Research Article
A Comparative Study of Er3+, Er3+-Eu3+, Er3+-Tb3+, and Er3+-Eu3+-Tb3+ Codoped Y2O3 Nanoparticles as Optical Heaters
Figure 6
Optical heating behavior of the studied samples under 800 nm diode laser excitation as a function of pump power density, Y2O3:Er3+ (open red circles), Y2O3:Er3+-Tb3+ (solid black circles), Y2O3:Er3+-Eu3+ (open orange squares), and Y2O3:Er3+-Eu3+-Tb3+ (solid blue triangles).