Photochromic control of a plasmon–quantum dots coupled system

Nanoscale ◽  
2019 ◽  
Vol 11 (1) ◽  
pp. 258-265 ◽  
Author(s):  
Gwénaëlle Lamri ◽  
Artur Movsesyan ◽  
Edite Figueiras ◽  
Jana B. Nieder ◽  
Jean Aubard ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Quantum Dot ◽  
Light Emission ◽  
Coupled System ◽  
System P

The enhancement and the control of quantum dot (QD) light emission is a challenge for many applications.

Cavity Design and Optimization of Hybrid Quantum Dot Organic Light Emitting Devices for Blue Light Emission

2020 ◽  
Vol 15 (11) ◽  
pp. 1364-1373
Author(s):  
Iman E. Shaaban ◽  
Ahmed S. Samra ◽  
Bedir Yousif ◽  
N. A. Alghamdi ◽  
Shamia El-Sherbiny ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Quantum Dot ◽  
Blue Light ◽  
Light Emission ◽  
Cdse Qds ◽  
Blue Light Emission ◽  
Light Emitting ◽  
Light Emitting Devices ◽  
Organic Light ◽  
Organic Light Emitting Devices

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.

A new route toward light emission from Ge: tensile-strained quantum dots

Nanoscale ◽  
2015 ◽  
Vol 7 (19) ◽  
pp. 8725-8730 ◽  
Author(s):  
Qimiao Chen ◽  
Yuxin Song ◽  
Kai Wang ◽  
Li Yue ◽  
Pengfei Lu ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Quantum Dot ◽  
Light Emission ◽  
Ge Quantum Dot

Tensile strained Ge quantum dot will be a promising new light emission material.

scholarly journals Discrimination between FRET and non-FRET quenching in a photochromic CdSe quantum dot/dithienylethene dye system

Nanoscale ◽  
2014 ◽  
Vol 6 (23) ◽  
pp. 14200-14203 ◽  
Author(s):  
Lars Dworak ◽  
Andreas J. Reuss ◽  
Marc Zastrow ◽  
Karola Rück-Braun ◽  
Josef Wachtveitl
Keyword(s):  
Quantum Dots ◽  
Quantum Dot ◽  
Cdse Quantum Dots ◽  
System P ◽  
Cdse Quantum Dot

Reversible switching between the FRET and the non-FRET state in a highly defined nanostructure composed of CdSe quantum dots and a photoswitch is reported.

Improving the luminescence performance of quantum dot-based photonic crystals for white-light emission

2016 ◽  
Vol 4 (1) ◽  
pp. 39-44 ◽  
Author(s):  
Heng Li ◽  
Zhaohua Xu ◽  
Bin Bao ◽  
Ning Sun ◽  
Yanlin Song
Keyword(s):  
Quantum Dots ◽  
Photonic Crystal ◽  
Photonic Crystals ◽  
Quantum Dot ◽  
Crystal Structures ◽  
White Light ◽  
Light Emission ◽  
White Light Emission ◽  
Bright White Light ◽  
Luminescence Performance

A very bright white light was obtained by combining the advantages of red, green and blue quantum dots with photonic crystal structures.

Theoretical analysis of light emission from a coupled system of a photonic nanocavity and a quantum dot

2008 ◽  
Vol 5 (9) ◽  
pp. 2828-2830 ◽  
Author(s):  
M. Yamaguchi ◽  
T. Asano ◽  
M. Fujita ◽  
S. Noda
Keyword(s):  
Theoretical Analysis ◽  
Quantum Dot ◽  
Light Emission ◽  
Coupled System

scholarly journals Enhanced light emission of quantum dot films by scattering of poly(zinc methacrylate) coating CdZnSeS/ZnS quantum dots and high refractive index BaTiO3 nanoparticles

RSC Advances ◽  
2020 ◽  
Vol 10 (53) ◽  
pp. 31705-31710
Author(s):  
Hongcheng Yang ◽  
Miao Zhou ◽  
Haodong Tang ◽  
Mingyu Sun ◽  
Pai Liu ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Refractive Index ◽  
Quantum Dot ◽  
Light Emission ◽  
High Refractive Index ◽  
Scattering Coefficient ◽  
Batio3 Nanoparticles

We report QD films based on a poly(zinc methacrylate) coating with alloyed green-emitting CdZnSeS/ZnS quantum dots (QDs@PZnMA) together with high refractive-index BaTiO3 nanoparticles to enhance the scattering coefficient of the QD films.

