Chaos Modulation Using Synchronization in Quantum Dot Light Emitting Diode with Optoelectronic Feedback

2021 ◽  
Vol 19 (1) ◽  
pp. 38-48
Author(s):  
Hussein B. Al Husseini ◽  
Mustapha A.A Jebar ◽  
Salam K. Mousa
Keyword(s):  
Theoretical Model ◽  
Quantum Dot ◽  
Coupling Strength ◽  
Light Emitting Diodes ◽  
Light Emitting Diode ◽  
Communication Model ◽  
Light Emitting ◽  
Unidirectional Coupling ◽  
Two Systems ◽  
Communication Scheme

In this research, a communication scheme of chaos modulation (CMO) that depending on two chaotic quantum dot light emitting diodes (QDLEDs) synchronization was evaluated using theoretical model. The perturbation in behavior of the QDLED can be significantly increased by optoelectronic feedback. Changing the coupling strength between the transmitter and receiver in unidirectional coupling greatly contributes to creating a state of total synchronization between the two systems. Furthermore, the proposed communication model was successful by effectively receiving messages.

Communication in Quantum Dot Light Emitting Diode with Optoelectronic Feedback Technique

2020 ◽  
pp. 120-125
Keyword(s):  
Quantum Dot ◽  
Coupling Strength ◽  
Light Emitting Diodes ◽  
Light Emitting Diode ◽  
Light Emitting ◽  
Unidirectional Coupling ◽  
Shift Keying ◽  
Communication Scheme ◽  
Chaos Shift Keying

A communication scheme based on the synchronization of two chaotic quantum dot light emitting diodes is theoretically examined. The Chaos in the quantum dot light emitting is generated by means of a positive optoelectronic feedback technique. Synchronization of the chaos is achieved by varying coupling strength between the transmitter and the receiver as unidirectional coupling. We then test a proposed chaos shift keying communication scheme by successfully transmitting messages.

All-solution processed inverted green quantum dot light-emitting diodes with concurrent high efficiency and long lifetime

2019 ◽  
Vol 6 (10) ◽  
pp. 2009-2015 ◽  
Author(s):  
Zhiwen Yang ◽  
Qianqian Wu ◽  
Gongli Lin ◽  
Xiaochuan Zhou ◽  
Weijie Wu ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Quantum Dot ◽  
High Efficiency ◽  
Light Emitting Diodes ◽  
Light Emitting Diode ◽  
Shell Growth ◽  
Solution Processed ◽  
Light Emitting ◽  
Long Lifetime

An all-solution processed inverted green quantum dot-based light-emitting diode with concurrent high efficiency and long lifetime is obtained by precisely controlled double shell growth of quantum dots.

scholarly journals High-quality CsPbBr3 perovskite nanocrystals for quantum dot light-emitting diodes

RSC Advances ◽  
2017 ◽  
Vol 7 (17) ◽  
pp. 10391-10396 ◽  
Author(s):  
Xiafang Du ◽  
Guan Wu ◽  
Jian Cheng ◽  
Hui Dang ◽  
Kangzhe Ma ◽  
...  
Keyword(s):  
Quantum Yield ◽  
Quantum Dot ◽  
Light Emitting Diodes ◽  
Light Emitting Diode ◽  
Color Purity ◽  
High Quantum Yield ◽  
High Quality ◽  
Light Emitting ◽  
Perovskite Nanocrystals ◽  
High Quantum

We synthesized luminescent CsPbBr3 nanocrystals with a high quantum yield and realized patterning and color-purity light-emitting diode applications.

scholarly journals Colour-Encoded Electroluminescent White Light-emitting Diode Enabled by Perovskite-Cu-In-S Quantum Composites

2021 ◽  
Author(s):  
Seung-Bum Cho ◽  
Jung Inn Sohn ◽  
Sang-Seok Lee ◽  
Seung-Gyun Moon ◽  
Bo Hou ◽  
...  
Keyword(s):  
Quantum Dot ◽  
Light Source ◽  
White Light ◽  
Light Emitting Diodes ◽  
Light Emitting Diode ◽  
Large Area ◽  
Solution Processed ◽  
Light Emitting ◽  
Ambient Lighting ◽  
White Light Emitting Diodes

Solution-processed quantum dot (QD) white light-emitting diodes (WLEDs) have received much attention as a viable light source in the next-generation large-area ambient lighting, flexible photonics and full-colour display backlighting technologies....

Hexamethyldisilazane-mediated, full-solution-processed inverted quantum dot-light-emitting diodes

2017 ◽  
Vol 5 (3) ◽  
pp. 522-526 ◽  
Author(s):  
Yan Fu ◽  
Daekyoung Kim ◽  
Hyoungseok Moon ◽  
Heesun Yang ◽  
Heeyeop Chae
Keyword(s):  
Quantum Dot ◽  
Light Emitting Diodes ◽  
Light Emitting Diode ◽  
Hole Transport ◽  
Transport Layer ◽  
Hole Transport Layer ◽  
Solution Processed ◽  
Solution Deposition ◽  
Light Emitting ◽  
Full Solution

Fabrication of a multilayered quantum dot-light-emitting diode (QLED) with an inverted architecture cannot be usually fully solution-processed mainly due to the significant destruction of the pre-existing quantum dot (QD) emitting layer (EML) occurring during the subsequent solution-deposition of the hole transport layer (HTL).

