Highly efficient, red-emissive carbon quantum dots (R-CQDs) with a quantum yield of 53% are prepared and a CQD-phosphors-based warm white-light-emitting diode (WLED) is realized for the first time.
Results for "quantum dot"
Improving Avalanche Photodiodes – Quantum Dots do the Trick
An avalanche photodiode design with a quantum dot multiplication structure attains a high maximum gain factor and a superior gain noise performance.
One-Pot Solvothermal Synthesis of Graphene Oxide Quantum Dots
A facile one-pot solvothermal method that allows selective synthesis of pure graphene oxide (GO) and pure GO quantum dots.
Carbon Quantum Dots with Distinct Optical Properties
The first synthesis and demonstration of multicolor bandgap fluorescent CQDs (MCBF-CQDs) is reported.
The Effect of Doping on the Photocatalytic Activity of Graphene Quantum Dots
A new strategy to produce heteroatoms-doped GQDs as photocatalysts with control over heteroatom types, constitution and content.
Plasmonics Enhances Electroluminescence in Quantum Dot LEDs
The addition of plasmonic silver nanostructures has enhanced the external quantum efficiency of this QLED device by 46%.
Color-controlled perovskite quantum dots
New research published in Advanced Science by a team of Chinese researchers presents the control of the emission color of CH3NH3PbBr3 perovskite quantum dots using precipitation temperature.
Hybrid graphene–giant nanocrystal quantum dot assemblies
New work shows that new class of nanocrystals coupled to graphene causes bi-excitons to experience recombination and simultaneous emission of photon pairs.
Investigating quantum dot photoluminescence
Researchers have observed drastic shifts in the photoluminescence emission spectra of quantum dots.
Imaging with non-toxic quantum dots
North American researchers have prepared luminescent core-shell nanoparticles from non-toxic silicon for use in biomedical imaging.
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