Temperature-dependent luminescence of boron difluoride β-diketonates. Formation and dissociation of J-aggregates

被引：2
作者：
Mirochnik, A. G. [1 ]
Fedorenko, E. V. [1 ]
机构：
[1] Russian Acad Sci, Inst Chem, Far Eastern Branch, 159 Prosp100 Letiya Vladivostoka, Vladivostok 690022, Russia
来源：
RUSSIAN CHEMICAL BULLETIN | 2023年 / 72卷 / 01期
关键词：
boron difluoride beta-diketonates; luminescence; excimer; J-aggregates; thermochromism; CRYSTAL-STRUCTURE; SOLID-STATE; THERMOCHROMISM; FLUORESCENCE;
D O I：
10.1007/s11172-023-3727-z
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Temperature-dependent luminescence of polymer compositions doped with boron difluoride beta-diketonates was revealed. At room temperature, the samples are characterized by yellow-green luminescence, which turns blue on heating. The mechanism of the temperature-dependent luminescence consists in the dissociation of J-aggregates of dyes on heating. The dissociation of J-aggregates is reversible. The luminescent polymer compositions studied are promising for the development of temperature sensors.
引用
收藏
页码：223 / 232
页数：10
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