Gaining Insight into the Underlayer Treatment for in Situ Fabrication of Efficient Perovskite Nanocrystal-Based Light-Emitting Diodes

2019 ◽  
Vol 123 (28) ◽  
pp. 17353-17359 ◽  
Author(s):  
Imran Muhammad ◽  
Dengbao Han ◽  
Ali Shmshad ◽  
Xin Zhang ◽  
Chenhui Wang ◽  
...  
Keyword(s):  
Light Emitting Diodes ◽  
Light Emitting ◽  
In Situ Fabrication ◽  
Insight Into ◽  
Gaining Insight

In Situ Fabrication of Bendable Microscale Hexagonal Pyramids Array Vertical Light Emitting Diodes with Graphene as Stretchable Electrical Interconnects

ACS Photonics ◽  
2014 ◽  
Vol 1 (5) ◽  
pp. 421-429 ◽  
Author(s):  
Liancheng Wang ◽  
Jun Ma ◽  
Zhiqiang Liu ◽  
Xiaoyan Yi ◽  
Hongwei Zhu ◽  
...  
Keyword(s):  
Light Emitting Diodes ◽  
Light Emitting ◽  
In Situ Fabrication ◽  
Electrical Interconnects

scholarly journals In situ fabrication of a luminescent copper nanocluster/eggshell membrane composite and its application in visual detection of Ag+ ions, light-emitting diodes and surface patterning

2019 ◽  
Vol 18 (12) ◽  
pp. 2942-2951
Author(s):  
Chunbo Li ◽  
Congying Shao ◽  
Lu Li ◽  
Xianhu Liu ◽  
Mingzhu Liu
Keyword(s):  
Light Emitting Diodes ◽  
Visual Detection ◽  
Surface Patterning ◽  
Eggshell Membrane ◽  
Copper Nanoclusters ◽  
Light Emitting ◽  
In Situ Fabrication

A smart and multifunctional 2D luminescent nanocomposite was fabricated facilely by in situ generation of copper nanoclusters embedded in monolithic eggshell membrane.

scholarly journals Dimension control of in situ fabricated CsPbClBr2 nanocrystal films toward efficient blue light-emitting diodes

2020 ◽  
Vol 11 (1) ◽  
Author(s):  
Chenhui Wang ◽  
Dengbao Han ◽  
Junhui Wang ◽  
Yingguo Yang ◽  
Xinyue Liu ◽  
...  
Keyword(s):  
Quantum Well ◽  
Light Emitting Diodes ◽  
Blue Emission ◽  
Light Emitting ◽  
Mixed Ligands ◽  
Dimension Control ◽  
Nanocrystal Films ◽  
Width Distribution ◽  
Quantum Well Width

AbstractIn the field of perovskite light-emitting diodes (PeLEDs), the performance of blue emissive electroluminescence devices lags behind the other counterparts due to the lack of fabrication methodology. Herein, we demonstrate the in situ fabrication of CsPbClBr2 nanocrystal films by using mixed ligands of 2-phenylethanamine bromide (PEABr) and 3,3-diphenylpropylamine bromide (DPPABr). PEABr dominates the formation of quasi-two-dimensional perovskites with small-n domains, while DPPABr induces the formation of large-n domains. Strong blue emission at 470 nm with a photoluminescence quantum yield up to 60% was obtained by mixing the two ligands due to the formation of a narrower quantum-well width distribution. Based on such films, efficient blue PeLEDs with a maximum external quantum efficiency of 8.8% were achieved at 473 nm. Furthermore, we illustrate that the use of dual-ligand with respective tendency of forming small-n and large-n domains is a versatile strategy to achieve narrow quantum-well width distribution for photoluminescence enhancement.

Excitonic Creation of Highly Luminescent Defects In Situ in Working Organic Light-Emitting Diodes

2017 ◽  
Vol 6 (2) ◽  
pp. 1700856 ◽  
Author(s):  
Yong-Biao Zhao ◽  
Grayson L. Ingram ◽  
Xi-Wen Gong ◽  
Xi-Yan Li ◽  
Li-Na Quan ◽  
...  
Keyword(s):  
Light Emitting Diodes ◽  
Organic Light Emitting Diodes ◽  
Light Emitting ◽  
Organic Light

scholarly journals Suppressing the Initial Growth of Sidewall GaN by Modifying Micron-Sized Patterned Sapphire Substrate with H3PO4-Based Etchant