Highly efficient, all-solution-processed, flexible white quantum dot light-emitting diodes

2018 ◽  
Vol 6 (36) ◽  
pp. 9642-9648 ◽  
Author(s):  
Piaoyang Shen ◽  
Xiaomin Li ◽  
Fan Cao ◽  
Xingwei Ding ◽  
Xuyong Yang
Keyword(s):  
Quantum Dot ◽  
Current Efficiency ◽  
Light Emitting Diodes ◽  
Light Emitting Diode ◽  
Solution Process ◽  
Great Promise ◽  
High Current ◽  
High Current Efficiency ◽  
Light Emitting ◽  
Information Displays

Flexible information displays hold great promise for future optoelectronic applications. Herein, we report the fabrication of an efficient flexible white quantum dot (QD) light-emitting diode (QLED) with mixed red, green and blue QDs as emitters via an all-solution process. The resulting flexible QLED with a pure white emission shows high current efficiency of 10.5 cd A−1.

Full-color capable light-emitting diodes based on solution-processed quantum dot layer stacking

Nanoscale ◽  
2018 ◽  
Vol 10 (14) ◽  
pp. 6300-6305 ◽  
Author(s):  
Ki-Heon Lee ◽  
Chang-Yeol Han ◽  
Eun-Pyo Jang ◽  
Jung-Ho Jo ◽  
Seungki Hong ◽  
...  
Keyword(s):  
Quantum Dot ◽  
Light Emitting Diodes ◽  
Light Emitting Diode ◽  
Zno Nanoparticle ◽  
Solution Processed ◽  
Light Emitting ◽  
Full Color ◽  
Layer Stacking

An all-solution-processed full-color-capable white quantum dot-light-emitting diode was demonstrated by devising a novel emitting layer design of ZnO nanoparticle buffer-mediated B/G/R quantum dot layer stacking.

Patterned mist deposition of tri-colour CdSe/ZnS quantum dot films toward RGB LED devices

2012 ◽  
Vol 20 (2) ◽  
Author(s):  
S. Pickering ◽  
A. Kshirsagar ◽  
J. Ruzyllo ◽  
J. Xu
Keyword(s):  
Quantum Dots ◽  
Quantum Dot ◽  
Light Emitting Diodes ◽  
Light Emitting Diode ◽  
Precursor Solution ◽  
Colloidal Quantum Dots ◽  
Colloidal Solutions ◽  
Light Emitting ◽  
Mist Deposition ◽  
Viable Method

AbstractIn this experiment a technique of mist deposition was explored as a way to form patterned ultra-thin-films of CdSe/ZnS core/shell nanocrystalline quantum dots using colloidal solutions. The objective of this study was to investigate the feasibility of mist deposition as a patterning method for creating multicolour quantum dot light emitting diodes. Mist deposition was used to create three rows of quantum dot light emitting diodes on a single device with each row having a separate colour. The colours chosen were red, green and yellow with corresponding peak wavelengths of 620 nm, 558 nm, and 587 nm. The results obtained from this experiment show that it is possible to create multicolour devices on a single substrate. The peak brightnesses obtained in this experiment for the red, green, and yellow were 508 cd/m, 507 cd/m, and 665 cd/m, respectively. The similar LED brightness is important in display technologies using colloidal quantum dots in a precursor solution to ensure one colour does not dominate the emitted spectrum. Results obtained in-terms of brightness were superior to those achieved with inkjet deposition. This study has shown that mist deposition is a viable method for patterned deposition applied to quantum dot light emitting diode display technologies.

Intrinsic quantum dot based white-light-emitting diodes with a layered coating structure for reduced reabsorption of multiphase phosphors

RSC Advances ◽  
2014 ◽  
Vol 4 (85) ◽  
pp. 45155-45158 ◽  
Author(s):  
Bingxia Zhao ◽  
Delong Zhang ◽  
Kang Sun ◽  
Xiebing Wang ◽  
Rihua Mao ◽  
...  
Keyword(s):  
Quantum Dot ◽  
White Light ◽  
Light Emitting Diodes ◽  
Light Emitting Diode ◽  
Coating Structure ◽  
Light Emitting ◽  
Layered Coating ◽  
Promising Solution ◽  
White Light Emitting Diodes

A white-light-emitting diode (WLED) with a layered coating structure was successfully fabricated, providing a promising solution for the fabrication of intrinsic QD based WLEDs with reduced reabsorption.

Synchronization of Chaotic Quantum Dot Light Emitting Diodes under Optical Feedback Effect

2020 ◽  
pp. 144-148
Keyword(s):  
Quantum Dot ◽  
Delay Time ◽  
Chaos Synchronization ◽  
Optical Feedback ◽  
Light Emitting Diode ◽  
Feedback Effect ◽  
Complete Synchronization ◽  
Light Emitting ◽  
Coupling Methods ◽  
Coupling Parameters

Chaos synchronization of delayed quantum dot light emitting diode has been studied theortetically which are coupled via the unidirectional and bidirectional. at synchronization of chaotic, The dynamics is identical with delayed optical feedback for those coupling methods. Depending on the coupling parameters and delay time the system exhibits complete synchronization, . Under proper conditions, the receiver quantum dot light emitting diode can be satisfactorily synchronized with the transmitter quantum dot light emitting diode due to the optical feedback effect.

Sign in / Sign up

Export Citation Format

Share Document