Anionic polymerization by an electron transfer process from a CdSe quantum dot–perylenediimide (PDI) system

RSC Advances ◽  
2015 ◽  
Vol 5 (36) ◽  
pp. 28228-28232 ◽  
Author(s):  
Edina Rusen ◽  
Alexandra Mocanu ◽  
Leona Cristina Nistor ◽  
Piétrick Hudhomme ◽  
Aurel Diacon
Keyword(s):  
Quantum Dots ◽  
Electron Transfer ◽  
Quantum Dot ◽  
Transfer Process ◽  
Anionic Polymerization ◽  
Cdse Quantum Dots ◽  
Electron Transfer Process ◽  
System P ◽  
Cdse Quantum Dot ◽  
Physical Interactions

Reversible physical interactions between CdSe quantum dots (QDs) and perylenediimide (PDI) derivatives have been investigated.

scholarly journals Enhancement of organic solar cell performance by incorporating gold quantum dots (AuQDs) on a plasmonic grating

2020 ◽  
Vol 2 (7) ◽  
pp. 2950-2957 ◽  
Author(s):  
Sopit Phetsang ◽  
Supeera Nootchanat ◽  
Chutiparn Lertvachirapaiboon ◽  
Ryousuke Ishikawa ◽  
Kazunari Shinbo ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Solar Cells ◽  
Solar Cell ◽  
Quantum Dot ◽  
Organic Solar Cells ◽  
Organic Solar Cell ◽  
Cell Performance ◽  
Solar Cell Performance ◽  
System P ◽  
Plasmonic Grating

The performance of organic solar cells was improved by the effect of a synergistic gold quantum dot/plasmonic grating system.

scholarly journals Plasmon-Enhanced Blue-Light Emission of Stable Perovskite Quantum Dot Membranes

Nanomaterials ◽  
2019 ◽  
Vol 9 (5) ◽  
pp. 770 ◽  
Author(s):  
Kai Gu ◽  
Hongshang Peng ◽  
Siwei Hua ◽  
Yusong Qu ◽  
Di Yang
Keyword(s):  
Quantum Dots ◽  
Quantum Dot ◽  
Blue Light ◽  
Polyvinylidene Fluoride ◽  
Fluorescence Enhancement ◽  
Light Emission ◽  
Electrospun Nanofibers ◽  
Layer By Layer ◽  
Blue Light Emission ◽  
Molecular Group

A series of stable and color-tunable MAPbBr3−xClx quantum dot membranes were fabricated via a cost-efficient high-throughput technology. MAPbBr3−xClx quantum dots grown in-situ in polyvinylidene fluoride electrospun nanofibers exhibit extraordinary stability. As polyvinylidene fluoride can prevent the molecular group MA+ from aggregating, MAPbBr3−xClx quantum dots are several nanometers and monodisperse in polyvinylidene fluoride fiber. As-prepared MAPbBr3−xClx quantum dot membranes exhibit the variable luminous color by controlling the Cl− content of MAPbBr3−xClx quantum dots. To improve blue-light emission efficiency, we successfully introduced Ag nanoparticle nanofibers into MAPbBr1.2Cl1.8 quantum dot membranes via layer-by-layer electrospinning and obtained ~4.8 folds fluorescence enhancement for one unit. Furthermore, the originality explanation for the fluorescence enhancement of MAPbBr3−xClx quantum dots is proposed based on simulating optical field distribution of the research system.

scholarly journals Quantum dot cellular uptake and toxicity in the developing brain: implications for use as imaging probes

2019 ◽  
Vol 1 (9) ◽  
pp. 3424-3442 ◽  
Author(s):  
Mengying Zhang ◽  
Brittany P. Bishop ◽  
Nicole L. Thompson ◽  
Kate Hildahl ◽  
Binh Dang ◽  
...  
Keyword(s):  
Central Nervous System ◽  
Quantum Dots ◽  
Nervous System ◽  
Quantum Dot ◽  
Cellular Uptake ◽  
Therapeutic Agents ◽  
Semiconductor Quantum Dots ◽  
System P ◽  
Imaging Probes ◽  
The Central Nervous System

Nanometer-sized luminescent semiconductor quantum dots (QDs) have been utilized as imaging and therapeutic agents in a variety of disease settings, including diseases of the central nervous system.

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