Figure 3From: Near-infrared quantum cutting in Ho3+, Yb3+-codoped BaGdF5 nanoparticles via first-and second-order energy transfersPLE and PL spectra monitoring of the Yb3+emission. (a) PLE spectra monitoring of the Yb3+: 2 F5/2 → 2 F7/2 emission and (b) PL spectra in the infrared region under excitation of 450 nm (5I8 → 5 G6, 5 F1) of BaGdF5: 1% Ho3+, x% Yb3+ (0 ≤ x ≤ 20) nanoparticles.Back to article page