Water-free synthesis of ZnO quantum dots for application as an electron injection layer in light-emitting electrochemical cells

2017 ◽  
Vol 5 (9) ◽  
pp. 2344-2351 ◽  
Author(s):  
S. Daumann ◽  
D. Andrzejewski ◽  
M. Di Marcantonio ◽  
U. Hagemann ◽  
S. Wepfer ◽  
...  

Large-area light emitters like organic (OLEDs) or quantum dot light-emitting devices (QLEDs) and light-emitting electrochemical cells (LECs) have gained increasing interest due to their cost-effective fabrication on various even flexible substrates.

Nanoscale ◽  
2018 ◽  
Vol 10 (12) ◽  
pp. 5650-5657 ◽  
Author(s):  
Ouyang Wang ◽  
Lei Wang ◽  
Zhaohan Li ◽  
Qiulei Xu ◽  
Qingli Lin ◽  
...  

18% peak external quantum efficiency (EQE) for deep blue QLEDs by using ZnCdS/CdxZn1−xS/ZnS quantum dots.


2013 ◽  
Vol 44 ◽  
pp. 160-162 ◽  
Author(s):  
Christian Ippen ◽  
Tonino Greco ◽  
Armin Wedel ◽  
Yohan Kim ◽  
Jiwan Kim ◽  
...  

2020 ◽  
Vol 15 (11) ◽  
pp. 1364-1373
Author(s):  
Iman E. Shaaban ◽  
Ahmed S. Samra ◽  
Bedir Yousif ◽  
N. A. Alghamdi ◽  
Shamia El-Sherbiny ◽  
...  

The present search handles the blue light emission investigation of hybrid quantum dots organic light-emitting devices. The emissions at 445 nm and 460 nm have been examined for microcavity hybrid quantum dot organic light-emitting devices (QD-OLED) upon quantum dots of CdS and CdSe. External light emissions have been evaluated through a numerical model based on the transfer matrix for electromagnetic plane waves. The devices' optical properties are investigated based on internal reflectance and cavity length by considering the architecture consisting of multilayers thin-film structures. The overall performance of the light-emitting devices with emission at 445 nm showed an improvement of the enhancement factor and narrowing outcoupling emission relative to the devices with emission at 460 nm. Besides, the light-emitting devices based on CdS QDs revealed better performance relative to the devices based on CdSe QDs.


MRS Bulletin ◽  
2008 ◽  
Vol 33 (7) ◽  
pp. 663-669 ◽  
Author(s):  
Franky So ◽  
Junji Kido ◽  
Paul Burrows

AbstractOrganic light-emitting devices (OLEDs) have been widely developed for flat-panel displays, but only recently the efficiency of white OLEDs has risen to the point where they can be considered for solid-state lighting (SSL) applications. In this review, we discuss the requirements of solid-state lighting as they relate to OLEDs. We focus on how the color, efficiency, and cost requirements of general illumination differ from those of displays and how these differences might have an impact on the design of organic SSL. We then present some recent developments in large-area fabrication techniques that might be appropriate for solid-state lighting applications. Finally, we review recent results in the development of organic materials, device architectures, light extraction schemes, and fabrication techniques that can lead to cost-effective OLED lighting.


2017 ◽  
Vol 5 (4) ◽  
pp. 953-959 ◽  
Author(s):  
Dan Bi Choi ◽  
Sohee Kim ◽  
Hee Chang Yoon ◽  
Minji Ko ◽  
Heesun Yang ◽  
...  

In this study, we report the creation of heterostructured alloy core/shell Ag-In-Zn-S (AIZS)/ZnS quantum dots (QDs) by sequential core-forming, alloying and shelling processes and the fabrication of color-tunable QD light-emitting diodes (QLEDs) with a standard device architecture.


IEEE Access ◽  
2020 ◽  
Vol 8 ◽  
pp. 159415-159423
Author(s):  
Lung-Chien Chen ◽  
Ching-Ho Tien ◽  
Po-Wei Tseng ◽  
Zong-Liang Tseng ◽  
Wei-Lun Huang ◽  
...  

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