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Fluorescent Quantum Dots and Its Composites for Highly Sensitive Detection of Heavy Metal Ions and Pesticide Residues: A Review

open access: yesChemosensors, 2023
Quantum dots nanomaterials have attracted extensive interest for fluorescence chemical sensors due their attributes, such as excellent optical characteristics, quantum size effects, interface effects, etc. Moreover, the fluorescence properties of quantum
Zhezhe Wang   +4 more
doaj   +1 more source

Size and Shape Effects of Silicon Quantum Dot Cohesive Energy

open access: yesTaiyuan Ligong Daxue xuebao, 2023
Purposes It aims to analyze the effect of the size and shape of silicon quantum dots on their binding energy. Methods The cohesive energy of silicon quantum dots with different sizes and shapes is calculated by using the method of density functional ...
Xiangsen LUAN, Xiaoli YAN, Hui LI
doaj   +1 more source

Optimization of quantum dots for solar cell applications [PDF]

open access: yesSongklanakarin Journal of Science and Technology (SJST), 2021
The quantum dots-sensitized solar cells (QDSSC) provide an alternative concept to present day photovoltaic devices. Cadmium sulfide/Zinc sulfide-sensitized solar cells have been synthesized by chemical bath deposition, based on an aqueous medium ...
Lekshmi Gangadhar, P. K Praseetha
doaj   +1 more source

Quantum Dots in Graphene [PDF]

open access: yesPhysical Review Letters, 2007
4 pages, 3 ...
Silvestrov, P. G., Efetov, K. B.
openaire   +3 more sources

Carbon Quantum Dots Derived from Different Carbon Sources for Antibacterial Applications

open access: yesAntibiotics, 2021
Nanoparticles possess unique features due to their small size and can be composed of different surface chemistries. Carbon quantum dots possess several unique physico-chemical and antibacterial activities.
Yanyan Wu   +4 more
doaj   +1 more source

Optical Gain of Vertically Coupled Cd0.6Zn0.4Te/ZnTe Quantum Dots

open access: yesNanomaterials, 2023
The optical modal gain of Cd0.6Zn0.4Te/ZnTe double quantum dots was measured using a variable stripe length method, where large and small quantum dots are separated with a ZnTe layer.
Ming Mei   +6 more
doaj   +1 more source

Quantum computation with quantum dots [PDF]

open access: yesPhysical Review A, 1998
We propose a new implementation of a universal set of one- and two-qubit gates for quantum computation using the spin states of coupled single-electron quantum dots. Desired operations are effected by the gating of the tunneling barrier between neighboring dots.
Loss, D., DiVincenzo, D. P.
openaire   +3 more sources

Investigation of the temperature and precursors concentration dependence of the formation of ZnSe quantum dots

open access: yesEurasian Journal of Physics and Functional Materials, 2022
Various variations of the synthesis of ZnSe quantum dots are investigated. The influence of temperature, the concentration of precursors and the time of synthesis of quantum dots was taken into account.
B.A. Duisenbay   +7 more
doaj   +1 more source

Efficient Quantum Dot−Quantum Dot and Quantum Dot−Dye Energy Transfer in Biotemplated Assemblies [PDF]

open access: yesACS Nano, 2011
CdSe semiconductor nanocrystal quantum dots are assembled into nanowire-like arrays employing microtubule fibers as nanoscale molecular "scaffolds." Spectrally and time-resolved energy-transfer analysis is used to assess the assembly of the nanoparticles into the hybrid inorganic biomolecular structure. Specifically, we demonstrate that a comprehensive
Marc, Achermann   +4 more
openaire   +2 more sources

Thermal tolerance of perovskite quantum dots dependent on A-site cation and surface ligand

open access: yesNature Communications, 2023
A detailed picture of temperature dependent behavior of CsxFA1-xPbI3 perovskite quantum dots across the composition range is constructed by performing in situ optical spectroscopic and structural measurements, supported by theoretical calculations that ...
Shuo Wang   +8 more
doaj   +1 more source

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