Investigation of upconversion and downconversion fluorescence emissions from β-NaLn1F4:Yb3+, Ln23+ (Ln1=Y, Lu; Ln2=Er, Ho, Tm, Eu) hexagonal disk system
Titel:
Investigation of upconversion and downconversion fluorescence emissions from β-NaLn1F4:Yb3+, Ln23+ (Ln1=Y, Lu; Ln2=Er, Ho, Tm, Eu) hexagonal disk system