Abstract
Excitation wavelength dependent emission (EWDE) materials have attracted considerable interest in recent years. Nevertheless, few large-size single crystals with EWDE performance have been reported. In this work, we state a triarylborane (QB) functionalized by di-(2-picolyl)-N-(2-quinolinylmethyl)amine, with a Zn(II) complex (QB-Zn). QB showed polymorphs with different luminescent behavior. Interestingly, the QB-Zn complex exhibited excitation-dependent tri-color fluorescence at room temperature. The single crystals of QB-Zn can switch their luminescent color from blue to green to red as the excitation wavelength change from 330 to 510–550 nm. The EWDE mechanism of QB-Zn was investigated in detail by means of photophysical, X-ray single-crystal structural and theoretical calculations studies. The high luminous efficiency and adjustable luminescence switching of QB-Zn crystalline powder and doped hydrogel make them excellent candidates for anti-counterfeiting, optical recording and LED materials.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
