摘要
Lanthanide-doped ultrasmall nanoparticles(NPs)are attractive for diverse applications because of their unique optical properties compared with their bulk materials;their practical use,however,is greatly limited by extremely weak photoluminescence(PL)associated with severe surface quenching.Herein,we demonstrate an effective strategy to activate surface dark emitters of Eu3+in ultrasmall Sc_(2)O_(3).
基金
support by the Strategic Priority Research Program of the Chinese Academy of Sciences(no.XDB20000000)
the National Natural Science Foundation of China(nos.21871256 and 21731006)
the Key Research Program of Frontier Sciences of the Chinese Academy of Sciences(no.QYZDY-SSWSLH025)
the Youth Innovation Promotion Association of the Chinese Academy of Sciences(no.Y201747)
the China Postdoctoral Science Foundation(no.2020T130652).
