Synthesis of NaYF4:Yb,Er/AgInS2 nanoheterostructures

Multicomponent nanoheterostructure containing upconverting materials and semiconductor nanocrystals have been a growing interest in recent years. An interaction between these com-ponents can improve the existing and induce new materials and electronic properties. Here, we reported the synthesis of new nanoheterostructure consisting of NaYF4:Yb,Er decorated with AgInS2 nanocrystal via a thermal decomposition reaction. The NaYF4:Yb,Er were used as seed crystal of the synthesis of NaYF4:Yb,Er/AgInS2 nanoheterostructure. The results of combine upconverting and semiconducting materials indicate that the NaYF4:Yb,Er/AgInS2 nano-heterostructure shows photoactivity under NIR irradiation. Compared with pure AgInS2 nano -crystal, the nanoheterostructure of NaYF4:Yb,Er/AgInS2 exhibits a strong light absorption characteristics in visible region, which more effective than that of pure AgInS2 nanocrystal.

Automated summary

Multicomponent nanoheterostructures that combine upconverting materials and semiconductor nanocrystals have gained increasing interest in recent years. The interaction between these components can improve the properties of existing materials and induce new materials with enhanced electronic properties. In this study, a new nanoheterostructure composed of NaYF4:Yb,Er decorated with AgInS2 nanocrystals was synthesized via a thermal decomposition reaction. The combination of upconverting and semiconducting materials in the NaYF4:Yb,Er/AgInS2 nanoheterostructure exhibited photoactivity under NIR irradiation. Compared to pure AgInS2 nanocrystals, the NaYF4:Yb,Er/AgInS2 nanoheterostructure showed stronger light absorption characteristics in the visible region.