Enabling Highly Robust Full-Color Ultralong Room-Temperature Phosphorescence and Stable White Organic Afterglow from Polycyclic Aromatic Hydrocarbons.
Angew Chem Int Ed Engl
; 63(10): e202318516, 2024 Mar 04.
Article
em En
| MEDLINE
| ID: mdl-38241198
ABSTRACT
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 4.83â
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 0.68â
s at 440â
K. Moreover, the films showed a bright and stable white afterglow at 370â
K with a lifetime of 2.80â
s and maintained an excellent afterglow performance after soaking in water and organic solvents for more than 150â
days. In addition, the application potential of the polymer films in information encryption and anti-counterfeiting was also demonstrated.
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1
Coleções:
01-internacional
Base de dados:
MEDLINE
Idioma:
En
Ano de publicação:
2024
Tipo de documento:
Article