Micromachines ◽  
2018 ◽  
Vol 9 (12) ◽  
pp. 622 ◽  
Author(s):  
Wen-Yang Hsu ◽  
Yuan-Chi Lian ◽  
Pei-Yu Wu ◽  
Wei-Min Yong ◽  
Jinn-Kong Sheu ◽  
...  
Keyword(s):  
Sapphire Substrate ◽  
Light Emitting Diodes ◽  
Ex Situ ◽  
Initial Growth ◽  
Patterned Sapphire Substrate ◽  
Light Emitting ◽  
Sapphire Substrates ◽  
Patterned Sapphire Substrates

Micron-sized patterned sapphire substrates (PSS) are used to improve the performance of GaN-based light-emitting diodes (LEDs). However, the growth of GaN is initiated not only from the bottom c-plane but also from the sidewall of the micron-sized patterns. Therefore, the coalescence of these GaN crystals creates irregular voids. In this study, two kinds of nucleation layers (NL)—ex-situ AlN NL and in-situ GaN NL—were used, and the growth of sidewall GaN was successfully suppressed in both systems by modifying the micron-sized PSS surface.

scholarly journals Optical Patterning: Direct Optical Patterning of Quantum Dot Light‐Emitting Diodes via In Situ Ligand Exchange (Adv. Mater. 46/2020)

2020 ◽  
Vol 32 (46) ◽  
pp. 2070346
Author(s):  
Himchan Cho ◽  
Jia‐Ahn Pan ◽  
Haoqi Wu ◽  
Xinzheng Lan ◽  
Igor Coropceanu ◽  
...  
Keyword(s):  
Quantum Dot ◽  
Ligand Exchange ◽  
Light Emitting Diodes ◽  
Light Emitting ◽  
Optical Patterning

In Situ Ligand Bonding Management of CsPbI 3 Perovskite Quantum Dots Enables High‐Performance Photovoltaics and Red Light‐Emitting Diodes

2020 ◽  
Vol 59 (49) ◽  
pp. 22230-22237 ◽  
Author(s):  
Junwei Shi ◽  
Fangchao Li ◽  
Yan Jin ◽  
Cheng Liu ◽  
Ben Cohen‐Kleinstein ◽  
...  
Keyword(s):  
Quantum Dots ◽  
High Performance ◽  
Light Emitting Diodes ◽  
Red Light ◽  
Light Emitting ◽  
Perovskite Quantum Dots

Efficient orange-red phosphorescent organic light-emitting diodes using an in situ synthesized copper(i) complex as the emitter

2014 ◽  
Vol 2 (31) ◽  
pp. 6333-6341 ◽  
Author(s):  
Feng Wei ◽  
Jacky Qiu ◽  
Xiaochen Liu ◽  
Jianqiang Wang ◽  
Huibo Wei ◽  
...  
Keyword(s):  
Light Emitting Diodes ◽  
Organic Light Emitting Diodes ◽  
Light Emitting ◽  
Organic Light

Orange-red phosphorescent organic light-emitting diodes with inexpensive and eco-friendly luminescent Cu(i) complexes as the emitter are successfully realized by a codeposition method

51.2: Invited Paper: Efficient Light‐emitting Diodes Based on In‐situ Fabricated Perovskite Nanocrystals

2019 ◽  
Vol 50 (S1) ◽  
pp. 567-567
Author(s):  
Dengbao Han ◽  
Muhammad Imran ◽  
Xin Zhang ◽  
Chenhui Wang ◽  
Shuai Chang ◽  
...  
Keyword(s):  
Light Emitting Diodes ◽  
Light Emitting ◽  
Perovskite Nanocrystals

Enhanced stability and performance of light-emitting diodes based on in situ fabricated FAPbBr3 nanocrystals via ligand compensation with n-octylphosphonic acid

2020 ◽  
Vol 8 (29) ◽  
pp. 9936-9944 ◽  
Author(s):  
Yanan Wu ◽  
Lihui Liu ◽  
Wei Wang ◽  
Wenzhu Zhang ◽  
Hongtao Yu ◽  
...  
Keyword(s):  
Light Emitting Diodes ◽  
Light Emitting ◽  
Perovskite Nanocrystals ◽  
Device Efficiency ◽  
Improved Stability ◽  
And Performance ◽  
Enhanced Stability

Dual ligands are introduced for the in situ fabrication of perovskite nanocrystals, leading to higher crystallinity, improved stability and device efficiency.

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