Lanthanide-doped heterostructured nanocomposites toward advanced optical anti-counterfeiting and information storage.

ABSTRACT: The continuously growing importance of information storage, transmission, and authentication impose many new demands and challenges for modern nano-photonic materials and information storage technologies, both in security and storage capacity. Recently, luminescent lanthanide-doped nanomaterials have drawn much attention in this field because of their photostability, multimodal/multicolor/narrowband emissions, and long luminescence lifetime. Here, we report a multimodal nanocomposite composed of lanthanide-doped upconverting nanoparticle and EuSe semiconductor, which was constructed by utilizing a cation exchange strategy. The nanocomposite can emit blue and white light under 365 and 394 nm excitation, respectively. Meanwhile, the nanocomposites show different colors under 980 nm laser exc

SUBMITTER: Xie Y 

PROVIDER: S-EPMC9122995 | biostudies-literature | 2022 May

REPOSITORIES: biostudies-literature