽  
Yun Seok Nam ◽  
Yonghoon Choi ◽  
...  
Keyword(s):  
Light Emitting Diodes ◽  
Light Emitting ◽  
Surface Ligand

Surfacial ligand management of a perovskite film for efficient and stable light-emitting diodes

2019 ◽  
Vol 7 (46) ◽  
pp. 14725-14730
Author(s):  
Wan-Shan Shen ◽  
Shuai Yuan ◽  
Qi-Sheng Tian ◽  
Yi-Chen Tao ◽  
Qiang Wang ◽  
...  
Keyword(s):  
Light Emitting Diodes ◽  
Light Emitting ◽  
Surface Ligand

The EQE of green CsPbBr3 PeLEDs increased to 11.1% through the surface ligand management.

scholarly journals Enhancing the Performance of CdSe/CdS Dot-in-Rod Light-Emitting Diodes via Surface Ligand Modification

2018 ◽  
Vol 10 (6) ◽  
pp. 5665-5672 ◽  
Author(s):  
Prachi Rastogi ◽  
Francisco Palazon ◽  
Mirko Prato ◽  
Francesco Di Stasio ◽  
Roman Krahne
Keyword(s):  
Light Emitting Diodes ◽  
Light Emitting ◽  
Ligand Modification ◽  
Surface Ligand

Enhanced Performance of Light-Emitting Diodes by Surface Ligand Modification on Quantum Dots

2015 ◽  
Vol 15 (9) ◽  
pp. 7169-7172 ◽  
Author(s):  
Byoung-Ho Kang ◽  
Sang-Won Lee ◽  
Sung-Woo Lim ◽  
Ju-Seong Kim ◽  
Gopalan Sai-Anand ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Light Emitting Diodes ◽  
Light Emitting ◽  
Ligand Modification ◽  
Surface Ligand

Surface Ligand Dynamics-Guided Preparation of Quantum Dots–Cellulose Composites for Light-Emitting Diodes

2015 ◽  
Vol 7 (29) ◽  
pp. 15830-15839 ◽  
Author(s):  
Ding Zhou ◽  
Haoyang Zou ◽  
Min Liu ◽  
Kai Zhang ◽  
Yu Sheng ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Light Emitting Diodes ◽  
Light Emitting ◽  
Cellulose Composites ◽  
Surface Ligand

Conjugated Alkylamine by Two‐Step Surface Ligand Engineering in CsPbBr 3 Perovskite Nanocrystals for Efficient Light‐Emitting Diodes

ChemNanoMat ◽  
2018 ◽  
Vol 5 (3) ◽  
pp. 318-322 ◽  
Author(s):  
Li Zhang ◽  
Qiong Zhang ◽  
Xiangyu Xing ◽  
Yuanzhi Jiang ◽  
Tingwei He ◽  
...  
Keyword(s):  
Light Emitting Diodes ◽  
Light Emitting ◽  
Perovskite Nanocrystals ◽  
Surface Ligand

Injecting Inter-Layers and the Built-in Potential of Blue Polymer Light-Emitting Diodes

2000 ◽  
Vol 660 ◽  
Author(s):  
Thomas M. Brown ◽  
Ian S. Millard ◽  
David J. Lacey ◽  
Jeremy H. Burroughes ◽  
Richard H. Friend ◽  
...  
Keyword(s):  
Indium Tin Oxide ◽  
Light Emitting Diodes ◽  
Basic Structure ◽  
Thin Layers ◽  
Carrier Injection ◽  
Semiconducting Polymer ◽  
Light Emitting ◽  
Physical Mechanisms ◽  
Organic Solid ◽  
Polymer Light Emitting Diodes

ABSTRACTThe semiconducting-polymer/injecting-electrode heterojunction plays a crucial part in the operation of organic solid state devices. In polymer light-emitting diodes (LEDs), a common fundamental structure employed is Indium-Tin-Oxide/Polymer/Al. However, in order to fabricate efficient devices, alterations to this basic structure have to be carried out. The insertion of thin layers, between the electrodes and the emitting polymer, has been shown to greatly enhance LED performance, although the physical mechanisms underlying this effect remain unclear. Here, we use electro-absorption measurements of the built-in potential to monitor shifts in the barrier height at the electrode/polymer interface. We demonstrate that the main advantage brought about by inter-layers, such as poly(ethylenedioxythiophene)/poly(styrene sulphonic acid) (PEDOT:PSS) at the anode and Ca, LiF and CsF at the cathode, is a marked reduction of the barrier to carrier injection. The electro- absorption results also correlate with the electroluminescent characteristics of the LEDs.

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