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Photoluminescence: Applications

Photoluminescence: Applications

Photoluminescence offers a wide range of applications due to its inherent sensitivity and selectivity. This technique allows for both direct and indirect analyses of the analyte. Direct quantitative analysis is possible when the analyte exhibits a favorable quantum yield for fluorescence or phosphorescence. However, an indirect analysis may be feasible if the analyte is not fluorescent or phosphorescent, or if the quantum yield is unfavorable. Indirect methods include reacting the analyte with...

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Related Experiment Video

Updated: May 9, 2026

Resonance Fluorescence of an InGaAs Quantum Dot in a Planar Cavity Using Orthogonal Excitation and Detection

Resonance Fluorescence of an InGaAs Quantum Dot in a Planar Cavity Using Orthogonal Excitation and Detection

Published on: October 13, 2017

Switching CdSe quantum dot luminescence with a-Si:H.

M Di Vece¹, S N F van Duren, D J van den Heuvel

¹Debye Institute for Nanomaterials Science, Nanophotonics-Physics of Devices, Utrecht University, Utrecht, The Netherlands. m.divece@uu.nl

|July 16, 2013

Summary

This study demonstrates dynamic control of cadmium selenide (CdSe) quantum dot luminescence in an amorphous silicon (a-Si:H) solar cell. Applying a positive potential enables rapid optical switching, paving the way for new quantum dot devices.

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Compact Quantum Dots for Single-molecule Imaging

Compact Quantum Dots for Single-molecule Imaging

Published on: October 9, 2012

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Last Updated: May 9, 2026

Resonance Fluorescence of an InGaAs Quantum Dot in a Planar Cavity Using Orthogonal Excitation and Detection

Resonance Fluorescence of an InGaAs Quantum Dot in a Planar Cavity Using Orthogonal Excitation and Detection

Published on: October 13, 2017

Enhanced Electron Injection and Exciton Confinement for Pure Blue Quantum-Dot Light-Emitting Diodes by Introducing Partially Oxidized Aluminum Cathode

Enhanced Electron Injection and Exciton Confinement for Pure Blue Quantum-Dot Light-Emitting Diodes by Introducing Partially Oxidized Aluminum Cathode

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Compact Quantum Dots for Single-molecule Imaging

Compact Quantum Dots for Single-molecule Imaging

Published on: October 9, 2012

Area of Science:

Materials Science
Nanotechnology
Optoelectronics

Background:

Quantum dots (QDs) offer tunable optical properties crucial for advanced technologies.
Controlling QD luminescence dynamically is essential for applications in telecommunication, displays, and photovoltaics.

Purpose of the Study:

To investigate the dynamical control of luminescence in cadmium selenide (CdSe) quantum dots within an amorphous silicon (a-Si:H) solar cell structure.
To explore the potential of QD-based devices for optical switching applications.

Main Methods:

Fabrication of a device integrating CdSe quantum dots within an a-Si:H solar cell.
Application of a positive electrical potential to modulate charge carrier transport and luminescence.
Measurement of luminescence intensity changes and switching times.

Main Results:

Successful integration of CdSe quantum dots into an a-Si:H solar cell.
Demonstration of dynamic luminescence control via electrical potential.
Achieved switching times below 60 milliseconds for luminescence modulation.

Conclusions:

The developed device shows promising capabilities for optical switching applications.
Electrical control of QD luminescence in a solar cell architecture represents a significant advancement.
This work highlights the potential of QDs in next-generation optoelectronic devices.