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Low-energy Cathodoluminescence for OxyNitride Phosphors

Low-energy Cathodoluminescence for OxyNitride Phosphors

Published on: November 15, 2016

Highly efficient room-temperature phosphorescence achieved by gadolinium complexes.

Boxun Sun¹, Chen Wei¹, Huibo Wei²

¹College of Chemistry and Molecular Engineering, Peking University, 202 Chengfu Road, Beijing 100871, P. R. China. bianzq@pku.edu.cn c.wei@pku.edu.cn.

Dalton Transactions (Cambridge, England : 2003)

|September 24, 2019

Summary

This summary is machine-generated.

New gadolinium complexes exhibit room-temperature phosphorescence, emitting light for microseconds in colors from blue to orange. These materials achieve high photoluminescence quantum yields due to optimized structures and encapsulation.

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Area of Science:

Materials Science
Inorganic Chemistry
Photophysics

Background:

Room temperature phosphorescence (RTP) is crucial for advanced optical applications.
Developing efficient RTP materials that operate without cryogenic cooling remains a significant challenge.
Gadolinium complexes offer potential for novel luminescent properties.

Purpose of the Study:

To report a new family of room temperature phosphorescent materials.
To investigate the phosphorescence properties of gadolinium complexes.
To achieve efficient and tunable emission from blue to orange.

Main Methods:

Synthesis of novel gadolinium complexes.
Characterization of molecular structures and encapsulation methods.
Photoluminescence spectroscopy to determine emission properties and quantum yields.

Main Results:

Successful fabrication of room temperature phosphorescent gadolinium complexes.
Observed emission lifetimes in the microsecond range.
Achieved tunable emission colors from blue to orange.
Maximum photoluminescence quantum yield reached 66%.

Conclusions:

The developed gadolinium complexes represent a new class of RTP materials.
Molecular design and encapsulation are key factors for achieving high-performance RTP.
These materials hold promise for applications in lighting, sensing, and bio-imaging.