Time-resolved fluorescence decay and Gaussian analysis of P3HT-derived $$\hbox {Ho}^{3+}$$- and $$\hbox {Tm}^{3+}$$-doped ZnO nanostructures

Unveiling Semiconductor Nanostructured Based Holmium-Doped ZnO: Structural, Luminescent and Room Temperature Ferromagnetic Properties

“…The synthesis was conducted using zinc acetate (Zn(CH 3 COO) 2 ·2H 2 O), sodium hydroxide (NaOH) and holmium nitrate pentahydrate (Ho(NO 3 ) 3 ·5H 2 O), which were all purchased from Sigma-Aldrich (Kempton Park, Gauteng, South Africa) and used as received. ZnO:Ho 3+ nanocrystals were synthesized by a sol–gel method following the same procedure as reported in our previous works [ 22 , 23 , 24 ]. The solution of sodium hydroxide dissolved in ethanol was prepared separately, then cooled in ice water and added dropwise judiciously to the ethanol solution of Zn 2+ ions.…”