Influence of Luminescence Quantum Yield, Surface Coating, and Functionalization of Quantum Dots on the Sensitivity of Time-Resolved FRET Bioassays

2013 ◽  
Vol 5 (8) ◽  
pp. 2881-2892 ◽  
Author(s):  
K. David Wegner ◽  
Phung Thi Lanh ◽  
Travis Jennings ◽  
Eunkeu Oh ◽  
Vaibhav Jain ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Quantum Yield ◽  
Yield Surface ◽  
Surface Coating ◽  
Luminescence Quantum Yield ◽  
Time Resolved

scholarly journals Luminescence and photoelectrochemical properties of size-selected aqueous copper-doped Ag–In–S quantum dots

RSC Advances ◽  
2018 ◽  
Vol 8 (14) ◽  
pp. 7550-7557 ◽  
Author(s):  
Alexandra Raevskaya ◽  
Oksana Rozovik ◽  
Anastasiya Novikova ◽  
Oleksandr Selyshchev ◽  
Oleksandr Stroyuk ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Quantum Yield ◽  
Aqueous Solutions ◽  
Luminescence Quantum Yield ◽  
Photoelectrochemical Properties

Colloidal size-selected copper-doped Ag–In–S quantum dots were produced directly in aqueous solutions by fractionation/redispersion with a plethora of emission colors and a top luminescence quantum yield of around 60%.

Efficient and long-lifetime full-color light-emitting diodes using high luminescence quantum yield thick-shell quantum dots

Nanoscale ◽  
2017 ◽  
Vol 9 (36) ◽  
pp. 13583-13591 ◽  
Author(s):  
Huaibin Shen ◽  
Qingli Lin ◽  
Weiran Cao ◽  
Chenchen Yang ◽  
Nathan T. Shewmon ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Quantum Yield ◽  
Light Emitting Diodes ◽  
Luminescence Quantum Yield ◽  
Thick Shell ◽  
High Quantum Yield ◽  
Light Emitting ◽  
High Quantum ◽  
Full Color ◽  
Long Lifetime

Peak external quantum efficiencies (EQEs) of 10.2%, 15.4%, and 15.6% were achieved for red, green, and blue QLEDs, respectively, by using high quantum yield thick-shell QDs.

NIR-Emitting Colloidal Quantum Dots Having 26% Luminescence Quantum Yield in Buffer Solution

2007 ◽  
Vol 129 (23) ◽  
pp. 7218-7219 ◽  
Author(s):  
Sean Hinds ◽  
Stefan Myrskog ◽  
Larissa Levina ◽  
Ghada Koleilat ◽  
Jun Yang ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Quantum Yield ◽  
Colloidal Quantum Dots ◽  
Luminescence Quantum Yield ◽  
Buffer Solution

Enhancement of the Fluorescence Quantum Yield of Thiol-Stabilized CdTe Quantum Dots Through Surface Passivation with Sodium Chloride and Bicarbonate

2018 ◽  
Vol 232 (9-11) ◽  
pp. 1399-1412 ◽  
Author(s):  
Tetiana Dudka ◽  
Stephen V. Kershaw ◽  
Shumin Lin ◽  
Julian Schneider ◽  
Andrey L. Rogach
Keyword(s):  
Quantum Dots ◽  
Quantum Yield ◽  
Radiative Recombination ◽  
Surface Passivation ◽  
Surface Defects ◽  
Fold Increase ◽  
Light Sources ◽  
Recombination Rates ◽  
Time Resolved ◽  
Cdte Qds

Abstract Colloidal quantum dots (QDs) have potential for several applications, e.g. as novel light sources; as photoluminescent probes; and for solar energy conversion devices, but their sensitivity towards their environmental surroundings, and the presence of surface defects may still degrade their emission properties. Herein, we present a post-synthetic treatment of CdTe QDs stabilized by mixed thiol ligands using chloride and bicarbonate ions to achieve near-complete surface passivation, resulting in a two-fold increase of the photoluminescence quantum yield (PL QY) and significant suppression of non-radiative recombination. Time-resolved PL measurements reveal fluorescence lifetime and PL QY trends did not both track identically; in the most favorable cases a suppression of non-radiative recombination and a slight increase in the radiative recombination rates after the salt treatment took place. The optimized conditions demonstrated here are proven to work for different sizes of CdTe QDs, and also show a dependence on the composition of the mixed ligand systems used.

scholarly journals Photostimulated control of luminescence quantum yield for colloidal Ag2S/2-MPA quantum dots

RSC Advances ◽  
2019 ◽  
Vol 9 (64) ◽  
pp. 37312-37320
Author(s):  
Oleg V. Ovchinnikov ◽  
Sergey V. Aslanov ◽  
Mikhail S. Smirnov ◽  
Irina G. Grevtseva ◽  
Aleksey S. Perepelitsa
Keyword(s):  
Quantum Dots ◽  
Quantum Yield ◽  
Ethylene Glycol ◽  
Luminescence Quantum Yield ◽  
Mercaptopropionic Acid

In this paper, we present the results on photoinduced formation of colloidal Ag2S quantum dots with sizes of 1.5–3 nm passivated by 2-mercaptopropionic acid (Ag2S/2-MPA) in the presence of ethylene glycol.

Enhancing stability and luminescence quantum yield of CsPbBr3 quantum dots by embedded in borosilicate glass

2021 ◽  
Vol 874 ◽  
pp. 159962
Author(s):  
Bowen Zhang ◽  
Ke Zhang ◽  
Lingfeng Li ◽  
Congcong Xu ◽  
Rongfei Wang ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Quantum Yield ◽  
Borosilicate Glass ◽  
Luminescence Quantum Yield ◽  
Cspbbr3 Quantum Dots

scholarly journals Electrochemical quantification of Ag2S quantum dots: evaluation of different surface coating ligands for bacteria determination

2020 ◽  
Vol 187 (3) ◽  
Author(s):  
Olaya Amor-Gutiérrez ◽  
Alba Iglesias-Mayor ◽  
Pablo Llano-Suárez ◽  
José M. Costa-Fernández ◽  
Ana Soldado ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Surface Coating ◽  
Ag2s Quantum Dots
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