Research Article

Luminance Conversion Property of Er and Yb Doped KZnF3 Nanocrystal Synthesized by Hydrothermal Method

Table 2

Sequential two-photon exciting upconversion transition channels for Er3+ doped or Er3+/Yb3+ codoped nanocrystals.

MechanismTransition channel of and /

Mechanism 1
484nm
     520nm
     539nm
     653nm
653 nm

Mechanism 2
     484 nm
     520 nm
     539 nm
     653 nm
653 nm