Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

Quantum Numbers

Quantum Numbers

It is said that the energy of an electron in an atom is quantized; that is, it can be equal only to certain specific values and can jump from one energy level to another but not transition smoothly or stay between these levels.

The Quantum-Mechanical Model of an Atom

The Quantum-Mechanical Model of an Atom

Shortly after de Broglie published his ideas that the electron in a hydrogen atom could be better thought of as being a circular standing wave instead of a particle moving in quantized circular orbits, Erwin Schrödinger extended de Broglie’s work by deriving what is now known as the Schrödinger equation. When Schrödinger applied his equation to hydrogen-like atoms, he was able to reproduce Bohr’s expression for the energy and, thus, the Rydberg formula governing hydrogen spectra.

Hybrid Zones

Hybrid Zones

Hybrid zones are narrow regions where two closely related species interact, mate, and produce hybrids. Relative to either parent species, hybrids may possess distinct phenotypic or genetic differences that impact their survival and reproductive success. The genetic variances introduced by hybridization influence species diversity and speciation processes within the hybrid zone.

The Dot Product

The Dot Product

Measuring how one directional quantity affects another along a specific path involves comparing their orientation and strength. When two such quantities are represented using direction and amount, a numerical result is computed to show how much one acts along the path of the other. This result comes from a rule combining both inputs' horizontal and vertical parts and adding the results.This calculation gives a single value that grows larger when both inputs point in similar directions and...

Dot Product

Dot Product

The dot product is an essential concept in mathematics and physics.
In engineering, the dot product of any two vectors is the product of the magnitudes of the vectors and the cosine of the angle between them. It is denoted by a dot symbol between the two vectors.
Consider a vehicle pulling an object along the ground using a rope. If the rope makes an angle with the horizontal axis, the work done can be calculated using the dot product of the force applied and the object's displacement.
The dot...

Hybridization of Atomic Orbitals I

Hybridization of Atomic Orbitals I

The mathematical expression known as the wave function, ψ, contains information about each orbital and the wavelike properties of electrons in an isolated atom. When atoms are bound together in a molecule, the wave functions combine to produce new mathematical descriptions that have different shapes. This process of combining the wave functions for atomic orbitals is called hybridization and is mathematically accomplished by the linear combination of atomic orbitals. The new orbitals that...

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by

Same author

Turning sound and force into light with AlN:Mn<sup>2+</sup> mechanoluminescence.

Science advances·2026

Same author

Photocurrent Saturation Mechanisms in Colloidal Quantum Dot Photodetectors.

Nano letters·2026

Same author

Mid-Infrared Stimulated Emission from Bulk Lead Sulfide Nanocrystals Formed by Aggregative Growth.

ACS nano·2026

Same author

Vanishing Quantum Confinement Enables Bright and Thermally Excited Multicarrier Emission from Semiconductor Nanocrystals.

ACS nano·2026

Same author

Photoquenching-by-Photocharging: A Single Process of Failure of Oxygen-Exposed InP/ZnSe Quantum Dots.

ACS nano·2026

Same author

Bound Exciton Complexes in Near-Infrared Emitting Quantum Shells.

ACS nano·2026

Search research articles

Related Experiment Video

Updated: Feb 5, 2026

Production and Targeting of Monovalent Quantum Dots

Production and Targeting of Monovalent Quantum Dots

Published on: October 23, 2014

Hybrid remote quantum dot/powder phosphor designs for display backlights.

Sofie Abe^1,2,3, Jonas J Joos^2,3, Lisa Idj Martin^2,3

¹Department of Inorganic and Physical Chemistry, Ghent University, Gent, Belgium.

Light, Science & Applications

|September 1, 2018

Summary

This study shows that combining phosphors with quantum dots (QDs) in displays improves efficiency. The hybrid approach is beneficial when light reabsorption is significant, optimizing cost and performance.

Keywords:

cost-efficiency lanthanide light emitting diode nanocrystal remote phosphor

More Related Videos

Absolute Quantum Yield Measurement of Powder Samples

Absolute Quantum Yield Measurement of Powder Samples

Published on: May 12, 2012

Compact Quantum Dots for Single-molecule Imaging

Compact Quantum Dots for Single-molecule Imaging

Published on: October 9, 2012

Related Experiment Videos

Last Updated: Feb 5, 2026

Production and Targeting of Monovalent Quantum Dots

Production and Targeting of Monovalent Quantum Dots

Published on: October 23, 2014

Absolute Quantum Yield Measurement of Powder Samples

Absolute Quantum Yield Measurement of Powder Samples

Published on: May 12, 2012

Compact Quantum Dots for Single-molecule Imaging

Compact Quantum Dots for Single-molecule Imaging

Published on: October 9, 2012

Area of Science:

Materials Science
Optoelectronics
Nanotechnology

Background:

Quantum dots (QDs) offer tunable emission, high efficiency, and narrow bands, making them ideal for light-emitting diode (LED) color conversion.
Their saturated colors are valuable for display backlights, despite higher production costs.

Purpose of the Study:

To evaluate a hybrid remote phosphor approach using europium-doped phosphors and CdSe/CdS core/shell quantum dots for LED color conversion.
To identify optimal stacking geometries for maximizing device efficiency and minimizing material usage.
To provide guidelines for cost-effective and efficient QD-based color conversion systems.

Main Methods:

Investigated different macroscopic and microscopic stacking geometries of phosphors and quantum dots.
Analyzed the impact of reabsorption, optical outcoupling, and refractive index matching on device performance.
Evaluated cost-efficiency trade-offs for various configurations.

Main Results:

The hybrid remote phosphor approach demonstrates significant benefits, particularly when light reabsorption is a key factor.
Optimal configurations were identified to balance high device efficiency with reduced material consumption.
Specific guidelines were derived for optimizing both cost and efficiency in QD-based systems.

Conclusions:

Hybrid remote phosphor systems combining phosphors and quantum dots offer a viable path for advanced LED color conversion.
Understanding and mitigating reabsorption is crucial for maximizing the efficiency of these hybrid systems.
The findings support the development of cost-effective and high-performance displays utilizing quantum dot technology.