Enabling Highly Robust Full‐Color Ultralong Room‐Temperature Phosphorescence and Stable White Organic Afterglow from Polycyclic Aromatic Hydrocarbons

In this work, full‐color and stable white organic afterglow materials with outstanding water, organic solvents, and temperature resistances have been developed for the first time by embedding the selected polycyclic aromatic hydrocarbons into melamine‐formaldehyde polymer via solution polymerization...

Full description

Saved in:
Bibliographic Details
Published in:Angewandte Chemie International Edition 2024-03, Vol.63 (10), p.e202318516-n/a
Main Authors: Liang, Yaohui, Hu, Pengtao, Zhang, Huaqing, Yang, Qingchen, Wei, Hengshan, Chen, Ruitai, Yu, Jiahai, Liu, Cong, Wang, Yuhai, Luo, Suilian, Shi, Guang, Chi, Zhenguo, Xu, Bingjia
Format: Article
Language:English
Subjects:
afterglow
Afterglows
Color
doped polymer film
Embedding
Melamine
Organic solvents
Phosphorescence
polycyclic aromatic hydrocarbon
Polycyclic aromatic hydrocarbons
Polymer films
Polymers
Solution polymerization
Solvents
thermally activated delayed fluorescence
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:In this work, full‐color and stable white organic afterglow materials with outstanding water, organic solvents, and temperature resistances have been developed for the first time by embedding the selected polycyclic aromatic hydrocarbons into melamine‐formaldehyde polymer via solution polymerization. The afterglow quantum yields and lifetimes of the resulting polymer films were up to 22.7 % and 4.83 s, respectively, under ambient conditions. For the coronene‐doped sample, its afterglow color could be linearly tuned between yellow and blue by adjusting the temperature, and it could still emit an intense blue afterglow with a lifetime of 0.68 s at 440 K. Moreover, the films showed a bright and stable white afterglow at 370 K with a lifetime of 2.80 s and maintained an excellent afterglow performance after soaking in water and organic solvents for more than 150 days. In addition, the application potential of the polymer films in information encryption and anti‐counterfeiting was also demonstrated. Full‐color and stable white organic afterglow materials have been developed by embedding the selected polycyclic aromatic hydrocarbons into a melamine‐formaldehyde polymer by solution polymerization. Their afterglow quantum yields and lifetimes were up to 22.7 % and 4.83 s, respectively. Moreover, the resulting polymer films showed a color‐tunable dual‐mode organic afterglow and outstanding water, organic solvents, and temperature resistances.
ISSN:1433-7851
1521-3773
DOI:10.1002/anie.202318516