Figure 6
PL properties of Eu 3+ :ACP porous nanospheres: (a) Room-temperature excitation and PL emission spectra of Eu3+:ACP porous nanospheres; (b) the PL of the powder of Eu3+:ACP (5 mol% Eu3+) porous nanospheres under UV irradiation at 365 nm; and (c) the PL of Eu3+:ACP (5 mol% Eu3+) porous nanospheres dispersed in deionized water under UV irradiation at 365 nm.