Broadband spectral modification from visible light to near-infrared radiation using Ce3+–Er3+ codoped yttrium aluminium garnet

Energy transfer and enhanced 1532 nm emission in Er3+ and Ce3+ co-doped Y3Al5O12 nano-particles

“…10, it is noted that Er 3þ : 4 I 9/2 / 4 I 15/2 transition at about 860 nm and 4 I 11/2 / 4 I 15/2 at about 964 nm greatly deduced in the co-doped YAG:Ce, Er nano-particle when excited by the excitation of Ce 3þ band at 460 nm, which is the result of crossrelaxation process Er 3þ : 4 I 11/2 ; Ce 3þ : 2 F 5/2 / Er 3þ : 4 I 13/2 ; Ce 3þ : 2 F 7/2 . Similar process has been observed in Er 3þ , Ce 3þ co-doped materials [26,29,30].…”

Near-infrared long persistent luminescence of Er3+ in garnet for the third bio-imaging window

“…Thus, the efficiency can be estimated to be B64% indicating that not only in YAG, 43,44 but also in the YAGG host, efficient ET can occur from Ce 3+ to Er 3+ (although energy transfer between Cr 3+ and Er 3+ also occurs, to simplify the mechanism in this paper, Cr 3+ is assumed to act only as an electron trap due to its very low doping concentration). The PersL spectra of the YAGG:Er-Ce-Cr sample recorded at different times after ceasing blue light illumination are shown in Fig.…”

Modelling and Measurements of Normal and Lateral Stiffness for Atomic Force Microscopy

“…They found that as-synthesized products (drying at with polyethylene glycol or citric acid with ethylene glycol) are added [86][87][88][89][90]. pH of the solutions has to be controlled at acidic condition.…”