期刊
ACS APPLIED MATERIALS & INTERFACES
卷 9, 期 10, 页码 8910-8918出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsami.7b00195
关键词
single crystal; optical waveguide; mechanochromism; hydrostatic pressure; aggregation-induced emission
资金
- National Natural Science Foundation of China [21174005, 21274004]
- Natural Science Foundation of Hebei Province [B2016402030]
A novel single crystal, PyB, is produced in a high yield by the simple method of connecting a pyrene unit and a rhodamine B moiety together. PyB shows multiple functions of aggregation-induced emission, low-loss optical waveguiding, and tricolored mechanochromism. The crucial point for fabricating such a multifunctional single crystal is selecting the C=N group as a spacer, which simplifies the synthetic procedure, confines the molecular conformation to develop single crystals, and allows one to dynamically observe the color variation in situ and quantitatively analyze the effect of applied pressures. Such a simple approach may be extended to other fluorophores, thus providing a new opportunity for the real world application of mechanochromic materials for mechanical sensors, optical encoding, and optoelectronic devices, etc.
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