Effect of Li+ ions on enhancement of near-infrared upconversion emission in Y2O3:Tm3+/Yb3+ nanocrystals

Dongyu Li, Yuxiao Wang, Xueru Zhang, Hongxing Dong, Lu Liu, Guang Shi, Yinglin Song
  • Journal of Applied Physics, January 2012, American Institute of Physics
  • DOI: 10.1063/1.4764028