scholarly journals Hybrid gold nanoparticle–quantum dot self-assembled nanostructures driven by complementary artificial proteins

Nanoscale ◽  
2020 ◽  
Vol 12 (7) ◽  
pp. 4612-4621 ◽  
Author(s):  
Maxence Fernandez ◽  
Agathe Urvoas ◽  
Pascale Even-Hernandez ◽  
Agnès Burel ◽  
Cristelle Mériadec ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Gold Nanoparticles ◽  
Quantum Dot ◽  
Gold Nanoparticle ◽  
Direct Coupling ◽  
Hybrid Nanostructures ◽  
Artificial Proteins ◽  
Self Assembled

Hybrid nanostructures are constructed by the direct coupling of fluorescent quantum dots and plasmonic gold nanoparticles.

A carbon quantum dot–gold nanoparticle system as a probe for the inhibition and reactivation of acetylcholinesterase: detection of pesticides

2019 ◽  
Vol 43 (18) ◽  
pp. 6874-6882 ◽  
Author(s):  
Jyoti Korram ◽  
Lakshita Dewangan ◽  
Rekha Nagwanshi ◽  
Indrapal Karbhal ◽  
Kallol K. Ghosh ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Gold Nanoparticles ◽  
Quantum Dot ◽  
Gold Nanoparticle ◽  
Carbon Quantum Dots ◽  
Carbon Quantum Dot ◽  
Turn On ◽  
Nanoparticle System

In this work, fluorescence (FL) quenching (turn-off) and recovery (turn-on) of carbon quantum dots (CQDs) in the presence of dispersed and aggregated gold nanoparticles (AuNPs) was used as a probe for monitoring the inhibition and reactivation of acetylcholinesterase (AChE).

Heterogeneous structured MoSe2–MoO3 quantum dots with enhanced sodium/potassium storage

2020 ◽  
Vol 8 (44) ◽  
pp. 23395-23403
Author(s):  
Wen Liu ◽  
Jujun Yuan ◽  
Youchen Hao ◽  
Hirbod Maleki Kheimeh Sari ◽  
Jingjing Wang ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Quantum Dot ◽  
Electrochemical Performance ◽  
Heterogeneous Structure ◽  
Sodium Potassium ◽  
Self Assembled ◽  
First Time

A quantum dot-assisted self-assembled MoSe2–MoO3 heterogeneous structure is investigated for sodium/potassium storage for the first time. The quantum dot-assisted self-assembled MoSe2–MoO3 anode possesses a better electrochemical performance.

scholarly journals Synthesis of graphene quantum dot-stabilized gold nanoparticles and their application

RSC Advances ◽  
2019 ◽  
Vol 9 (37) ◽  
pp. 21215-21219 ◽  
Author(s):  
Weifeng Chen ◽  
Jialu Shen ◽  
Shaona Chen ◽  
Jiaying Yan ◽  
Nuonuo Zhang ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Gold Nanoparticles ◽  
Quantum Dot ◽  
Graphene Quantum Dots ◽  
Graphene Quantum Dot

Herein, we report an in situ synthesis of graphene quantum dots (GQDs), which have been synthesized from only starch and water and stabilize AuNPs in water.

Dependence of the band-gap pressure coefficients of self-assembled InAs/GaAs quantum dots on the quantum dot size

2007 ◽  
Vol 244 (1) ◽  
pp. 53-58 ◽  
Author(s):  
C. Kristukat ◽  
A. R. Goñi ◽  
K. Pötschke ◽  
D. Bimberg ◽  
C. Thomsen
Keyword(s):  
Quantum Dots ◽  
Quantum Dot ◽  
Band Gap ◽  
Pressure Coefficients ◽  
Self Assembled

Self-assembled quantum dots, wires and quantum-dot lasers

2001 ◽  
Vol 227-228 ◽  
pp. 1132-1139 ◽  
Author(s):  
Zhan-Guo Wang ◽  
Yong-Hai Chen ◽  
Feng-Qi Liu ◽  
Bop Xu
Keyword(s):  
Quantum Dots ◽  
Quantum Dot ◽  
Quantum Dot Lasers ◽  
Self Assembled

The Strain Status of the Buried Self-assembled InAs quantum dots using MeV technique

2006 ◽  
Vol 916 ◽  
Author(s):  
Hsing-Yeh Wang ◽  
C.H. Chen ◽  
H. Niu ◽  
S.C. Wu ◽  
C.P. Lee
Keyword(s):  
Quantum Dots ◽  
Quantum Dot ◽  
Plane Strain ◽  
Growth Direction ◽  
Lateral Direction ◽  
Inas Quantum Dots ◽  
Self Assembled ◽  
First Time ◽  
Strain Status

AbstractThe strain status of the buried InAs self-assembled quantum dot was comprehended by measurement first time. Results show the in-plane strain is compressive and lattice in the growth direction is lager than the lattice of GaAs. The strain of the sample annealed at 650 degree relaxes in the growth direction. The growth and the lateral direction become relaxed in the sample annealed at 750 degree.

scholarly journals Theoretical study of strain-dependent optical absorption in a doped self-assembled InAs/InGaAs/GaAs/AlGaAs quantum dot

2018 ◽  
Vol 9 ◽  
pp. 1075-1084
Author(s):  
Tarek A Ameen ◽  
Hesameddin Ilatikhameneh ◽  
Archana Tankasala ◽  
Yuling Hsueh ◽  
James Charles ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Optical Absorption ◽  
Quantum Dot ◽  
Mole Fraction ◽  
Theoretical Study ◽  
Energy Gap ◽  
Optical Transition ◽  
Binding Model ◽  
Self Assembled ◽  
Absorption Wavelength

A detailed theoretical study of the optical absorption in doped self-assembled quantum dots is presented. A rigorous atomistic strain model as well as a sophisticated 20-band tight-binding model are used to ensure accurate prediction of the single particle states in these devices. We also show that for doped quantum dots, many-particle configuration interaction is also critical to accurately capture the optical transitions of the system. The sophisticated models presented in this work reproduce the experimental results for both undoped and doped quantum dot systems. The effects of alloy mole fraction of the strain controlling layer and quantum dot dimensions are discussed. Increasing the mole fraction of the strain controlling layer leads to a lower energy gap and a larger absorption wavelength. Surprisingly, the absorption wavelength is highly sensitive to the changes in the diameter, but almost insensitive to the changes in dot height. This behavior is explained by a detailed sensitivity analysis of different factors affecting the optical transition energy.

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