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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...

Photoluminescence: Fluorescence and Phosphorescence

Photoluminescence: Fluorescence and Phosphorescence

Photoluminescence is a process where a molecule absorbs light energy and re-emits it in the form of light. This phenomenon occurs when a substance absorbs photons, promoting its electrons to higher energy level excited states, followed by a relaxation process in which the electrons return to their original ground state energy levels and emit light. Photoluminescence is widely observed in various materials, including semiconductors, and organic and inorganic compounds.
A pair of electrons in a...

Variables Affecting Phosphorescence and Fluorescence

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Fluorescence and phosphorescence are essential phenomena in fields like analytical chemistry, biological imaging, and materials science, where they detect molecular properties and visualize cellular structures. Understanding the variables that influence these luminescent behaviors is crucial for maximizing accuracy and efficiency in their applications. These variables can broadly be grouped into chemical structure, solvent properties, and external conditions, each playing a distinct role in...

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Updated: Mar 19, 2026

Low-energy Cathodoluminescence for OxyNitride Phosphors

Low-energy Cathodoluminescence for OxyNitride Phosphors

Published on: November 15, 2016

Recent developments in the new inorganic solid-state LED phosphors.

Zhiguo Xia¹, Zihan Xu, Mingyue Chen

¹The Beijing Municipal Key Laboratory of New Energy Materials and Technologies, School of Materials Sciences and Engineering, University of Science and Technology Beijing, Beijing 100083, China. xiazg@ustb.edu.cn.

Dalton Transactions (Cambridge, England : 2003)

|June 16, 2016

Summary

This summary is machine-generated.

Developing stable, efficient inorganic phosphors is crucial for advanced solid-state lighting. This review covers phosphor strategies, new materials, discovery methods, and future directions for white light-emitting diodes (LEDs).

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Last Updated: Mar 19, 2026

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Area of Science:

Materials Science
Solid-State Lighting
Photoluminescence

Background:

White light-emitting diodes (LEDs) require advanced phosphor systems for efficient solid-state lighting.
Inorganic phosphors are critical for overcoming limitations of traditional lighting technologies.
Precise selection and evaluation of phosphor material properties and optical parameters are essential.

Purpose of the Study:

To provide an overview of recent developments in LED phosphors.
To evaluate photoluminescence-controlling strategies for LED applications.
To discuss methodologies for discovering new LED phosphors.

Main Methods:

Evaluation of photoluminescence-controlling strategies.
Demonstration of state-of-the-art and emerging LED phosphors.
Analysis of discovery methodologies: mineral-inspired evolution, new phase construction, combinatorial screening, and single-particle diagnosis.

Main Results:

Recent advancements in LED phosphor development are presented.
Various strategies for tailoring phosphor photoluminescence for LEDs are discussed.
Novel methods for discovering new phosphors are analyzed and exemplified.

Conclusions:

Future developments in LED phosphors are proposed based on current trends and methodologies.
The importance of material properties and optical parameters for phosphor performance is highlighted.
Continued research into novel phosphors and discovery techniques is vital for next-generation solid-state lighting.