Fig. 6.
Surfactant effects on the upconversion emission intensity for the RE’s with different adsorbed surfactants.70 Reprinted (adapted) with permission from ACS Applied Materials and Interfaces. Copyright 2011 © American Chemical Society.
Surfactant effects on the upconversion emission intensity for the RE’s with different adsorbed surfactants.70 Reprinted (adapted) with permission from ACS Applied Materials and Interfaces. Copyright 2011 © American Chemical Society.