Photo-responsive color/fluorescence efficient dual-switching properties of diarylethene modified Eu-doped ZnO@Silane
Hengju Zhou1, Xinhuan Ma1, Jiayu Fu1
1Jiangxi Provincial Key Laboratory of Organic Functional Molecules, Institute of Organic Chemistry, Jiangxi Science and Technology Normal University, Nanchang 330013, PR China.
Abstract:
Photo-responsive switches are very promising materials due to their potential applications in many fields. However, photo-controlled color/fluorescence dual-switching with higher modulation efficiency has rarely been reported. Herein, two new optical responsive switches were constructed by Eu-doped ZnO@Silane quantum dots (Eu:ZnO@Silane QDs) and two diarylethenes. The two switches exhibited strong fluorescence intensity and excellent photochromic properties due to the doping of Eu and the diarylethene modification on the surface of the QDs. The switches showed outstanding photo-controlled color/fluorescence dual-switching performance with UV/Vis lights irradiation. Although the structure of the two diarylethenes affected the fatigue resistance of the two switches, their fluorescence modulation efficiency (FME) could reach 100%. Furthermore, the two switches were successfully applied to bioimaging, and provide an alternative way for the design and construction of novel efficient color/fluorescence dual-switching.
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