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Related Experiment Video

Updated: Jul 12, 2026

Hyperspectral Imaging as a Tool to Study Optical Anisotropy in Lanthanide-Based Molecular Single Crystals
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Published on: April 14, 2020

Tunable Broad Wavelength Emissions in Sn2+-Doped Zero-Dimensional All Inorganic K4CdCl6 via Rb+ Alloying.

Yanjiao Zhang1,2, Pifu Gong3, Mingxing Chen4

  • 1College of Petrochemical Engineering, Jilin University of Chemical Technology, Jilin 132022, China.

Inorganic Chemistry
|July 10, 2026
PubMed
Summary

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Researchers achieved tunable yellow-to-blue light emission in K4CdCl6 halide materials using Rb/Sn codoping. This breakthrough enables advanced optical anticounterfeiting and digital encryption devices.

Area of Science:

  • Materials Science
  • Solid-State Chemistry
  • Optoelectronics

Background:

  • Tunable fluorescence is crucial for optoelectronics and information security.
  • Metal halide materials offer potential for luminescent applications.

Purpose of the Study:

  • To achieve broad-wavelength photoluminescence (PL) tuning in zero-dimensional (0D) K4CdCl6 halide.
  • To develop a facile ion doping strategy for luminescence modulation.
  • To explore applications in optical anticounterfeiting and digital encryption.

Main Methods:

  • Utilizing a Rb/Sn codoping strategy in K4CdCl6.
  • Investigating photoluminescence (PL) properties.
  • Employing density functional theory (DFT) calculations.

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Last Updated: Jul 12, 2026

Hyperspectral Imaging as a Tool to Study Optical Anisotropy in Lanthanide-Based Molecular Single Crystals
07:24

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Published on: April 14, 2020

Phase-Dependent Control of Trap Depth and Persistent Luminescence in Strontium Aluminate Phosphors
06:16

Phase-Dependent Control of Trap Depth and Persistent Luminescence in Strontium Aluminate Phosphors

Published on: December 5, 2025

Low-energy Cathodoluminescence for (Oxy)Nitride Phosphors
07:03

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Main Results:

  • Achieved continuous PL tuning from yellow to white to blue in K4CdCl6:Sn2+ via Rb+ alloying.
  • Sn2+ doping introduced impurity energy levels, enhancing PL emission.
  • Successfully developed three-level color-coded intelligent password devices.

Conclusions:

  • A reliable ion doping strategy for luminescence modulation in metal halides was developed.
  • The tunable luminescent system shows promise for advanced optoelectronic applications, including anticounterfeiting and encryption.