If the population of 4 I 11/2 gained via ET1 process is partially contributed to Yb 3+ via ET2 process and partially contributed to 4 I 13/2 via radiative transition and nonradiative relaxation from 4 I 11/2 , then the infrared emission of 4 I 13/2 → 4 I 15/2 transition will also show an increasing trend when Yb 3+ concentration increases.
← all excerpts
Near infrared emissions from both high efficient quantum cutting (173%) and nearly-pure-color upconversion in NaY(WO<sub>4</sub>)<sub>2</sub>:Er<sup>3+</sup>/Yb<sup>3+</sup> with thermal management capability for silicon-based solar cells.
1
—
—