Tunable Fluorescence and Afterglow in Organic Crystals for Temperature Sensing

Autor: Jian-Xin Wang, Ling-Ya Peng, Zheng-Fei Liu, Xin Zhu, Li-Ya Niu, Ganglong Cui, Qing-Zheng Yang
Rok vydání: 2022
Předmět:
Zdroj: The Journal of Physical Chemistry Letters. 13:1985-1990
ISSN: 1948-7185
DOI: 10.1021/acs.jpclett.2c00168
Popis: The modulation of the properties of emission from multiple emission states in a single-component organic luminescent material is highly desirable in data anticounterfeiting, information storage, and bioapplications. Here, a single-component luminescent organic crystal of difluoroboron diphenyl β-diketonate with controllable multiple emission colors is successfully reported. The temperature-dependent luminescence experiments supported by high-level theoretical calculations demonstrate that the ratio of the fluorescence between the monomer and excimer and the phosphorescence maxima of the excimer can be effectively regulated. In addition, the temperature-dependent fluorescence and afterglow dual-emission color changes provide a new strategy for the design of highly accurate double-checked temperature sensors.
Databáze: OpenAIRE