Related Experiment Video
Updated: Sep 8, 2025

Time-resolved Photophysical Characterization of Triplet-harvesting Organic Compounds at an Oxygen-free Environment Using an iCCD Camera
Published on: December 27, 2018
Zero-Dimensional Zn-Based Halides with Ultra-Long Room-Temperature Phosphorescence for Time-Resolved
Jun-Hua Wei1, Wei-Tao Ou1, Jian-Bin Luo1
1MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, Lehn Institute of Functional Materials, School of Chemistry, Sun Yat-sen University, Guangzhou, 510275, P. R. China.
This study introduces a new anti-counterfeiting system using organic-inorganic hybrid halides with tunable room-temperature phosphorescence (RTP). This spatial-time dual-resolved technology enhances security and portability for advanced anti-counterfeiting applications.
Area of Science:
- Materials Science
- Chemistry
- Optics
Background:
- Fluorescence-tag anti-counterfeiting offers cost-effectiveness and high data capacity.
- Current spatial-resolved methods lack the high security needed for advanced applications due to clonable decryption.
Purpose of the Study:
- To develop a spatial-time dual-resolved anti-counterfeiting system.
- To utilize organic-inorganic hybrid halides with ultra-long room-temperature phosphorescence (RTP).
Main Methods:
- Synthesized novel organic-inorganic hybrid halides: BAPPZn2(ClyBr1-y)8.
- Investigated ultra-long room-temperature phosphorescence (RTP) properties.
- Tuned afterglow lifetime via halide-induced heavy-atom effect.
Main Results:
- Achieved tunable ultra-long room-temperature phosphorescence (RTP) in BAPPZn2(ClyBr1-y)8.
- Demonstrated facile tuning of afterglow lifetime by adjusting halide composition.
- Verified identification via naked eye or simple machine vision.
Conclusions:
- The developed system enables unicolor-time-resolved anti-counterfeiting.
- Reduced requirements for decryption devices, enhancing portability.
- Provides a design strategy for advanced portable anti-counterfeiting technology.
More Related Videos
Related Concept Videos
Photoluminescence: Applications
Variables Affecting Phosphorescence and Fluorescence
Fluorescence and Phosphorescence: Instrumentation
Photoluminescence: Fluorescence and Phosphorescence
A pair of electrons in a...

